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<html><head><title>Genplot Enhancements Log File</title></head><body>
<pre>
LIST OF ERROR FIXES IN ANSI-C DEVELOPMENT
===========================================================================
Prty 0: Nice upgrade feature
1: Minor bug but not severe, or high priority feature upgrade
2: Major annoying bug but not computationally wrong
3: Error in results -- must be fixed now
===========================================================================
QUICKIE MOD REPORTS:
===========================================================================
9/20/2013: implemented better means of randomizing array. Go through
sequentially putting into element i randomly one of remaining n-i.
Only documented here in case of some later issue.
8/7/2013: let could not set individual elements of an integer array or
a linked integer array. Not a problem until the $AXCOLR was changed
from a real array to an integer array.
6/13/2013: Fixed problem with binning faulting in error if all the
values were equal. Had to do with trying to round 0.00 to a fixed
number of significant digits (duh ...). Sometimes we are not so
bright.
2/14/2013: *VERY OLD* bug squashed. When printing a graph at less than
100% scaling, the width of the lines increased rather than decrease.
Was dividing by the scaling factor rather than multiplying. Ouch ...
should have looked and fixed this *long* ago.
2/8/2013: Fixed read so that one can use options to %digitize again. Once
axes are calibrated "read %digitize -hold" will once again give you
the ability to reuse same coordinate system.
1/17/2013: Minor fix after stck problem. Moved block code "holding" the
stack pointers before function calls to surround all function type
calls in GVPARSE. Problem showed up with GVLINK'd functions from the
GPIB module. Need to keep eye on other types for functions.
1/2/2013: Fixed strange problem that's been hanging around "function"
evaluation functions such as sum(), prod() and integral. Showed up
first in a solve() where the second version of this code failed.
define f(x,y) = x+y
eval f(solve(x-1,0,2),3) /* succeeded
eval f(3,solve(x-1,0,2)) /* failed
eval f(sum(i,0,5),5) /* correct
eval f(5,sum(i,0,5)) /* incorrect
Finally tracked the problem down to stack referencing in the parse
routine. Should be resolved now. I tried to test, and hopefully
have done enough to expose obvious problems.
eval f(solve(x-1.5,0,solve(x-2,0,3)),solve(x-0.5,0,2),solve(x-1,0,2))
But as a result, added good debug code to math operations. For fun,
let $SysDebugFlag = 6
and then do some math operations.
1/1/2013: Fixed problems with wait. Now functions properly with time out.
1/1/2013: Fixed problem with int2bin(2^32). Now works with any value
up to 1E19 roughly (64 bit precision). Also modified most of the
evaluation routines to work with 64-bit integers so won't have problem
again.
11/26/2012: The "define f(x) = 1.02x" failed to generate errors and did
not do the apparent implicit multiplication. Problem is the function
variable substitution changes "1.02x" to "1.02&00" which was then
interpreted as a binary AND operation. Changed the & in the substitution
to the character 0x7F so that this will not happen anymore.
10/23/2012: Fixed occasionaly problem with @median() function that would
fail to converge to the median.
10/8/2012: Fixed overflow problem when doing convolution of data on very
large number scale (SIMS data at 1E21). Not sure exactly the error,
but solved quickly by normalizing both arrays to [-1,1] and undoing
the scaling at the end. Modified corrl() routine in fft2c.c.
9/17/2012: Changed slope/offset language to slope/intercept in linear fits.
9/17/2012: lrand48() and mrand48() functions used lower 32 bits of the
LCG sequence. Changed to use upper bits which have better random
behavior.
1/31/2012: Several CRT routines (such as close()) called an OS error handler
for invalid parameters. The default action of this handler is to
terminate the program and generate a crash report. This is annoying
in evaluation where such errors are common. Used CRT function
_set_invalid_parameter_handler() to cause these parameter range
errors to be ignored. Functions just return an error rather than
crashing. Debug mode can be used with the handler to figure out
where the failures occured.
12/6/2011: Switching arguments in BETAI_Ix did not get fully propagated
to all uses. The @t_test(ar1,ar2) for example failed. Nopefully now
all internal uses are again consistent.
11/7/2011: Fixed problem allocating a empty string
Reported segment error with command
declare astr = ""
failed. Problem with initial allocation of strings now NULL instead
of a default length.
9/3/2011: Fixed problem with logarithmic axes that were more than 7
decades and all values were negative
8/28/2011: sprintf function did not accept "C-language" strings with
embedded control characters. Now fixed ... printf, errprintf, and
sprintf all work the same.
7/16/2011: maxtrix insert_data / extract_data
Both ROW and COLUMN executed as column, and both X and Y executed as
FOW. Fixed both commands so can do both column and row.
7/15/2011: matrix extract
Off by 1 in both rows and columns. Problem with 1-based indexing for
rows and columns versus 0 based indexing in code.
3/11/2011: pwd() and cwd() got wrong argument list in code change for
arbitrary argument structure. Complained of too few arguments. Simple fix.
3/10/2011: Still problems parsing when E is the dummy variable.
define f(e) = 1.07E-7*E-3
was failing since there E-3 looked an awful like 1.07E-7. Had to
add check that character preceeding was not a decimal digit or decimal
point.
1/5/2010: sprintf() could not accept a string replacable argument
define f(#text) = sprintf("a%sb", text)
failed. Now should work
10/10/2010: binomial(x,n,p) modified to return 0 for x<0 or x>n
9/20/2010: Minor change to @skew() and @kurt() to return proper
estimator of parent moments in case of small skew/kurt and small sample
number. Now done correctly (or at least as most other definitions
implement these moments).
9/x/2010: Fix ls so "ls adir/" succeeds as if "ls adir" rather than fail.
7/27/2010: isatof() and isatoi() now return FALSE (0) for an empty string.
5/17/2010: Changed the flow of the GENPLOT read to fail gracefully with
bad options. Attempting to do a binary bitmap read from the
console now just gracefully gives an error message.
5/17/2010: Change to allow recursion within function of functions. Now
valid
solve(integral(t^2|t,0,x)-1|x,0,2)
4/19/2010: 0j+SQRT(-1) returned -j instead of j!!! Windows compiler
seems to randomly change between +/-0 and distinguish the two.
