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Anyway guys, thanks a lot for the fast answer and all the good work you're
doing. :)
Johan
2008年6月10日 Eric Firing <ef...@ha...>:
> John Hunter wrote:
>
> We should consider fix the autoscaling so that tthe default view lim
>> are always open intervals that contain the data.
>>
>
> This has been on my mental list for a long time. I will look into it.
>
> Eric
>

John Hunter wrote:
> We should consider fix the autoscaling so that tthe default view lim
> are always open intervals that contain the data.
This has been on my mental list for a long time. I will look into it.
Eric

Jason Li wrote:
> Hi Jeff,
> 
> Thanks for your help in the past. Just wondering if I can ask another 
> question. This is with regard to plotting irregularly spaced geophysical 
> data.
> 
> I have been happy plotting gridded data away using matplotlib/basemap. 
> Now I want to try irregularly spaced satellite data (swath data), using 
> the confourf function. Basically to replace our IDL program to make 
> plots like this:
> 
> http://aurapar2u.ecs.nasa.gov/airscal2/Aqua_AIRS_Level1/AIRIBRAD.005/2008/001/AIRS.2008年01月01日.067.L1B.AIRS_Rad.v5.0.0.0.G08003111751.hdf.jpg 
> 
> 
> 
> I have not had much luck yet. In the following example, lat and lon are 
> 2D arrays.
> 
> map = Basemap(projection='cyl', lon_0=0, ax=ax, llcrnrlon=minLon, 
> llcrnrlat=minLat, urcrnrlon=maxLon, urcrnrlat=maxLat)
> x, y = map(lon, lat)
> cs = map.contourf(x, y, obs, levels, cmap=myPrettyCmap)
> 
> The error message:
> 
> File 
> "/usr/local//lib/python2.5/site-packages/matplotlib/toolkits/basemap/basemap.py", 
> line 2442, in contourf
> xl = xx.compress(condition).tolist()
> AttributeError: compress
> 
> 
> Do you have a good example as how to do this kind of thing?
> 
> thanks
> 
Jason: contourf expects gridded data. I think you need to use one of 
the approaches outlined in the cookbook entry
http://www.scipy.org/Cookbook/Matplotlib/Gridding_irregularly_spaced_data
to grid your data, then plot it.
If you'd like to send me a sample of the data, I can show you what I mean.
-Jeff
-- 
Jeffrey S. Whitaker Phone : (303)497-6313
Meteorologist FAX : (303)497-6449
NOAA/OAR/PSD R/PSD1 Email : Jef...@no...
325 Broadway Office : Skaggs Research Cntr 1D-113
Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg

On Tue, Jun 10, 2008 at 10:32 AM, Johan Mazel <joh...@gm...> wrote:
> This is exactly what I wanted.
> Thanks a lot.
> I just wanted to know wether it was possible to add a little margin for the
> y axes because I can't see the highest point of the curve since it's on the
> edge of the subplot.
> Anyway, thanks a lot for the good work.
Yes, just set the xlim or ylim as desired
xlim(-5,5)
ylim(-6,10)
We should consider fix the autoscaling so that tthe default view lim
are always open intervals that contain the data.
JDH

This is exactly what I wanted.
Thanks a lot.
I just wanted to know wether it was possible to add a little margin for the
y axes because I can't see the highest point of the curve since it's on the
edge of the subplot.
Anyway, thanks a lot for the good work.
Johan
2008年6月10日 John Hunter <jd...@gm...>:
> On Tue, Jun 10, 2008 at 8:51 AM, Johan Mazel <joh...@gm...>
> wrote:
> > Hi
> > I display two data vectors : the first is in the subplot 2,1,1 and the
> > second in the subplot 2,1,2. Each of the data vectors have an x vector of
> > dates to display values on x axis.
> > The 2 data vectors are correlated in time and I want to show the
> > correlation.
> >
> > But the two data vectors are not aligned as I wanted them to be since the
> > data vector of subplot 2,1,2 have less element than the other one.
> >
> > I can't use the same x vector for both curves since it would force me to
> add
> > empty values in the second data vector. And I don't want to do that since
> it
> > would add useless points in my curve.
> >
> > So I need to find a way to allow me to align both data vectors on the
> > different subplots without adding point to the data vector with a smaller
> > number of elements.
>
> Does this do what you want?
>
> ax1 = subplot(211)
> ax1.plot(x1, y1)
> ax2 = subplot(212, sharex=ax1)
> ax2.plot(x2, y2)
>
> ditto for sharey if you want to share the same y axes...
>
>
> I
>

