[scikit-learn] suggestion for metrics.classification_report

[David R]

[Is there a better place to make a suggestion like this, other than this
mailing list?]

classification_report redundantly displays the *accuracy *on its own line
even though it is already also showing the *weighted average recall* which
is just another name for the *accuracy*!

Instead of this:

              precision    recall  f1-score   support
     class 0       0.50      1.00      0.67         1     class 1
 0.00      0.00      0.00         1     class 2       1.00      0.67
   0.80         3
        *accuracy   *                        *0.60         5*   macro
avg       0.50      0.56      0.49         5weighted avg       0.70
  0.60      0.61         5

How about something more like the following to avoid the redundant
accuracy line above (and perhaps to *also *label *balanced *accuracy
while we're at it):

             precision  recall   f1-score support
     class 0    0.50    1.00      0.67       1     class 1    0.00
0.00      0.00       1     class 2    1.00    0.67      0.80       3

      macro avg    0.50    0.56 *    0.49       5   * balanced
accuracyweighted avg    0.70    0.60 **   0.61       5   ** accuracy


David Rosen
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