Added line "if (z.y == 0) z.y = 0" which fixed the problem :-(
3/16/2010: Fixed minor problem with "click" start of XGenplot or Genplot.
Was failing to terminate the string from command line options. Now
should behave better if you associate .mac and .dat files with
XGenplot (or .rbs files with RUMP).
2/26/2010: Ouch - very strange problem.
define f(e) = 3*e*1E-7
would fail because the E in 1E-7 was considered a dummy variable.
Put in essentially a specific check for this problem (gvcode).
define f(E) = 3*E*1.0e-7 create y = f(x) -range -10 10 lt 1 pl
2/3/2009: Fixed minor problem when running shell commands in a directory
path that contains spaces. In XGenplot or XRump, external commands
must be passed to the command processor to execute as if they had
been typed at a console session. That means quotes around the
executable path if it contains a space. Oops - forgot that since
never put spaces in names normally.
10/26/2008: Selecting an invalid palette (-palette <name>) with plot
would crash GENPLOT hard. Now just defaults to some palette to
continue running with error message
2/6/2008: The bit-wise operators & and | failed due to addition of new
math operations. They needed to be one of the first 255 listed and
that condition was violated. Now moved to the very early part of
the list to avoid in the future.
12/11/2007: The common "-curve <cv>" modifier for commands failed to allow
for a 3D curve. Had "(itype != GV_2DCURVE) && (itype != GV_2DCURVE)"
where the second one should have been GV_3DCURVE. The implicit check
was valid.
11/28/2007: Minor correction to the @t_test(ar1,ar2) code. Now uses
fully proper expressions for the pooled standard deviation.
10/7/2007: Long overdue fix to ls. sizeof(ptr) versus strlen(ptr)
10/4/2007: One fix to string arrays broke key use. Temporary use of a
variable that got fully utilized in new code. Quit kludging!
10/1/2007: Fixed problem with Rank-Spearman which appeared with last
change to heap_sort procedures
9/20/2007: The error with DIR on huge directories has finally been
resolved.
9/12/2007: Allocating of string arrays tied maxsize to size. Has been
fixed so changing size doesn't modify the allocated size.
9/12/2007: The forlist (var) failed if length of var was greater than 4096.
This arose from a test
if (space availble < size of var) {
increase space by 4096
}
changed so increase is at least bigger than sizeof var.
Single items in the final list still cannot exceed PATH_MAX
characters, currently 256.
8/30/2007: The -range command in fit commands has been failing for some
time. Not a problem with specification of an XRANGE, but
always with Y. Ouch ...
8/23/2007: Some bitmaps report negative height or width. Now use absolute
values, but report as a warning.
6-2-2007: *Very* minor fix to evaluator precedence. Bitwise or was
given precedence of logical or. Doubt anyone hit that bug :-)
5-12-2006: Revised slightly the operation of the matrix read code. The
read will only proceed as far as the request for data extends
from the -ROWS <low> <high> option on the read command line.
3-22-2006: Fixed memory leak in matrix rotation code. Dumb mistake :-(
10-10-2005: Put in a "GVTrimToReal" for all ASCII reads. Reading a number
out of range (10^309) was causing overflow exceptions.
8-2-2005: Tired of slow main-curve expansion when reading millions of
points. Now number of points doubles each time an ASCII read
must expand the main curve size.
8-2-2005: Modified the AVI read code to permit reported image sizes that
are greater than the product of the width*height*bytes. Do not
understand the underlying cause, but just choose to print a
warning and ignore the trailing information.
6-27-2005: Fixed error reading "lookup-table" AVI files. Returns the index
of the table entry, not the actual color. B/W files will range
from 0-255 instead of 0-765 under this circumstance.
6-24-2005: Change to curfit/nlsfit. At some point, the alpha matrix was
normalized to improve/stabilize the matrix inversion. Some
data sets however do generate diagonal values of zero which
then cause divide-by-zero error in code. This is now explicitly
checked in the code, turning off the normalization if zero.
As it indicates a variable with no chi-square change, there
is likely to remain a real problem with fitting, but at least
the code won't hang.
11-9-2004: Forced pl -lt 0 -sym 0 to no longer hang up forever :-)
10-19-2004: Cleaned up internal code in allocate() and added help. alloc -?
gives a reasonable explanation of how it works.
10-18-2004: Minor problem in NLSFIT. If working with a 3D function, it only
defined the function f(x) instead of f(x,y). Fixed while drinking
heavily on flight to SFO, so hope no other problems introduced.
9-20-2004: If you just start GENPLOT, create y = sin(x) will crash. Ill defined
limits. All of the @xxxx(array) functions now return 0 if there is no
data in the array (n = 0).
7-3-2004: Finally resolved the issue of fft-filter crashing after just
starting xgenplot (occasionally). Failure to reset the
pointers after increasing the curve size was at fault.
6-7-04: Return of coordinates from cursor -box were exchanged. Had
xbox$[1] and ybox$[0] exchanged.
2-5-04: Despite writing a help for RUMP WRITE command, no way to get it
to display. Had to revise LexCheckHelp() so that a "test" could
be performed and have request moved from bmanip.c to rdwr.c.
9-26-03: Fix bug in drawing of grid lines on a non-linear axis. RD
discovered problem of lines going off bottom of graph. Oh well...
4-9-03: Fix minor bug in string variable editing dialog box. The C
function sprintf(szTmp, "%-20s %s", name[i], adr[i]) fails at
something like 1500 characters in adr[i]. Replaced it with a
safer string copy and concatenation functions. Also changed
the string editing dialog box to AutoHScroll to allow editing
of these rediculously long strings :-). Have got to get
procedures implemented soon.
4-1-03: The addition of the code to make ^Z auto-minimize the XGENPLOT
window broke the code for writing macro's and logfiles. These
commands used ^Z as the end-of-text indicator and hence failed
with no recourse :-( This has been fixed - the behavior of ^Z
is now state dependent, working properly in each case as expected.
