Michael Hearne wrote: > Is it possible to use multiple conditionals with the pylab.find() function? > > For example, in Matlab, I can do the following: > > x = rand(1,10); > i = find(x > 0.5 & x < 0.9); %returns the indices between 0.5 and 0.9 > > In Python: (ipython -pylab) > x = rand(1,10) > > None of the following approaches work: > #i = find(x > 0.5 and x < 0.9) > #i = find(x > 0.5 && x < 0.9) > #i = find(x > 0.5 & x < 0.9) > > I'm pretty certain there is some other way to do this using a numpy > method, and if that's all there is, then I will happily use it. > > However, if the goal of the pylab module is to achieve (some level of) > compatibility with Matlab, then may I suggest this sort of functionality > be added to the pylab.find() function? > > Thanks, > > Mike >
Mike: Use numpy.logical_and/numpy.logical_or for elementwise logical operations. In your case, find(logical_and(x>0.5,x<0.9)) works, as does using parantheses find((x > 0.5) & (x < 0.9)) -Jeff ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
