I have this codeimport matplotlib.pyplot as plt

I have this codeimport matplotlib.pyplot as plt

I have this codeimport matplotlib.pyplot as plt

I’m creating a Matplotlib chart and then saving it to a file. (I’ve tried PNG, SVG, and PDF.) I want to email it to others.

I’m using matplotlib’s collection, and in some cases I’d like to change the value of segment.

The following complete code tries to plot some data with the x axis to show a time in the format HH:MM, and the time span is not even 1 minute. So I expect to see maybe the ticks 11:56, 11:57 and 11:58. But it seems 3 ticks are too much?

My chart has unwanted artifacts:

Matplotlib issued the message:

I need to mark certain values in a plot without changing axes limits, e.g., I want a vertical line at x=pi/2 to mark the max(cos(x)) but I don’t want to figure out the appropriate y limits and I just want my vertical line to go from 33% to 67% of the axes. So, as per vertical & horizontal lines in matplotlib, I am using axvline.

I was searching for how to plot a scatter plot with points that have a transparent face but coloured edges. This page gave some ideas, but I find the behaviour of some arguments to differ than reported there. For example, one answer describes argument c as affecting both face color and edge color, causing arguments for the latter two to be ignored. In contrast I found the following to be synonymous: c, color, facecolor, facecolors.