3-31-03: Fixed annoyance with variable name translation in the presence
of % characters in the existing strings. Occurred in places where
the entire command string would be interpreted as a single object,
such as echo or ok;. The behavior occurs with expressions such as
echo power=54%/filename is %newname%
The parser saw the first percent and interpreted as the beginning
of a possible variable name. Scanning to the first %, it looked
for the variable name "/filename is " which - obviously - did not
exist. This however got everything out of sync looking for more
names. The code now tries ignores the % pair if the string it
would enclose contains whitespace.
3-14-03: Trivial. rand() now is on interval [0,1). Value 1 is never
actually observed. Previously had same probability as 0.
12-15-02: TRANFORM ZERO_PAD failed to expand the size of the main curve if
npt request was greater than nptmax. Now does so.
11-11-02: Random number generator is now initialized to a random (time based)
seed in RUMP as well as GENPLOT. OOPS ...
10-10-02: The file handing had a slight problem with some names and FCLOSE.
It was often necessary to deallocate the variable before reusing
or risk getting hung up. The code was changed to refer so that,
on fclose, the variable is reset to NULL and is known to be closed.
4-29-02: Identified the source of the failure of XGenplot and XRump on Dell
4100 laptops. In redirect.c, reset stdio and stdout handles were
relinked to the SetStdHandle. Have to have STD_OUTPUT_HANDLE to
get output from external programs to the screen (! dir). But don't
have to have STD_INPUT_HANDLE as long as programs do not require
input. If they do, we may crash.
4-18-02: Pipe stream reads now finishes with a full purge of the pipe. This
eliminates the annoying "GZIP Pipe Closed" message for instance.
Could be a problem if the pipe never shuts up, so there is also
a limit on the total number of purges. Minimum read is 100 kB
but actual will depend on previous read increases in buffer size.
3-9-02: CURSOR -TRACK gave meaningless message when npt was zero. Modified
error message so explains real problem.
3-4-02: Fixed problem with fopen in pipe-driver for UNIX. The fopen() in
Linux is now adament and will not permit "wb" (binary) options.
#ifdef segment to switch between needs of UNIX and Windows. Also
minor fix in UNIX to null-op on VIRTUAL_SHIFT_TAB characters (only
useful for reverse tracking filename completion in Windows).
1-28-02: Fixed problem with color failure on PM graph screen. Not sure of
the exact root cause, but clearly a race condition. Inserted
100 ms of sleep in the thread dispatching plot commands to the
main graph window from drvchild. Seems to have fixed many
of the stability problems.
9-18-01: PLOT -PLX TOP has failed for some time. Apparently nobody uses
it, including me, until now. But has been fixed.
4-30-00: FIT POLY 0 now fits y to a constant. Crazy way to do it, but
makes it at least consistent. Same as @ave(y),@std(y).
8-7-00: Fixed problem with filled symbols in reversed color orientation on
the PM screen.
8-2-00: Checked for negative index setting in arrays. c1:y[-2] will now
print the same warning as going beyond the end of the array.
5-16-00: Powerpoint bug squashed!!!!! Maybe. See comments in dialog box.
03-14-00: Minor fix in deallocation of command structures with error bar
plotting. Should not impact anything - showed up in new compiler.
02-29-00: YEAH! Maybe a fix for the ocassional window going totally crazy.
Switch to MSC 6.0 compiler identified wrong parameters to calls
on EndPaing and DeleteDC. These may have been cause of resource
overload that appeared in font selection, etc. Fixed now.
Bad news: There seems to be another hang introduced by MSC 6.0.
Must be careful.
09-30-99: Made \box work from within annote.
08-13-99: Minor fix to wordpos() to handle whitespace in needle, and to
avoid matching start of words. Must match full word.
07-09-99: Some problems in function parsing - involves string functions
only. Should be resolved.
define f(#x) = strlen(strcat(x,"hi "))
would lose the spaces in the character constant.
01-14-99: Changes xcur,ycur,icur,ccur from being dynamic variables within
the GENPLOT common block to being static variables. The use
of pop_state would pull these variables out from under their
definition and lead to potential invalid memory references.
01-04-99: Dieckmann pushes the limits again. Got me looking into ERFC
again for extreme arguments. Modified handling between 4.0 and
15 or 27 (depending on machine) to have fractional error within
1E-7. Now uniform over range [-be with 1E-7 of correct.
Also implemented lnerfc(x) to handle really bad arguments from
diffusion profiles.
12-28-98: Subtle problem with functions of no arguments. The following
was failing.
define h0 = 2
eval 1*h0
Tracked down and fixed -- but in midst of major overhaul of the
function evaluation so may have other problems.
12-21-98: Spent too many hours searching for a NLSFIT problem where the
limits were incorrectly given in reverse order (lower > upper).
Added code to check and spontaneously reverse - but with warning.
At the same time, extended massively the information printed
in mode VERBOSE 4. Recommend not running this mode :-)
12-17-98: Request to extend ERFC function to rediculous limits. Now will
do to arguments of 15.065574, where ERFC(x) is 1E-100 (UNIX) or
to 27.226 where ERFC(x) is 4.94E-324 (minimum of Pentium math
precision).
9-16-98: Yet yet another minor fix to @median to handle case where the
median is exactly equal to the maximum or minimum of the range.
Boy, talk about bad data sets :-)
9-2-98: @median(y) failed for wide dynamic range (1E-5 to 4000). Modified
so much more likely to converge, plus now gives error message if
it fails to converge.
8-14-98: Radius for ANNOTE->CCIRCLE now properly registered from cursor.
8-4-98: PAGESPLIT -? now gives help (as well as ? alone). Also added
SPLITPAGE as alias for PAGESPLIT.
7-10-98: For P. Smith. Added check in nlsfit so can be used for function
minimization where there is perfect error correlation between all
of the variables. Removes the divide by zero error.
7-7-98: Fixed word(xxx) and subword(xxx) functions to return null string
if ask for word more than in string.
7-7-98: Fixed subtle problem so that "substr silicon" is interpreted as
a non-string -- looking now for () to mark function calls in the
expression type guesser.
5-3-98: Fixed problem with difficulty moving windows when the cursor
was active in XGENPLOT. Windows would have their mouse posns
constantly changed by the cursor even when it didn't have focus.
2-20-98: Functions of no arguments may again be given no arguments.
time(), rnd(), etc.
