DOC: Clean up of DataFrame.ewm

[sursu]

• closes DOC: clean up DataFrame.ewm #31647
  Though, I don't know what @MarcoGorelli meant in the 5'th issue.

Didn't know how to expand my previous Pull Request: #32212, as I have already deleted the files on my machine.

Here are the screenshots, @WillAyd:

In the first image a controversial change might be: log(0.5) -> -ln(2).
The Notes have been expanded with a simple example from the provided link.

[pep8speaks]

Hello @sursu! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file pandas/core/window/ewm.py:

Line 74:87: W291 trailing whitespace
Line 80:85: W291 trailing whitespace
Line 81:27: W291 trailing whitespace
Line 84:42: W291 trailing whitespace
Line 85:88: W291 trailing whitespace
Line 88:1: E101 indentation contains mixed spaces and tabs
Line 88:1: W191 indentation contains tabs
Line 89:1: W191 indentation contains tabs
Line 89:71: W291 trailing whitespace
Line 90:1: W191 indentation contains tabs
Line 92:1: E101 indentation contains mixed spaces and tabs
Line 92:77: W291 trailing whitespace
Line 96:5: E101 indentation contains mixed spaces and tabs
Line 96:5: W191 indentation contains tabs
Line 97:5: E101 indentation contains mixed spaces and tabs
Line 97:5: W191 indentation contains tabs
Line 97:20: W291 trailing whitespace
Line 98:5: E101 indentation contains mixed spaces and tabs
Line 98:5: W191 indentation contains tabs
Line 99:5: E101 indentation contains mixed spaces and tabs
Line 99:5: W191 indentation contains tabs
Line 100:1: W293 blank line contains whitespace
Line 102:84: W291 trailing whitespace
Line 103:88: W291 trailing whitespace
Line 104:67: W291 trailing whitespace
Line 107:84: W291 trailing whitespace
Line 109:83: W291 trailing whitespace
Line 110:80: W291 trailing whitespace
Line 113:34: W291 trailing whitespace
Line 114:36: W291 trailing whitespace

Comment last updated at 2020-02-25 04:03:39 UTC

[WillAyd]

Didn't know how to expand my previous Pull Request: #32212, as I have already deleted the files on my machine.

Can you continue back in that PR? Comments are already filed therein so shouldn't open a new PR as it makes things more difficult to track

If you don't have on your machine just pull from your remote branch to restore