On Tue, Jun 10, 2008 at 8:51 AM, Johan Mazel <joh...@gm...> wrote:
> Hi
> I display two data vectors : the first is in the subplot 2,1,1 and the
> second in the subplot 2,1,2. Each of the data vectors have an x vector of
> dates to display values on x axis.
> The 2 data vectors are correlated in time and I want to show the
> correlation.
>
> But the two data vectors are not aligned as I wanted them to be since the
> data vector of subplot 2,1,2 have less element than the other one.
>
> I can't use the same x vector for both curves since it would force me to add
> empty values in the second data vector. And I don't want to do that since it
> would add useless points in my curve.
>
> So I need to find a way to allow me to align both data vectors on the
> different subplots without adding point to the data vector with a smaller
> number of elements.
Does this do what you want?
 ax1 = subplot(211)
 ax1.plot(x1, y1)
 ax2 = subplot(212, sharex=ax1)
 ax2.plot(x2, y2)
ditto for sharey if you want to share the same y axes...
I

Yep, that works. I thought I had tried that, but I must have done something
wrong.
Sorry for the clutter,
Mark
On Tue, Jun 10, 2008 at 4:00 PM, John Hunter <jd...@gm...> wrote:
> On Tue, Jun 10, 2008 at 8:41 AM, Tony S Yu <to...@mi...> wrote:
> > Hey Mark,
> > Actually, recalling subplot(211) seems to work for me. Strange.
>
> Yes, this is the expected behavior, you can reactivate any axes or
> subplot by simply making the same axes or subplot call (with the same
> arguments). This is discussed in the pylab tutorial section "working
> with multiple figures and axes" at
> http://matplotlib.sourceforge.net/tutorial.html#figs_and_axes
>
> JDH
>

On Tue, Jun 10, 2008 at 8:41 AM, Tony S Yu <to...@mi...> wrote:
> Hey Mark,
> Actually, recalling subplot(211) seems to work for me. Strange.
Yes, this is the expected behavior, you can reactivate any axes or
subplot by simply making the same axes or subplot call (with the same
arguments). This is discussed in the pylab tutorial section "working
with multiple figures and axes" at
http://matplotlib.sourceforge.net/tutorial.html#figs_and_axes
JDH

Hi
I display two data vectors : the first is in the subplot 2,1,1 and the
second in the subplot 2,1,2. Each of the data vectors have an x vector of
dates to display values on x axis.
The 2 data vectors are correlated in time and I want to show the
correlation.
But the two data vectors are not aligned as I wanted them to be since the
data vector of subplot 2,1,2 have less element than the other one.
I can't use the same x vector for both curves since it would force me to add
empty values in the second data vector. And I don't want to do that since it
would add useless points in my curve.
So I need to find a way to allow me to align both data vectors on the
different subplots without adding point to the data vector with a smaller
number of elements.
Thanks
Johan

Le mardi 10 juin 2008 à 09:27 -0400, Tony S Yu a écrit :
> Wow, a question I can actually answer:
> 
> ax1 = subplot(211)
> ax2 = subplot(212)
> ax1.plot([1,2,3])
> ax2.plot([4,3,2])
> ax1.plot([3,2,1])
I do prefer Tony's solution, but in a more pylab'ic (matlab'ic) way,
there is also:
gcf().get_axes()[N].plot(...)
where N is the subplot you wan to access (starting from N=0).

Hey Mark,
Actually, recalling subplot(211) seems to work for me. Strange. You 
may want to try forcing the first plot to remain before drawing the 
second:
subplot(211)
plot([1,2,3])
hold(True)
subplot(212)
plot([4,3,2])
subplot(211)
plot([3,2,1])
-Tony
On Jun 10, 2008, at 9:29 AM, Mark Bakker wrote:
> Thanks Tony -
>
> I was hoping there was a plyab-ish command.
> Like you can do Figure(1), Figure(2), and then reselect Figure(1) to 
> get access to the first figure. No such command for subplot, I 
> understand.
>
> Cheers, Mark
>
> On Tue, Jun 10, 2008 at 3:27 PM, Tony S Yu <to...@mi...> wrote:
> Wow, a question I can actually answer:
>
> ax1 = subplot(211)
> ax2 = subplot(212)
> ax1.plot([1,2,3])
> ax2.plot([4,3,2])
> ax1.plot([3,2,1])
>
> Best,
> -Tony
>
>
> On Jun 10, 2008, at 9:09 AM, Mark Bakker wrote:
>
> Hello list -
>
> I want to plot something in two subplots, then add something to the 
> first subplot.
> How do I select the first subplot after I have plotted on the second 
> subplot?
>
> For example:
> subplot(211)
> plot([1,2,3])
> subplot(212)
> plot([4,3,2])
>
> Now I want to add something to the first subplot.
> So I thought I could do subplot(211) again, but that destroys the 
> subplot.
> Any suggestions?
>
> Thanks, Mark
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
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>
>

