Merge pull request #28 from red-data-tools/fix_histogram

UnicodePlot.histogram([1, 2]) shouldn't raise error

Author: mrkn

test/test-histogram.rb

@@ -108,5 +108,11 @@ def setup
       assert_equal(fixture_path("histogram/parameters2.txt").read,
                    output)
     end
+
+    test("issue #24") do
+      assert_nothing_raised do
+        UnicodePlot.histogram([1, 2])
+      end
+    end
   end
 end

unicode_plot.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.executables = spec.files.grep(%r{^exe/}) {|f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency "enumerable-statistics", ">= 2.0.0.pre"
+  spec.add_runtime_dependency "enumerable-statistics", ">= 2.0.1"
 
   spec.add_development_dependency "bundler", ">= 1.17"
   spec.add_development_dependency "rake"