2-19-98: Modified the ROUND(x,n) function to handle exactly 0.5 better.
Had always rounded one way -- now has modification to round on
average up and down equally.
2-16-98: Duh!!! A minus sign is considered punctuation. Well what planet
was I born on? Matrix read now deals with negative numbers
properly.
2-13-98: Added skipping over comments to 3D matrix read routine.
1-20-98: Added translation of %var% to expression in &encode usage. Fixed
so following works as expected.
declare var = ids
echo &encode "The value of %s is: %s" var %var%
1-18-98: Improved handling of large X offsets in convolution (and related)
routines. Should avoid the subtle shift noticed in some convolution.
1-15-98: Fixed argument pulling in LEXP so block statements (if blocks)
don't prevent the use of &getarg
11-29-97: Fixed so all of the axes get background colored with pagesplit.
10-22-97: Changed the environment variable "DYNT_LIB" to "GenplotSearchPath_NT".
This allows the setting inside the registry to be overridden at
run time via an environment variable.
10-21-97: Finally found the resource problem in the "pipe" internal calls.
The continual opening of handles is solved and should no longer
cause the desktop to "hang-up" when running out of resources.
Forgot that CreateProcess() returned open handles to both the
process and the main thread -- wasn't releasing the thread handle.
Seems to have resolve the problem.
07-24-97: Fixed gptfit so that "create 0 fit poly 2" does not crash with a
math divide by zero error. Range of data = 0 was a problem.
06-24-97: Finally found a way around the Windows 95 crash with internal
commands via the OK: command (I think). An extra parameter is
required on the command line which is now automatically generated.
06-14-97: There appear to be some conditions where @rms(array) is hitting a
DOMAIN error on SQRT. This appears to occur when the RMS is very
small compared to the average of the data set. The code has been
changed so that if the @RMS is within 1E-4 of the absolute value of
the average, it is computed by the direct average of <(x-<x>)^2>
instead of the algebraically expanded equivalent. (gvcalc.c)
05-25-97: Apparently I added the horizontal scroll for RDR in OS/2.
05-19-97: Eliminated divide-by-zero problem with dy/dx transform where data
was not strictly changing (x[i+1] = x[i]) making derivative very
difficult.
05-17-97: Stack overflow problem when specifying file*cmdline in XGENPLOT
fixed. May resolve other problems also. (OS/2 version only)
04-01-97: Minor problem - fflush() for GNU was only a flush() in con_unix.c.
03-21-97: Under Win95, VSORT.EXE (and all of the pipe drivers) failed. Had
to remove \LD compiler switch to force 95 compatibility.
03-20-97: Subtle error with ClipSymbols -- if an erase was not done before
the plot with autoerase off, then the symbol no-clipping failed.
Required adding ClipSymbol into HCOPY file structure.
03-20-97: NT: Printer dialog now retains the last used printer. Metafile
dialog now writes in the correct directory.
02-18-97: Screwup at Microsoft again (does this surprise me??? no.....).
Powerpoint does not interpret graphics on the clipboard the same
as any other Microsoft product. Copying a graph and then pasting
into Powerpoint screws up any letters not drawn along the
horizontal. Pasting the exact same clipboard into Word, Excel,
or the clipboard viewer works absolutely fine. Only Powerpoint.
The solution from Microsoft??? You should ask. Paste it into
Word, then copy it from Word to Powerpoint. Great! My solution,
make it obvious that Microsoft is screwed up -- add a separate
button to copy to the clipboard for Powerpoint. This distorts the
characters exactly as is necessary to compensate for Powerpoint's
screwups. Why oh why am I back fighting with Microsoft?????
02-17-97: Fixed problem with PLOT -SYM 31 - memory read buffer overrun. Syms
now wrap around at the appropriate point.
02-17-97: Added TrueType font support to NT PM screen driver (and printing)
02-17-97: Fix NT problem with special symbols in Postsript driver
01-29-97: Problem in NT with a particular spline. Not sure if compiler or
operating system or what -- fixed by increasing internal work of
spline to double precision and carefully converting back to REAL
via GVTrimToReal().
01-25-97: Fixed failure of CLIPSYMBOL NO in PORTRAIT mode. Modified
PlotInBound() to use new PlotConvert3DScale().
01-23-97: Fixed SUB_PLOT erasing too much on NT PM screen driver.
01-23-97: Fixed introduced bug where &getarg failed - changed code of GetToken
to safely save backup pointers.
01-17-97: Fixed minor problem which caused commands like ACTIVE alone from
SIM in RUMP to be ignored (returned to RUMP but did not execute).
Arose from default check for automatic variable setting.
01-03-97: Fixed GRID command in NT/95 (illegal address reference)
12-20-96: Maximum length of IDS on plots now DFLT_STR_SIZE (256) characters.
Previos was 80. Also won't overwrite other structures if too long.
12-16-96: SORT -STRICT on a 3D curve now looks at both X and Y to be identical
before dropping the point. Real screwup before.
12-16-96: "Typing" a file clears the entire buffer in OS/2 XGenplot version.
This now is modified so it just puts out 5 blank lines before
starting to output the file.
12-16-96: Fixed -L&S so works if common points in dataset
12-2-96: Squigg labelling (annote squigg label <frac> <text>) failed in
PORTRAIT mode. Now fixed.
9-16-96: Compiler patch to CTC005 installed -- seems to fix problem with
"sort" and "fixgrid" identified in latest version. Who knows
what has broken now ...
9-7-96: Initial NT port complete. Relatively small changes so that don't
expect major problems cropping up in the OS/2 and UNIX versions.
8-23-96: Fixed 3D axis problem when in other than landscape orientation.
8-23-96: Fixed read ~mot/xxx format usage on UNIX.
8-8-96: Documentation. OS/2 TCP/IP screwup. It is not possible to pipe
binary input into the lpr function from the TCP/IP 3.0 package.
While text can be sent via stdin, binary gets translated no matter
what one does! -b only works for files that are opened by lpr.
