在 Pandas seaborn 中制作堆积条形图

Question

I have the following dataframe:

I want to create a stacked bar graph where the x-axis is the provider, y-axis is the percentage and the stacks are the visit number. The visit number may change for example gastro may have percents up to 10 visits but pediatric may have 7 visits. I am not sure how to create the stacked graphs. This is the code I am using currently:

sns.barplot(x="provider", y="percentage",
                col="visit_number", data=df[df['visit_number'] == 1], kind="bar", palette=palette)

However, I get a separate graph based on visit number but I want it in one stacked graph. Please advise.

Answer 1

Try:

df.set_index(['provider','visit_number'])\
    ['percentage'].unstack()\
    .plot.bar(stacked=True)