Matplotlib transparent line plots

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Chapters
00:00 Question
00:33 Accepted answer (Score 343)
00:49 Answer 2 (Score 36)
01:09 Answer 3 (Score 4)
01:34 Thank you

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Full question
https://stackoverflow.com/questions/4320...

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https://meta.stackexchange.com/help/lice...

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Tags
#python #matplotlib

#avk47

ACCEPTED ANSWER

Score 367

Plain and simple:

plt.plot(x, y, 'r-', alpha=0.7)

(I know I add nothing new, but the straightforward answer should be visible).

ANSWER 2

Score 39

After I plotted all the lines, I was able to set the transparency of all of them as follows:

for l in fig_field.gca().lines:
    l.set_alpha(.7)

EDIT: please see Joe's answer in the comments.

ANSWER 3

Score 4

It really depends on what functions you're using to plot the lines, but try see if the on you're using takes an alpha value and set it to something like 0.5. If that doesn't work, try get the line objects and set their alpha values directly.