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[ENH] Predictions: Show errors #6012

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merged 1 commit into from
Jun 22, 2022

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janezd
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@janezd janezd commented Jun 9, 2022

Issue

Closes #5971.

Description of changes

Add columns with errors for each predictor.

Please comment on functionality and interface. Checking and tests will come afterwards.

Try it on housing and heart disease; errors on iris are too small.

Includes
  • Code changes
  • Tests
  • Documentation

@ajdapretnar
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I fully approve this functionality! It enables selecting the most underpredicted, overpredicted and best predicted instances and showing them in the scatter plot. I also like the many options for error computation, discretely placed at the top.

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codecov bot commented Jun 12, 2022

Codecov Report

Merging #6012 (def1d61) into master (6d95493) will increase coverage by 0.01%.
The diff coverage is 96.61%.

@@            Coverage Diff             @@
##           master    #6012      +/-   ##
==========================================
+ Coverage   86.60%   86.61%   +0.01%     
==========================================
  Files         315      315              
  Lines       67317    67479     +162     
==========================================
+ Hits        58297    58447     +150     
- Misses       9020     9032      +12     

@janezd janezd changed the title [RFC] Predictions: Show errors [ENH] Predictions: Show errors Jun 12, 2022
elif self._probs[column].size:
return 1 - self._probs[column][row, int(actual)]
else:
diff = self._values[column // 2][row] - actual
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column was already divided by 2 above (line 1271)!

I must say, there is quite a lot of %2==1 and //2 in this file... :)

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column was already divided by 2 above (line 1271)!

It is disturbing that (seemingly thorough) tests didn't catch this because they used only a single predictor... :(

I fixed this and modified the tests to use two predictors.

I must say, there is quite a lot of %2==1 and //2 in this file... :)

Apparently (at least) one too many. :)

@lanzagar lanzagar merged commit 52cbdb0 into biolab:master Jun 22, 2022
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Show errors in Predictions
3 participants