matplotlib-devel Mailing List for matplotlib

>>>>> "Perry" == Perry Greenfield <pe...@st...> writes:
 Perry> I keep forgetting that unless the clf() is done, that all
 Perry> the previous data elements are still present. And thus the
 Perry> error will repeat. (Waiting for that feature to allow
 Perry> autoclearing in interactive mode I guess)
I added a hold command and axes.hold property to matplotlibrc. In
CVS. 
Next release is due out in a day or two (a couple of small bugs to
squash). If any of you can test CVS that would be great - there have
been a lot of changes since 0.53 that touch virtually every part of
matplotlib (see the CHANGELOG in the sdist). Here is a snapshot if
you don't have ready CVS access
http://nitace.bsd.uchicago.edu:8080/files/share/matplotlib-0.54c.tar.gz
- sorry no win32 snapshots at the ready.
Todd, do you still want to build a numarray version? If so, I'll send
you an sdist that I use to build my system and you can build for
numarray and send me back the exe.
JDH

I keep forgetting that unless the clf() is done, that
all the previous data elements are still present.
And thus the error will repeat. (Waiting for that
feature to allow autoclearing in interactive mode I guess)
Perry

after doing a clf(), it works. I thought I had started with
a clean session. Hmmm. I also notice that if I do something like
loglog(arange(10.), arange(10.)) I get an error as I should,
and then try againg with my first example, it still fails with
the same error message. Somehow it the first error causes it
to continue to fail unless clf() is performed.
Perry
 

I must be doing something stupid, but I can't get the simplest
loglog to work. For example:
>>> x = arange(10.) + 2
>>> y = x**2
>>> y
array([ 4., 9., 16., 25., 36., 49., 64., 81., 100.,
121.])
>>> loglog(x,y)
Traceback (most recent call last):
[...]
 xt = self.transx.positions(x)
 File "C:\Python23\Lib\site-packages\matplotlib\transforms.py", line 621,
in po
sitions
 return scale*(self.func(x)-minin) + self._boundout.min()
 File "C:\Python23\Lib\site-packages\matplotlib\transforms.py", line 520,
in lo
gwarn
 raise ValueError('Cannot take log of non-positive data')
ValueError: Cannot take log of non-positive data
>>>
Perry
(v0.53.1 on windows 2000)