matplotlib-users Mailing List for matplotlib

Chris,
Why wouldn't you try to use sorted on your dictionary, construct an array from 
the result of sorted, and get the corresponding columns ?
>>>ddict={date(2008,01,01):10,date(2008,01,03):20,date(2008,01,02):30}
>>>results=numpy.array(sorted(ddict.iteritems()),)
>>>print results[:,0]
>>>[2008年01月01日 2008年01月02日 2008年01月03日]
>>>print results[:,1]
>>>[10 30 20]

Hey All,
I have a dictionary that maps date to a count (in this case the number 
of false negatives from my spam filter) and I'm wondering how to best 
plot something that looks like, say:
from datetime import date
data = {
 date(2008,03,01):10,
 date(2008,03,02):15,
 date(2008,03,03):13,
}
I'm worried about getting the dates out in order such that I get a 
straight line plot, rather than the zigzag back-and-forth line I reckon 
I'd get if I did:
dates = []
count = []
for date,count in data.items:
 dates.append(date)
 count.append(count)
plot(dates,counts)
cheers,
Chris
-- 
Simplistix - Content Management, Zope & Python Consulting
 - http://www.simplistix.co.uk

Using matplotlib 0.91.2 with the current development version of
ipython on Linux with no local matplotlibrc file, I have noticed that
setting the font weight via
rc('text',fontweight='bold')
or 
rc('font',weight='bold')
changes the relevant rc parameter but doesn't affect the weight of the
displayed fonts used in the axes or titles. Specifying the weight in
matplotlibrc does work, however. Has anyone else observed this?
	 	 		 	 	 L.G.

Alan,
 It would be nice to be able to plot and show, get feedback from the user 
(perhaps using tkinter), and then update the plot on the screen, causing you 
to have to use show twice (pylab.Draw()doesn't seem to work the way I'm 
trying to use it -- with basemaps -- ie. to get the user to see an 
intermediate map.)
 Any hints or examples showing how to use "draw" properly with basemaps? 
(The links you sent said "draw" should work.) The funny thing is that when 
I look at anim.py it says:
# turn interactive mode on for dynamic updates. If you aren't in
# interactive mode, you'll need to use a GUI event handler/timer.
 but how would one use a GUI event handler/timer?
Regards,
Kurt
Date: Wed, 2 Apr 2008 10:44:43 -0400
From: Alan Isaac <ai...@am...>
Subject: Re: [Matplotlib-users] Backend Control
To: mat...@li...
Message-ID:
	<Mah...@CA...>
Content-Type: TEXT/PLAIN; CHARSET=US-ASCII
On Wed, 2 Apr 2008, Wolfgang Kerzendorf wrote:
 > If I plot something with pylab.plot and then
 > pylab.show the first time.
http://matplotlib.sourceforge.net/faq.html#SHOW
http://matplotlib.sourceforge.net/faq.html#OO
hth,
Alan Isaac

On Thu, Apr 3, 2008 at 6:19 AM, Chris Squibb <sq...@en...> wrote:
> Hey,
>
> Up until recently I have been using mpl 0.90.1, and my application
> worked fine. Yesterday I upgraded to 0.91.2 and am now getting the
> following traceback:
Are you getting that with every mpl script, eg the canconical simple_plot.py
http://matplotlib.sf.net/examples/simple_plot.py
If not, we may need to see a little code to help diagnose what is going on
JDH

carlwenrich wrote:
> without having to increase the width of the whole chart?
Have a look at examples/major_minor_demo1.py and 
examples/major_minor_demo2.py. I guess you are looking for something 
like this ...
Manuel

Hey,
Up until recently I have been using mpl 0.90.1, and my application
worked fine. Yesterday I upgraded to 0.91.2 and am now getting the
following traceback:
 File "application.
py", line 667, in plot
 radial_plot_figure.savefig(png_file, dpi=self.dpi)
 File "C:\Python25\Lib\site-packages\matplotlib\figure.py", line 770,
in savefig
 self.canvas.print_figure(*args, **kwargs)
 File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py",
line 101, in print_figu
re
 FigureCanvasAgg.print_figure(self, filename, *args, **kwargs)
 File "C:\Python25\Lib\site-packages\matplotlib\backend_bases.py",
line 1202, in print_figure
 self.figure.canvas.draw()
 File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py",
line 65, in draw
 self.gui_repaint()
 File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wx.py",
line 987, in gui_repaint
 drawDC.DrawBitmap(self.bitmap, 0, 0)
 File "C:\Python25\Lib\site-packages\wx-2.8-msw-unicode\wx\_gdi.py",
line 3387, in DrawBitmap
 return _gdi_.DC_DrawBitmap(*args, **kwargs)
PyAssertionError: C++ assertion "hdcDst && hdcSrc" failed at
..\..\src\msw\dc.cpp(2559) in AlphaBlt(
): AlphaBlt(): invalid HDC
Does anyone have any suggestions to why this is happening?
Thanks.

Hello!
I use matplotlib in interactive mode with the wxAgg backend under 
WindowsXP. It often happens that I have quite a lot figure windows 
hidden by other windows. Then it is difficult to pick the right figure 
window from the taskbar, since their titles all start with 'Figure...' 
and additionally, I can't remember which number is which plot.
Therefor, I would like to raise all my figure windows to the top of my 
cluttered desktop... Is there a command like
f = figure()
# put the figure to the background
f.raise()
that will take the figure window to the top of all other windows?
Thanks
Lars