8-2-96: Changed reading for pen colors to use math mode allowing complex
functions such as mod(%c,7)+1 (which failed before due to the ,)
7-13-96: The file reading routines stripped the | sign before it could
be passed to user routines. This is now left as part of the
filename so can be processed elsewhere also.
read "| mac2os2 terminal.log" -user
can be used to read a Macintosh file in some strange format.
5-28-96: Increased size of equation and weighting functions in NLSFIT to
256 characters from 80 characters.
5-2-96: Fixed possibility of memory overwrite when first comment line in
an ASCII data file was longer than 80 characters. Now, the
comment is truncated before being assigned as the curve IDS.
2-11-96: Fixed problem with Lines_And_Symbols in flipxy mode.
2-11-96: Compiler bug causing failure of RUMP smooth bypassed with dummy
code under CSET/2. See anlytc.c for problem.
1-4-96: Pentium bug check removed from executable code and placed in the
install code instead. Hopefully it is now robust enough to not
falsely flag the error. Will only be warned at install and then
it up to the user to worry about later.
1-4-96: Modified character handling in pmdriv so that ~C will toggle the
cursor view window whether the focus is on the main graph window
or the cursor window itself.
1-4-96: Fixed the symbol definitions for \varphi in Hershey set.
12-15-95: Fixed the problem with error bars running through the center of
open symbols. Will again work as intended.
8-17-85: Added tilt,rotate, etc. to parms listing in GENPLOT.
8-17-95: Fixed failure of ANNOTE to handle user coordinate system when in
Portrait mode. Oh well ...
8-15-95: Increased a number of internal string variables to 256 characters
or more. Resolves pain in "declare" usage with very long strings.
8-13-95: Specifying a linewidth of less than 0.14 in the "LINEWIDTH" command
will now set the linewidth to the minimum .001 inches.
8-13-85: Well, actually put in code to support the "Disable Math/Greek"
and "No cursor display" buttons in PM Driver configuration. Looks
like I started to implement it and went to bed several months ago.
7-20-95: Changed handling of temporary files slightly. If the TMP
variable points to an invalid directory, it now prints an error
message and proceeds to use the current directory. Won't trap
on all invalid TMP names, but most. For example, set tmp=m: will
fail non-graciously if m: is not a real disk. Also,
"set tmp=e:\tmp\" is considered invalid, though "set tmp=e:\" and
"set tmp=e:\tmp" are all valid.
7-20-95: Changed shortcut-key for "FIT" menu to "I" so doesn't conflict.
7-20-95: Fixed problem with ^Z in macro files (I think). If a logical end
of file character is seen on any line in a macro, the line is
taken to mark the end of the macro and the line is executed only
to that point. The file is then considered as closed. On OS/2,
the logical end of file is ^Z, in UNIX, it is the ^D.
6-2-95: 3D failed to draw axes. Problem in transfering the 2D clipping
box (margin, offset) in a 3D environment. FIXPLT.C modified.
5-4-95: Check on let/setvar to see if string variable. Processing to
handle lists of numbers enclosed as single token disabled in
this case. 'let ids = "Sample 18, T=200"' works again while
'setvar a,b,c = "27,38,38"' will also work (more importantly
'setvar a,b,c,d = &boxcursor'.
4-20-95: 1 pixel error on left side of all symbols fixed (now slightly bigger)
4-20-95: Double release of memory in vsort.c fixed.
4-20-95: More problems with the Postscript driver. Ancient fix to bad
"include" programs like dvi2ps required a redefinition of 'def'.
This fix now breaks Postscript Level II. Decision to tolerate
only slight bad insertion programs on Level I printers, while
never breaking Level II printers. Might say tough, but let us
know if something else breaks. Symptoms will be a DictFull error
on Level I postscript printers.
4-10-95: Fixed last point being lost in average/squish/compress operations.
4-5-95: Fixed so "create y = x -range 1 0" (inverted range) works.
3-31-95: Put in #defines for fgetpos/fsetpos for GNU_EXTENSIONS for
really brain-dead old versions of GNU C. Don't think the rest
of the code has any chance of working with such non-ANSI compilers,
but at least it will now compile without fatal errors.
3-18-95: Fixed simple 5-pt smoothing in GENPLOT so less edge effects.
3-18-95: Fixed so "setv a,b,c,d = &boxcursor" works.
3-18-95: Fixed problem with \degree, and with many upper characters
expressed as \xx strings (\thorn, \eta, etc.)
3-17-95: Fixed problem with negative angle text in PM driver looking like
italics. Problem stuffing signed (negative) into unsigned.
3-17-95: Fixed so that read <<text will succeed even if next occurance
of text has trailing spaces. Maximum significant length of
token to terminate is 32 characters.
1-28-95: define f(m) = (m>0)?0:m failed. Modifed parsing of fncs exprs.
1-28-95: Histogram IDS don't automatically use solid lines.
1-28-95: create -by <val> would actually modify the by parameter in order
to exactly fit the range. New behavior is to use by exactly and
create all points that lie within the range.
1-18-95: Menu on PM screen changed to reflect usage of <ALT>P for print.
1-18-95: LEX processor would only switch to mathmode on first try of getting
a token. Second attempt after prompt switched back to default
mode. "define f(x,y) sin(x)*cos(y)" would fail if you entered the
f(x,y) after the prompt for a function name.
1-18-95: Title and timestamp fixed with new fonts.
1-12-95: Try once more to get the prompting right! Had been that giving
both -prompt and -default always took the default without ever
prompting. Oh well.
1-6-95: Added #ifdef around use of Bessel functions in gvcalc.c to handle
non-Bessel enabled compilers.
12-28-94: Minor change that may have fixed "load pearson" problem. On my
machine, "load pearson" is successful from any directory. .mdl
files loaded in this way should not require an extension, nor
being in a specific directory.
12-28-94: Changed the binary mode reading of files so that reading from a pipe
should be successful in all cases. Binary files no longer need
to be seekable. Use of -binary switch in pipe mode is required
however.
12-28-94: Per MOT request. Fixed so "setv a,b=7,8 eval (a>b)?a:b" works.
12-16-94: Per request by Pat Smith, the behavior of &GETARG has reverted to
an earlier mode. Giving a -DEFAULT action, but no -PROMPT string
will cause the DEFAULT to be accepted without user input if no
token exists on the previous command line. If you have an option
to a macro requiring only occassional setting, this can reduce the
amount of typing. But it also can be dangerous!
