Thanks a lot, Thomas.
I don’t have index when I read in the data. I just want to slice two series to
the same length, and subtract. That’s it!
I also don’t what numpy methods wrapped within methods. They work, but hard do
understand.
How would you do it? In Matlab or R, it’s very simple, one l
The original data was in CSV format. I read it in using pd.read_csv(). It does
have column names, but no row names. I don’t think numpy reads csv files.
And also, when I do a[2:5]-b[:3], it does not throw any “index out of range”
error. I was able to catch that, but in both Matlab and R. You get
