matplotlib questions

[David Lowry-Duda]

> I am trying to modify the "Bar Graph Demo" at
> https://matplotlib.org/stable/gallery/index.html,  Lines, bars, and 
> markers
> but the more I experiment and change the code, the more messed up it
> becomes.

It is much easier to give constructive suggestions if you give a minimum 
runnable code sample that indicates what you're trying and what you're 
trying to do. See also http://catb.org/~esr/faqs/smart-questions.html

I'll also note that I see nothing called "bar graph demo" on the gallery 
page.

- DLD