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MultiIndex.is_monotonic_increasing

See original GitHub issue

This does not seem to be documented anywhere. For MultiIndex, how is .is_monotonic_increasing different from .is_lexsorted?

Issue Analytics

State:
Created 4 years ago
Comments:9 (5 by maintainers)

Top GitHub Comments

1reaction

MarcoGorellicommented, Feb 28, 2020

Does that mean MultiIndex.sortlevel will also only be sorting the codes, rather than values?

By looking at the source code, that seems to be the case.

This would be rather confusing and will not be useful for users …

If I’ve understood is_lexsorted and sortlevel correctly, I agree.

Might want to keep an eye on the thread in #32312

1reaction

MarcoGorellicommented, Feb 27, 2020

Does it mean anything or just not accurate?

Given the bug you uncovered in #32259, at the moment I’d say it’s more accurate 😃

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