Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/13390#discussion_r65011674
--- Diff: docs/mllib-evaluation-metrics.md ---
@@ -182,17 +183,22 @@ $$\hat{\delta}(x) = \begin{cases}1 & \text{if $x =
0$}, \\ 0 & \text{otherwise}.
</td>
</tr>
<tr>
- <td>Overall Precision</td>
+ <td>Micro Accuracy</td>
+ <td>$ACC = \frac{TP}{TP + FP} = \frac{1}{N}\sum_{i=0}^{N-1}
\hat{\delta}\left(\hat{\mathbf{y}}_i -
+ \mathbf{y}_i\right)$</td>
+ </tr>
+ <tr>
+ <td>Micro Precision</td>
--- End diff --
Hm, on second thought, since we've deprecated precision/recall/F1 for the
not-by-label case maybe these should just be removed. Accuracy should stay.
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