12-7-94: Fixed spelling of asterisk. Asterix still accepted though since
it is my preferred spelling (yes - it is from the comics).
12-7-94: Compiler optimizer optimized out the Pentium error check so all
machine report as pentiums with bug. OOPS. New version should
eliminate this annoyance!
12-4-94: Fixed invalid color problem when linewidth enabled on PM screen
or when rendering to printer, metafile or clipboard. Sorry
folks - got a bit too fancy for myself.
12-4-94: Changed storage of (REAL *) in HCOPY so should work with double
precision version of the code. Use memcpy instead of fancy
typecasts. Hope compilers are bright!
12-4-94: static () the routines in user_aix.c so names don't conflict with
versions in full RUMP package.
12-4-94: Fixed so histogram with npoint != 1 works properly.
12-4-94: HP7000/730 has major problems with X include files. Appears to be
related to strict ANSI compliance. For trial test, set
XCOPT to same as ECOPT plus defining _XOPEN_SOURCE. Someone will
hopefully let me know if this solves the HP7000 problem.
12-4-94: Fixed minor typecast problems in OSF make (hopefully)
Still some problem remaining in preprocessor handling of indented
#<directive> declarations.
12-4-94: Prompt in AUTOY now correct.
12-4-94: 172! and above now return largest representable number (not 1.0)
Also for negative numbers. However, since ! has precedence over
unary -, -100! will not fail.
10-18-94: Fixed problem in first points of TRANFORM AVERAGE and TRANSFORM
COMPRESS due to early setting of new value. (Thanks to LRD).
10-14-94: Attempted fix of segment fault when using locmin method in
nlsfit two times in a row. NextGuess not being initialized
soon enough in code.
10-14-94: alignment problem with allocation of variables manually in big
block and then local suballocation (first identified in NLSFIT).
Resolve by using malloc() freely without regard for efficiency
of heap management. (Reported and problem identified by MJU)
10-9-94: gamma(x) optimized with double precision version of GENPLOT. Now
max fractional error < 2E-10, average rms fractional error 8E-11.
10-9-94: All code checked to enable compilation with REAL defined as DOUBLE.
Can be handled by undef'ing the REAL_IS_FLOAT in sys/mytypes.h,
cleaning, and rebuilding.
10-8-94: Fixed lngamma in both real and complex mode so that behaves
properly with negative arguments. In real mode lngamma(int x)
will return exact for x < 20.
9-29-94: Fix to xdriver.c code from LRD. Frees driver structure only after
X-window fully exits in ENDFNC. Should eliminate spurious X Error
messages at shut down or device change.
9-18-94: Rewrote most of dialog box control in XTERM control windows.
Should be transparent at user level, but removes spaghetti code
and increase supportability. Maybe now the rest can be completed.
9-02-94: Fixed whole bunch of pstex devices in devixes.xxx to use subdev
7 for the encapsulated postscript format. Should add a device
"epsf_p" and "epsf_l" for generating portrait and landscape
encapsulated postscript files.
9-02-94: Due to problems with some code, the %%EOF end of file marker is
no longer written for EPSF POSTSCRIPT files. Also, to improve
exchange capability, the output from POSTSCRIPT is now in binary.
This will write only a <LF> instead of <CR><LF> pair at end of
each line. os22unix filter not needed to print - other programs
seem to tolerate either line ending without problems.
9-02-94: Incorporate LRD's code for a better X-window cursor - tried to
fix the compile errors on AIX, others can be reasonably expected.
8-29-94: Increased size of "expression" to 1024 chars in define, let, setv
so DPB's rediculous expressions don't overrun
8-3-94: Fixed so echo doesn't come on in NLSFIT when using GENPLOT_MACRO
or any of the other MACRO processes.
8-1-94: Fixed so &getarg with no arguments does actually prompt and return
a value.
8-1-94: Fixed an unreported error in grid - not sure what the error would
have done, but it is no more. Something about if axes were set
to top or right I think.
6-10-94: Identified and fixed error in calculation of Q(x^2|v) in both
the linear and NLSFIT routines. Oh well, only if x^2>v was there
an error, and I think few people actually understand it anyway.
(Kudos to D.P. Brunco for identifying the error.)
6-9-94: FIT NLSFIT modified to give more accurate error estimates. The
errors reported now are consistent with the full statistics given
by the LINEAR fit. If no error bar estimates on Y are given, then
NLSFIT estimates the uniform Y sigma needed to make this a
"reasonable" fit; error bars on parameters returned for this value.
If error bars are given, then error estimates on parameters are
correct. Q(chi^2) reported also with warning if it falls outside
the range [0.01,0.99].
6-9-94: FIT LINEAR modified. CHISQR$ variable is set to the reduced chi^2
if sigma error estimates are given. Otherwise, returns full chi^2.
This is consistent with the behavior of NLSFIT.
6-7-94: VSORT is now very quiet by default when started under UNIX. For
OS/2, it remains verbose.
6-7-94: Checks to see if disk really exists when ChangeDisk requested.
Ie., command m: will fail if m: disk is not real. There are still
problems with attaching to a CD when a music disk is there, but you
shouldn't be listening to music while you work anyway.
6-7-94: The USER -LOAD dll is no longer automatically released on a
"genplot reset" command. "reset -full" will release it.
6-7-94: ANNOTE now reports coordinates in %.4g format so works better when
in "coormode user" mode.
6-7-94: Length of the I/O channel string in devices.dat is extended so long
pipe* commands can be handled. Now 80 characters.
5-26-94: Several problems related to loading dynamic modules should have
been resolved. pearson.mdl no longer requires local DDE4MBS.DLL.
5-22-94: Minor changes to a large number of files to reduce/eliminate the
number of compiler warnings. Improves automated testing of the
compilation process - but should cause minimal operational changes.
5-20-94: Fix the HCOPY APPEND problem. Clearly no-one is using these
features anymore :-)
5-4-94: Maximum total # of characters on command lines extended to 2048.
