热图中的值不可读

Question

I have a dataframe df containing numeric values 1432,22390,43223 and so on...
When I try to plot it using a heatmap like this
sns.heatmap(df[cols].transpose(), annot=True)
I'm getting these unreadble values 2.2e+04, 1.7e+03 etc. The thing is that in another notebook I'm using the same code and it works perfectly.
So what is the problem?

Answer 1

When you set annot=True , the default param fmt='.2g' is being applied (ie, it is going to round each number to 2 significant digits and then formats the result in either fixed-point format or in scientific notation, depending on its magnitude). To have the general format, you simply change fmt='.2g' to fmt='g' .

Here you can find more information about formats