Thanks Tony -
I was hoping there was a plyab-ish command.
Like you can do Figure(1), Figure(2), and then reselect Figure(1) to get
access to the first figure. No such command for subplot, I understand.
Cheers, Mark
On Tue, Jun 10, 2008 at 3:27 PM, Tony S Yu <to...@mi...> wrote:
> Wow, a question I can actually answer:
>
> ax1 = subplot(211)
> ax2 = subplot(212)
> ax1.plot([1,2,3])
> ax2.plot([4,3,2])
> ax1.plot([3,2,1])
>
> Best,
> -Tony
>
>
> On Jun 10, 2008, at 9:09 AM, Mark Bakker wrote:
>
> Hello list -
>>
>> I want to plot something in two subplots, then add something to the first
>> subplot.
>> How do I select the first subplot after I have plotted on the second
>> subplot?
>>
>> For example:
>> subplot(211)
>> plot([1,2,3])
>> subplot(212)
>> plot([4,3,2])
>>
>> Now I want to add something to the first subplot.
>> So I thought I could do subplot(211) again, but that destroys the subplot.
>> Any suggestions?
>>
>> Thanks, Mark
>> -------------------------------------------------------------------------
>> Check out the new SourceForge.net Marketplace.
>> It's the best place to buy or sell services for
>> just about anything Open Source.
>>
>> http://sourceforge.net/services/buy/index.php_______________________________________________
>> Matplotlib-users mailing list
>> Mat...@li...
>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>
>
>

Wow, a question I can actually answer:
ax1 = subplot(211)
ax2 = subplot(212)
ax1.plot([1,2,3])
ax2.plot([4,3,2])
ax1.plot([3,2,1])
Best,
-Tony
On Jun 10, 2008, at 9:09 AM, Mark Bakker wrote:
> Hello list -
>
> I want to plot something in two subplots, then add something to the 
> first subplot.
> How do I select the first subplot after I have plotted on the second 
> subplot?
>
> For example:
> subplot(211)
> plot([1,2,3])
> subplot(212)
> plot([4,3,2])
>
> Now I want to add something to the first subplot.
> So I thought I could do subplot(211) again, but that destroys the 
> subplot.
> Any suggestions?
>
> Thanks, Mark
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
> http://sourceforge.net/services/buy/index.php_______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users

Hello list -
I want to plot something in two subplots, then add something to the first
subplot.
How do I select the first subplot after I have plotted on the second
subplot?
For example:
subplot(211)
plot([1,2,3])
subplot(212)
plot([4,3,2])
Now I want to add something to the first subplot.
So I thought I could do subplot(211) again, but that destroys the subplot.
Any suggestions?
Thanks, Mark

On Tue, Jun 10, 2008 at 3:35 AM, Ryan May <rm...@gm...> wrote:
> John Hunter wrote:
>>
>> I posted a snapshot of the docs at:
>>
>> http://matplotlib.sourceforge.net/doc/html/index.html
>>
>
> WOW. I love the way sphinx docs look. But more importantly, great work
> you guys on improving the documentation. As long as I've been using
> matplotlib (2 1/2 years now), it's been a very powerful and
> full-featured toolkit, but the problem was knowing where to find out how
> to make it do what you want (or more often even knowing that such a
> feature existed). The examples were (and still are) a good place to
> look, but what you guys have put together here is asthetic and very
> useful, and it puts a nice public face on all the hard work you've done.
Indeed, that's the problem of many python projects (in my case sympy
...) that it's difficult to find out what it can do. But
once we switched to sphinx, I am much more motivated to write more
docs, as it looks good. :)
Ondrej

John Hunter wrote:
> 
> I posted a snapshot of the docs at:
> 
> http://matplotlib.sourceforge.net/doc/html/index.html
> 
WOW. I love the way sphinx docs look. But more importantly, great work 
you guys on improving the documentation. As long as I've been using 
matplotlib (2 1/2 years now), it's been a very powerful and 
full-featured toolkit, but the problem was knowing where to find out how 
to make it do what you want (or more often even knowing that such a 
feature existed). The examples were (and still are) a good place to 
look, but what you guys have put together here is asthetic and very 
useful, and it puts a nice public face on all the hard work you've done.
My hat off to you. Keep it up.
Ryan
-- 
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma