Re: [Matplotlib-users] New log plot problem

[John H. <jdh...@ac...>]

>>>>> "Stephen" == Stephen Walton <ste...@cs...> writes:

    Stephen> Hi, all, Well, I've hit a new problem with the log
    Stephen> plotting issue.  Try the following commands after
    Stephen> 'ipython -pylab':

    Stephen> x=arange(25)+1 semilogx(x,x**2) hold(False)
    Stephen> semilogx(x,x**2)

    Stephen> I get an apparently unbreakable chain of "Cannot take log
    Stephen> of nonnegative value" messages for every following
    Stephen> plot(), semilog(), or loglog() command until ipython is
    Stephen> exited.  None of close(1), clf(), or cla() helps clear
    Stephen> the problem.  Only creating a new figure with figure(2)
    Stephen> and plotting to it seems to help.

rm -rf your build subdir and reinstall matplotlib 0.72.1 or CVS.  The
error string you report doesn't exist in the current code base, and I
can't reproduce your error.

JDH