savePng raises
ValueError: view limit minimum -0.05500000000000001 is less than 1 and is an invalid Matplotlib date value. This often happens if you pass a non-datetime value to an axis that has datetime units
when there are no values to show.
We should capture the exception and explain what's happening (maybe disabling the png or the entire process when df is empty).
savePng raises ValueError: view limit minimum -0.05500000000000001 is less than 1 and is an invalid Matplotlib date value. This often happens if you pass a non-datetime value to an axis that has datetime units when there are no values to show.
We should capture the exception and explain what's happening (maybe disabling the png or the entire process when df is empty).