How to avoid scientific notation when annotating a seaborn heatmap

Question

I have a dataframe that contains percentages. If I use seaborn to make a clusterplot somehow the number 100 is plotted as 1+e01.

Is there any way to avoid this?

I tried rounding the percentages before plotting them, but that does not affect the plot.

Answer 1

Use fmt="d", as in this example:

import seaborn as sns
sns.set()

flights_long = sns.load_dataset("flights")
flights = flights_long.pivot("month", "year", "passengers")
flights = flights.reindex(flights_long.iloc[:12].month)

sns.heatmap(flights, annot=True, fmt="d")

fmt is a parameter to heatmap but additional clustermap kwargs are passed through to the main heatmap.