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181 alternative to q q plot to evaluate regression results #187

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181 alternative to q q plot to evaluate regression results #187

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@patrickleonardy patrickleonardy commented Nov 28, 2023

Story Title

Alternative to Q-Q plot to evaluate regression results

Changes made

Added two functions to create plots to the RegressionEvaluator:

  • plot_residuals():
    • plots the residual vs the actual values.
    • plots also the 0 line to see if we are above or ben
  • plot_residuals_by_bin():
    • plots the residual vs the actual values binned.
    • binning strategy can be: uniform or quantile
    • number of bins can be chosen

How does the solution address the problem

Those two plots should be easier to interpret as the normal QQ-plot and thus can bring more value to discussions with business stakeholders.

Linked issues

Resolves #181

Plots

plot_residuals_by_bin(nbins = 5, binning_strat='uniform')

image

plot_residuals_by_bin(binning_strat='quantile', nbins=10)

image

evaluator.plot_residuals()

image

sandervh14 and others added 15 commits April 7, 2023 12:05
@sandervh14
Merge pull request #162 from PythonPredictions/develop
e1f6f45 
Release v1.1.1: merging 2023-03 development branch to master for 2023-03 release.
fix the bug by taking the style directly from sns
a80291a
add test to check if polt work
8025f7c
make plot_fn return the graphs and not show them
6130a4b
Needed some changes in astype to pass
c6c3c56
add the axes object to figure output
4238080
adapt notebook to show the plot in the tuple
30ceadf
import Tuple for older versions of pythin
f0627d1
feat(plots): make show the plots when created
e57771a
Merge branch 'HOTFIX--matplotlib-styles-bug' into 181-alternative-to-…
044dc51 
…q-q-plot-to-evaluate-regression-results
feat(plot_residualt): add visualization methods
93f0c34
feat(examples): add e.g.of new visualization
9d4dc63
feat(docs): add documentation
a66c06b
feat(pytest): continue tests when showing plot
df7a5e6
feat(pytest): add tests for the new functions
edc605d
@patrickleonardy patrickleonardy self-assigned this Nov 28, 2023
@patrickleonardy patrickleonardy linked an issue Nov 28, 2023 that may be closed by this pull request
Alternative to Q-Q plot to evaluate regression results #181
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@joostneuj joostneuj Awaiting requested review from joostneuj

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Alternative to Q-Q plot to evaluate regression results

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@patrickleonardy @sandervh14