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Clarify semantics of plt.matshow(..., fignum=...).#27244
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The semantics of the fignum parameter are rather confusing (inparticular wrt. whether the figure gets resized or not -- it only doesif fignum=(None or a non-existing figure number) (which creates a newfigure), but not if fignum=0 (which also creates a new figure).It's probably not worth fixing that (if anything we should just pointusers to Axes.matshow, which is just fine), but we can still improve thedocumentation.
tacaswell approved these changesNov 1, 2023
meeseeksmachine pushed a commit to meeseeksmachine/matplotlib that referenced this pull requestNov 1, 2023
QuLogic added a commit that referenced this pull requestNov 1, 2023
…244-on-v3.8.xBackport PR#27244 on branch v3.8.x (Clarify semantics of plt.matshow(..., fignum=...).)
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The semantics of the fignum parameter are rather confusing, per#22972 (in particular wrt. whether the figure gets resized or not -- it only does if fignum=(None or a non-existing figure number) (which creates a new figure), but not if fignum=0 (which also creates a new figure).
It's probably not worth fixing that (if anything we should just point users to Axes.matshow, which is just fine), but we can still improve the documentation.
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