All, I am having difficulty with a line on: http://scipy.org/LoktaVolterraTutorial
Here are the lines: values = linspace(0.3, 0.9, 5) vcolors = p.cm.autumn_r(linspace(0.3, 1., len(values))) First of all, I can find no reference to autumn_r in the Matplotlib documentation. Also, using Aptana (eclipse), PyDev complains about the vcolors line with: Undefined variable from import: autumn_r Lotka.py /scipy/src/pkg line 44 PyDev Problem Secondly, I am used to using colormaps in Matlab, but not so much in Matplotlib. In Matlab, g=grey(256) produces an 256x3 matrix and each row is indexed by the numbers 1 through 256. Thus, if you have an image and pixel has a value 124, then row 124 gives an rgb triple that is used to color the pixel. However, in the case of vcolors = p.cm.autumn_r(linspace(0.3, 1., len(values))), I'm really not sure what is going on. The linspace(0.3,1,len(values)) produces len(values) equally spaced numbers from 0.3 to 1. Now, how is autumn_r(array([ 0.3 , 0.475, 0.65 , 0.825, 1. ])) make any sense? Thanks. David. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
