add show_labels option to plot_roc reiinakano#116

Author: celik-muhammed

scikitplot/metrics.py

@@ -328,9 +328,10 @@ def plot_roc_curve(y_true, y_probas, title='ROC Curves',
 
 
 def plot_roc(y_true, y_probas, title='ROC Curves',
-                   plot_micro=True, plot_macro=True, classes_to_plot=None,
-                   ax=None, figsize=None, cmap='nipy_spectral',
-                   title_fontsize="large", text_fontsize="medium"):
+             plot_micro=True, plot_macro=True, classes_to_plot=None,
+             ax=None, figsize=None, cmap='nipy_spectral',
+             title_fontsize="large", text_fontsize="medium",
+             show_labels=True,):
     """Generates the ROC curves from labels and predicted scores/probabilities
 
     Args:
@@ -372,6 +373,9 @@ def plot_roc(y_true, y_probas, title='ROC Curves',
         text_fontsize (string or int, optional): Matplotlib-style fontsizes.
             Use e.g. "small", "medium", "large" or integer-values. Defaults to
             "medium".
+        
+        show_labels (boolean, optional): Shows the labels in the plot.
+            Defaults to ``True``.
 
     Returns:
         ax (:class:`matplotlib.axes.Axes`): The axes on which the plot was
@@ -455,7 +459,8 @@ def plot_roc(y_true, y_probas, title='ROC Curves',
     ax.set_xlabel('False Positive Rate', fontsize=text_fontsize)
     ax.set_ylabel('True Positive Rate', fontsize=text_fontsize)
     ax.tick_params(labelsize=text_fontsize)
-    ax.legend(loc='lower right', fontsize=text_fontsize)
+    if show_labels is True:
+        ax.legend(loc='lower right', fontsize=text_fontsize)
     return ax