On Mon, Sep 26, 2011 at 12:24 PM, John Hunter <jdh2...@gmail.com> wrote: > On Mon, Sep 26, 2011 at 12:05 PM, Katie Boyle <katielbo...@gmail.com> wrote: >> Hi All, >> >> I was wondering how I take a list of 250 discrete values and match up each >> value in the list to a color in the gist_rainbow colormap. I want the >> highest value to be red, and the lowest value to be blue. I then want to >> plot a point for each value in the list, and the point's color should >> represent its value. I cannot use contourf or any other function that does >> this automatically on a continuous grid--I need to plot individual points. > > I think you are looking for "scatter", with the "c" argument being > your intensity value. You can pass the gist_rainbow colormap to the > scatter function via the cmap argument. See these examples > > http://matplotlib.sourceforge.net/examples/pylab_examples/scatter_demo.html > http://matplotlib.sourceforge.net/examples/pylab_examples/scatter_demo2.html
Eg, In [43]: x, y, c = np.random.randn(3, 100) In [44]: plt.scatter(x, y, c=c, cmap='gist_rainbow') Out[44]: <matplotlib.collections.PathCollection object at 0x981b22c> ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
