I’m wondering why pandas Series subtract a pandas dataframe produce such a strange result.

I’m wondering why pandas Series subtract a pandas dataframe produce such a strange result.

I’m wondering why pandas Series subtract a pandas dataframe produce such a strange result.

I try to rename the Index column to ‘idx’ and get rid of 0 using this code:

I try to rename the Index column to ‘idx’ and get rid of 0 using this code:

Here is a statement which filters a Pandas DataFrame:

I have a pandas dataframe that looks like:

I have a list of time string with different formats as shown

I’ve written a simple function to bin data into seasons based on years and months and I’m trying to use it to update a Pandas dataframe (The binning is arbitrary as described in the comments, and is irrelevant to the problem). I think the function is fine (I know it returns logical results when supplied with inputs manually) but I cannot use it to update the DF in vectorized fashion.

I’ve written a simple function to bin data into seasons based on years and months and I’m trying to use it to update a Pandas dataframe (The binning is arbitrary as described in the comments, and is irrelevant to the problem). I think the function is fine (I know it returns logical results when supplied with inputs manually) but I cannot use it to update the DF in vectorized fashion.