How Can I Add Value Labels to My Pandas Bar Plots?

Adding Value Labels to Pandas Bar Plots

Annotating bars with numerical values is a common practice for visualizing data clearly. To achieve this in Pandas bar plots, you can utilize a straightforward technique.

Firstly, your data frame provides the values you want to annotate. To get these values directly from the plot, iterate over the bar patches.

for p in ax.patches:
    ax.annotate(
        str(p.get_height()),
        (p.get_x() * 1.005, p.get_height() * 1.005)
    )

Adjust the offsets and string formatting as needed to align the annotations as desired. For example, the multiplication by 1.005 is used for slight right-alignment. You may also need to account for the width of each patch to center the text correctly. This method is particularly useful for non-stacked bar plots or stacked bar plots where you track the offsets manually.

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