Single function define f(x) = now allows 1024 characters
5-4-94: Problem with orientations on PM drivers. Rotation not recognized
on the fly in plots - behavior changes with redraw (PS)
4-29-94: Read of a large number of 3D points generates segment violation.
Bad pointer modification corrected. (RDR)
4-22-94: HCOPY SAVE error fixed. Warning message on exit deleted.
4-16-94: Fully fixed solid symbols on all LaserJet style output. Also
fixed very subtle bug in vsort causing system hang.
4-5-94: PLOT -HISTOGRAM now recognized with full option name
4-5-94: LT 4 does not disappear from "no-option" PM screen
4-4-94: Range in FIX_GRID now unconstrained as in DOS version.
3-28-94: Fixed the failure of 2^2 that crept in from fixes 3-25-94.
3-25-94: Modified the exception handling from expression evaluator. Should
shut up the underflow exceptions and give valid results (0) for
underflow conditions. Also turned off denormalize error so can
work with numbers to 5E-324, though precision lost below 2.225E-308.
3-21-94: Added GENPLOT as a default RETURN from CONFIG
3-21-94: Fixed so "eval 3==sqrt(9)" works as expected
3-21-94: Fixed fix_grid so range can include entire X range
3-9-94: Fixed black page printing with postscript driver.
2-27-94: More rigid checking of disk change command. C: or D: alone is now
required. Previously, any path beginning with x: was recognized
as a disk change - these now generate errors.
2-15-94: Moderate speedup of some math routines by inline math functions
instead of function calls. FFT benefits in particular.
1-27-94: Enable 3D axes. They work as far as I can tell including the HCOPY
redraws. Only problem is with massive skew, but too bad. Will not
be fixed. Only question is whether X,Y axis should flip "down" for
tilts beyond +/- 45 degrees, as happens for Z.
1-24-94: Fixed so "cd /" now works. "cd \" still fails because the \ is
read as request for continuation char. Always use / in UNIX and
OS/2.
1-24-94: Fixed labelling of non-linear Y axis with some increment values.
1-19-94: Maybe fixed strange error that caused first line of some data files
to be ignored. fseek(lun, 0L, SEEK_SET) replaced by rewind(lun).
This will be reported as a compiler bug.
1-19-94: Eliminated annoying crash of SVOUT on some operations. Easiest to
demo was: "axis hc dev null shrink 1.6". No longer crashes.
1-19-94: Solved crash that occured when bad device driver specified (LRD)
1-5-94: Fixed bug so 3D fitting allows "equ f(x,y)" without added quotes
1-4-94: Retrieve of a 3D structure now switches GENPLOT into 3D mode
1-4-94: Cull'ing of a 3D structure now works properly, though maybe not
exactly as expected for average, compress etc.
9-23-93: Fixed POSTDRV driver in sub-device 8 mode. Negative bounding box
values overwriting the %% comment of PAGES comment.
5-18-93: Timestamp indicated 12 hour with no AM/PM. Default is now 24 hour
but can be changed using "let $TSTAMP:FORMAT = '%X on %x'"
1-15-93: Palette choice in PM graph screen now saved in profile. Device
options in DEVICES.DAT has no effect now.
6-10-93: Changed output from ANNOTE cursor report so X and Y don't ever
run together without a space in between.
6-17-93: Made sample draw (2draw, 1draw) close straight. Still needs
arbitrary angles.
===========================================================================
FIXED PROBLEMS:
===========================================================================
Report: 9-1-92 From: MOT Prty: 1
Error: Lines of graph are lost if DEV PM and PLOT commands on same line
Source: The threads for PM drawing appear not to be fully initialized before
the first drawing commands come through from the main program. Will
need another semaphore to indicate when actual drawing is available.
FIX: 3/1/94 - think this is resolved.
Report: old
Error: Multiple graphs to postscript printer cause subsequent pages to be
printed shrunk and rotated.
Fix: Added document level save and restore of state around entire graph
component. No longer requires printer reset by spooling software.
Report: old
Error: If you kill a command line (^K), you can't get it back with yank (^Y)
Fix: Can do now (I think)
Report: old
Error: If the HCOPY vector save file filled up or generated an error, the
file would remain open and could not be deleted until GENPLOT ended.
Fix: Code now attempts to robustly close and delete the HCOPY file.
Message indicates fully the SAVE is now inactive.
Report: old
Error: Linewidth control did not work on PM screen
Fix: Finally figured out how to do it. Works well, and should work with
all hardcopy devices as well. On screen, it slows things down a fair
bit so must be enabled on options before run. There is another
control bit that is supposed to use thick lines when drawing. Not
clear if this works, but it slows things down so must be doing
something. See new options menu on PM graph screen.
Report: 11-18-93 From: linux users Prty: 3
Error: CONWaitChr fails causing help to be non-functional. No proper
implementation of setitimer() in linux GCC compiler.
Fix: Code for CONWaitChr has been completely rewritten to utilize
only POSIX terminal control operations, CANON and VTIME/VMIN
controls. WARNING: THIS MAY BREAK OTHER NON-COMPLIANT COMPILERS.
SEE THE TEST CODE IN NEW DIRECTORY UNIX_TESTS.
Report: 07-xx-93 From: LRD Prty: 1
Error: X display would crash if you tried to plot immediately after open
Fix: Problem traced to XdrawPoints() and XDrawSegments() being called
with 0 valid pts. Do own check to avoid crash (Fix 8/3/93 LRD)
Report: 07-28-93 From: LRD Prty: 3
Error: FIX_GRID fails if you specify the range
Fix: Bad programming - shoot the author.
Report: 06-29-93 From: KB Prty: 4
Error: Inequality comparisons backward in mathmode complex mode.
Fix: Bad programming - shoot the author.
Report: 06-13-93 From: RDR Prty: 3
Error: -errx, etc. error bars no longer work.
Fix: Determine length of function command buffer before resetting the
starting point. After resetting, length appeared to be 0.
Report: 10-29-92 From: Thompson Prty: 2
Error: If ^C typed while waiting for input on command line, program will halt
with SYS3171 error. This is compiler bug in the getch() routine and
there is no indication if/when it will be fixed. The problem will
disappear anyway with the introduction of the PM window interface.
