MAINT, ENH [numpy#10736] Add interpolation methods to quantile

- Added the missing linear interpolation methods. - Updated the existing unit tests. - Added pytest.mark.xfail for boolean arrays See - numpy#19857 (comment) - numpy#19154
bzah · Oct 6, 2021 · 0d6f55e · 0d6f55e
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diff --git a/doc/release/upcoming_changes/19857.improvement.rst b/doc/release/upcoming_changes/19857.improvement.rst
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+Add new linear interpolation methods for ``quantile`` and ``percentile``
+------------------------------------------------------------------------
+
+``quantile`` and ``percentile`` now have 13 linear interpolation methods,
+nine of which can be found in the scientific literature.
+The remaining methods are NumPy specific and are kept for backwards
+compatibility. The default is "inclusive" (method 7), whose behavior is equivalent
+to the former default "linear".