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Sorry to bother everyone with this post.
I am new to matplotlib and python in general and am finding a problem 
that I don't understand.
I've downloaded the scipy superpack (through easy_install) from C. 
Fonnesbeck (http://trichech.us) and receive and error when plotting 
(example below).
Personally I do not know enough to diagnose it nor fix the problem. 
what is _wx.py relate to? How am I getting C++ assertion failures, 
shouldn't this go through gcc?
Thanks for the help. Jon
system: mac os 10.5, python 2.5.1
Problem:
 >>> from pylab import *
 >>> plot([1,2,3,4])
[<matplotlib.lines.Line2D object at 0x6ae9a90>]
 >>> show()
Traceback (most recent call last):
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 1019, in 
_onPaint
 self.gui_repaint(drawDC=wx.PaintDC(self))
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 924, in 
gui_repaint
 wx.GetApp().Yield()
 File "/BinaryCache/wxWidgets/wxWidgets-11~57/Root/System/Library/ 
Frameworks/Python.framework/Versions/2.5/Extras/lib/python/wx-2.8-mac- 
unicode/wx/_core.py", line 7119, in Yield
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed 
at ../src/mac/carbon/app.cpp(1152) in Yield(): wxYield called 
recursively
Traceback (most recent call last):
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 1019, in 
_onPaint
 self.gui_repaint(drawDC=wx.PaintDC(self))
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 924, in 
gui_repaint
 wx.GetApp().Yield()
 File "/BinaryCache/wxWidgets/wxWidgets-11~57/Root/System/Library/ 
Frameworks/Python.framework/Versions/2.5/Extras/lib/python/wx-2.8-mac- 
unicode/wx/_core.py", line 7119, in Yield
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed 
at ../src/mac/carbon/app.cpp(1152) in Yield(): wxYield called 
recursively
Traceback (most recent call last):
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 1019, in 
_onPaint
 self.gui_repaint(drawDC=wx.PaintDC(self))
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 924, in 
gui_repaint
 wx.GetApp().Yield()
 File "/BinaryCache/wxWidgets/wxWidgets-11~57/Root/System/Library/ 
Frameworks/Python.framework/Versions/2.5/Extras/lib/python/wx-2.8-mac- 
unicode/wx/_core.py", line 7119, in Yield
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed 
at ../src/mac/carbon/app.cpp(1152) in Yield(): wxYield called 
recursively
Traceback (most recent call last):
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 1019, in 
_onPaint
 self.gui_repaint(drawDC=wx.PaintDC(self))
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 924, in 
gui_repaint
 wx.GetApp().Yield()
 File "/BinaryCache/wxWidgets/wxWidgets-11~57/Root/System/Library/ 
Frameworks/Python.framework/Versions/2.5/Extras/lib/python/wx-2.8-mac- 
unicode/wx/_core.py", line 7119, in Yield
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed 
at ../src/mac/carbon/app.cpp(1152) in Yield(): wxYield called 
recursively
Traceback (most recent call last):
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 1019, in 
_onPaint
 self.gui_repaint(drawDC=wx.PaintDC(self))
 File "/Library/Python/2.5/site-packages/matplotlib-0.98pre-py2.5- 
macosx-10.5-i386.egg/matplotlib/backends/backend_wx.py", line 924, in 
gui_repaint
 wx.GetApp().Yield()
 File "/BinaryCache/wxWidgets/wxWidgets-11~57/Root/System/Library/ 
Frameworks/Python.framework/Versions/2.5/Extras/lib/python/wx-2.8-mac- 
unicode/wx/_core.py", line 7119, in Yield
wx._core.PyAssertionError: C++ assertion "wxAssertFailure" failed 
at ../src/mac/carbon/app.cpp(1152) in Yield(): wxYield called 
recursively

Hello there,
I have a problem on curve fitting , would you please help me ?!
I want to to develop a application that reads a text file with 2 columns of
floating point data (as x and y) and performs a polynomial curve fit of the
data at the order specified by the end user and then provides the curve-fit
coefficients
as well as the curve fit errors.
My problem is in curve fit errors , I want to abtain Max and L2-norm of
error.
In addition I use "matplotlib.mlab module " and polyfit function for
computing polynomial curve fit.
Regards.
-- 
View this message in context: http://www.nabble.com/Curve-fitting-...-tp15369630p15369630.html
Sent from the matplotlib - users mailing list archive at Nabble.com.

Tim Michelsen wrote:
>> If you've used the binary installer, it should definitely have been 
>> installed - so if that's the case let me know and I'll investigate further.
>> 
> I used the binary installer for windows that you can download from 
> Sourceforge.net
>
> In fact, the thing is strange: I developed a program which displays a 
> map at the end. A simple one but it worked. I didn't use it for some 
> time. Today I used it again and: it didn't for anymore. I only got that 
> strange error.
>
> May I have a module conflict?
>
> Please tell be if you need more information.
>
> Kind regards & thanks for your quick response.
>
> Timmie
> 
Timmie: It's possible that the windows installer is missing the httplib2 
module - I don't have access to windows right now to check. Could you 
try installing httplib2 and let me know if that fixes it?
-Jeff
-- 
Jeffrey S. Whitaker Phone : (303)497-6313
NOAA/OAR/CDC R/PSD1 FAX : (303)497-6449
325 Broadway Boulder, CO, USA 80305-3328