df.plot() with kind='scatter' and datetime on x axis bug · Issue #30391 · pandas-dev/pandas (original) (raw)

I noticed while helping a student that there's a bug when calling a scatter plot as a method on a DataFrame. Regardless of what the index is or what the x argument is, it appears that pandas makes the x argument into the index, and then searches for the x in the columns, where it no longer exists. When calling the same directly through matplotlib as plt.scatter, it worked properly.