Deleting lines from a plot

Community matplotlib-users
1

So obvious when someone tells you! Thanks for this, it is exactly what I was
looking for.

Carl

···

----- Original Message -----
From: "John Hunter" <jdhunter@...4...>
To: "Carl Mouser" <carlmouser@...603...>
Cc: <matplotlib-users@lists.sourceforge.net>
Sent: Thursday, May 05, 2005 11:55 PM
Subject: Re: [Matplotlib-users] Deleting lines from a plot

If you know which line you want to delete, you can call
ax.lines.remove(line) where line is a line instance.

    In [1]: line1, = plot(rand(10), 'ro')
    In [2]: line2, = plot(rand(20), 'b--s')
    In [3]: ax = gca()
    In [4]: ax.lines.remove(line1)
    In [5]: draw()

If you haven't saved the line instance, but can otherwise identify it
(eg you know it was the first line you plotted), you can do something
like

  ax.lines.remove(ax.lines[0])

or if you have labeled the line, you can identify and remove it with

  plot(x,y,label='my line')
  line = [line for line in ax.lines if line.get_label()=='my line'][0]
  ax.lines.remove(line)

JDH