Fix: New compiler fix has eliminated problem, mostly. After ^C, break is
not recognized until the next character. Solves much of the problem,
though not as elegant as the PM window will be.
Report: 06-01-93 From: MOT
Error: xeq now2 fails (as does any name starting with NOW for macros)
Fix: Running the internal created macro only works with "xeq n", "xeq now" or "xeq /".
Report: 06-01-93 From: MOT
Error: UNIX version asks that you end comments and macros with a ^Z
Fix: Modified prompts so ^Z is used for OS/2, but ^D is used for UNIX environments.
Report: 03-01-93 From: LRD Prty: 2
Error: On LINUX, fails to byte reverse properly on binary data file write
Fix: Original code byte reversed only on OS2 operating systems. Code now
changed so looks are architecture type. Currently i486 is recognized
as byte reversed format. All others are assumed to have normal byte
order (high byte to low byte on disk). This will affect ability to
read older data files written on LINUX.
WARNING: All machine architecture names have changed to be consistent with
other software. In particular, names are now nominally lowercase
with many more defined.
Report: 05-10-93 From: MOT Prty: 999
Error: sqrt(-1) returns -j
Fix: Default branch cut was taken along the negative real axis, so
sqrt(-1) could be + or -j. Fixed by making the branch cut a
selectable paramter. Added "MATHMODE BRANCH [positive | negative]"
as well as "MATHMODE STATUS".
Report: 05-07-93 From: MJH Prty: 2
Error: HPGL driver no longer does any pen colors except pen 1
Fix: min/max exchanged in limit instruction
Report: 05-06-93 From: DPB Prty: 1
Error: In function definitions, special characters not allowed in dummy
variables. define f(m_m) = fails.
Fix: Add special characters to allowed set [0-9][a-z][:$_]
Report: 05-06-93 From: KB Prty: 2
Error: define f(x) = {x} fails to recognize the replacement variable
Fix: Correct handling of {}[] as well as () in define expressions
Report: 03-17-93 From: RDR Prty: 2
Error: Following macro would fail
autoerase off erase
size 7 7 axis hcopy dev /
Fix: Don't leave extraneous code laying about
Report: 03-17-93 From: RDR Prty: 2
Error: Portrait mode on Postscript driver has problems
Fix: Change handling of size so reports proper limits to GENPLOT
Report: 02-28-93 From: BL Prty: 3
Error: @std(y) returns wrong value
Fix: Learn to code correctly, twit!
Report: 02-17-93 From: BL Prty: 2
Error: GENPLOT crashes drawing string '{abc}{def}'
Fix: Well, let's pass addresses if I want to get information back from
a subroutine. Fixed it, stupid!
Report: 02-17-93 From: AV's partner Prty: 2
Error: Plots to POSTSCRIPT fail with new driver
Fix: Command stack was being flushed before the page was "drawn".
Exchanged the order of the those commands and all is okay.
Report: 02-5-93 From: JSC Prty: 3
Error: Functions calling functions with args fail. g(a,f(b)) for example.
Fix: Critical failure in stack maintenance. Exhibited as wierd math
define f(x) = x define g(x,y) = x+y
eval g(f(10),0) works, but eval g(0,f(10)) fails.
Parsing modified to keep better track of internal evaluation stacks
Report: 02-4-93 From: DPB Prty: 1
Error: Transforms SQUISH and COMPRESS are reversed in sense from DOS version
Fix: Okay, now switched. Wish I could remember which did what without
the help.
Report: 02-1-93 From: LRT Prty: 0
Error: GENPLOT now starts with curve of 2048 points, all undefined
Fix: This arose when RDR requested curves be "allocated" with size set
to maximum. Special case on initialization now resets number of
points to 0.
Report: 01-25-92 From: LRD/DPB Prty: 0
Error: The format (E12.6) doesn't work in &ENCODE - compatibility problem
Fix: Okay, now it does.
Report: 01-25-92 From: LRD/DPB Prty: 0
Error: \circ in symbol table is inconsistent with TeX format
Fix: \circ, \triangle and \star are now defined and similar to TeX
\degree replaces usage of \circ for degree symbol (\degree C).
Also, added the thin space command \, as in TeX.
Report: 01-15-92 From: RDR Prty: 0
Error: The prompt in an &GETARG structure doesn't allow %xx% replacements
Fix: Okay, now it does.
Report: 01-15-92 From: TJ Prty: 1
Error: genplot_.ini is created in current directory rather than on path
Fix: Has been fixed. Failed to use os2.ini variable in code other than
main routine. It should open the first genplot_.ini that it finds
in the path when it starts. This should be in
/usr/genplot/os2/genplot_.ini. Saving the profile should overwrite
the one already open.
Report: 1-1-92 From: MJU Prty: 0
Error: Postscript output is not available in encapsulated format.
Fix: Incorporated much of DCS level 3.0 code from MJU as new postscript
driver. Devices 1-5 are normal postscript output, and 6-10 are
encapsulated output. Output conforms to DCS level 3.
Report: 9-8-92 From: JSC Prty: 1
Error: OS/2 Postscript driver places graph slightly different than DOS
Fix: Entire postscript code has been rewritten (see above). If this is
still a problem, it is now a new one. Old report is now defunct.
Report: 1-15-93 From: LRT Prty: 1
Error: CURSOR -TRACK has problems with pressing arrow keys too fast
Fix: Any key pressed within 200 msec of a return from any cursor function
will now be ignored.
Report: 1-13-93 From: LRD, DS Prty: 1
Error: Minor corrections to UNIX makefiles.
Fix: (1) Made GNU_EXTENSIONS consistent in all files (OOPS)
(2) Added (char *) casts to read() and write() calls
(3) Fixed spelling errors in abusive error messages
Report: From: Annil Prty: 2
Error: Help is non-functional on UNIX based machines.
Fix: After several tries, revised help file to include indexes based on
both big and little endien architectures. Should automatically
detect and handle either type machine in UNIX environment.
Report: 1-13-93 From: JK Prty: 1
Error: Create form y=f(x) no longer works. y= f(x), y =f(x) and y = f(x) okay
Fix: How many different syntax choices can there be. I think they are
all enumerated now.