Bug fixes on delta_g

Fixes #148.

Author: Jacobluke-

dabest/_stats_tools/effsize.py

@@ -59,7 +59,7 @@ def two_group_difference(control:list|tuple|np.ndarray, #Accepts lists, tuples,
     import numpy as np
     import warnings
 
-    if effect_size == "mean_diff" or effect_size=="delta_g":
+    if effect_size == "mean_diff":
         return func_difference(control, test, np.mean, is_paired)
 
     elif effect_size == "median_diff":

nbs/API/effsize.ipynb

@@ -117,7 +117,7 @@
     "    import numpy as np\n",
     "    import warnings\n",
     "\n",
-    "    if effect_size == \"mean_diff\" or effect_size==\"delta_g\":\n",
+    "    if effect_size == \"mean_diff\":\n",
     "        return func_difference(control, test, np.mean, is_paired)\n",
     "\n",
     "    elif effect_size == \"median_diff\":\n",