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In PR #56341 , we've identified a compatibility issue in Styler.bar
where numpy methods fail to properly handle pd.NA
.
Related comment as below:
Then the next question is what are the other uses of values
. In the code below you will observe the function np.nanmean(values)
. Does this mean your fix will not work when align="mean"
? Or if align
is callable?
values
is also used when there is a cmap
.
Originally posted by @attack68 in #56341 (review)
To demonstrate the problem, I have prepared a code snippet and screenshots showing the error caused by align='mean'
. I believe a detailed examination of the compatibility of numpy methods with pd.NA
in Styler.bar
is needed.
import pandas as pd
df = pd.DataFrame({"A":[1, 2, pd.NA, 4]})
df.style.bar(subset="A", align="mean")

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