René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Setting norm by string doesn't work for hexbin","articleBody":"### Bug summary\n\nIn #20752 I added support for `imshow(..., norm=\"log\")`, and documented that the feature is supported in particular by hexbin as well; but this doesn't actually work for hexbin, because hexbin tries to run stuff on the norm before normalizing strings.\n\n### Code for reproduction\n\n```Python\nfrom pylab import *\r\nhexbin(rand(100), rand(100), norm=\"log\")\n```\n\n\n### Actual outcome\n\n```\r\n  File \".../matplotlib/axes/_axes.py\", line 5247, in hexbin\r\n    if norm.vmin is None and norm.vmax is None:\r\n       ^^^^^^^^^\r\nAttributeError: 'str' object has no attribute 'vmin'\r\n```\n\n### Expected outcome\n\nno error\n\n### Additional information\n\nProbably the block\r\n```python\r\n        # autoscale the norm with current accum values if it hasn't been set\r\n        if norm is not None:\r\n            if norm.vmin is None and norm.vmax is None:\r\n                norm.autoscale(accum)\r\n```\r\ncan just be moved down a bit after collection.set_norm(norm) (then we can get back the canonicalized norm from the collection).  I haven't looked at how this interacts with the call to _scale_norm just below, though.\n\n### Operating system\n\nany\n\n### Matplotlib Version\n\n3.9.0.dev1523+g2723052176\n\n### Matplotlib Backend\n\nany\n\n### Python version\n\n3.12\n\n### Jupyter version\n\nno\n\n### Installation\n\nNone","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2024-04-19T14:10:07.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/28105/matplotlib/issues/28105"}