Question: Each 30 minute interval is a column header. I want to have seven sub columns underneath each of them. When I try to multi-index i get this error: Length mismatch: Expected axis has 13 elements, new values have 91 ...
Question: In Perl, I can do Then $x1 and $x2 are 1; $x3 and $x4 are ‘undef’ Does Python has something similar to this so that x1 and x2 are 1; x3 and x4 are None? I tried above, Python ...