You need to use the numpy 'where' functionality
import numpy as np
x, y, z = np.loadtxt("fileName.dat", unpack=True) # or similar
# x, y and z are now numpy arrays and have built in functionality as
follows:
s = (z < 10.0) & (z**2 > 0.5) # or some other constraint. Produces an
array 's' of boolean values
plot(x[s], y[s]) # will plot only those x,y pairs for which s is True
marcusantonius <[EMAIL PROTECTED]>
28/10/2008 09:40 AM
To
matplotlib-users@lists.sourceforge.net
cc
Subject
[Matplotlib-users] How to plot only points which lie in a certain range
I'm sorry for this newbie question. I have a data file consisting of 3
columns, and want to plot the first versus the second column, but only if
the parameter in the third column lies in a certain range. Does somebody
have an idea how to do that?
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