[Matplotlib-users] Trouble with x-axis labeling
Hello All!
I searched for my problem and while I found similar questions this seemed to
be a unique problem.
I am creating an image that is six vertically stacked subplots and I want
only the axis of the bottom subplot to be labelled. However, as you can see
from the image I attached it's picking the wrong subplot to label. It's as
if the program is not understanding that there is one more plot. If I just
plot five plots than everything works. I'm not sure what is going wrong with
me code. It would be extremely helpful if someone could take a look.
xlabel = ["",5000,5500,6000,6500,7000,""]
plt.figure()
night = (glob.glob('*_sci.txt'))
for i in range(0,len(night)):
# Read in data for each night
wave = np.loadtxt(night[i], usecols=[0])
flux = np.loadtxt(night[i], usecols=[1])
# Create subplots
temp = 610 +i
spect = plt.subplot(temp,sharex=True)
# Draw plot
plt.plot(wave, flux, color="green")
plt.subplots_adjust(hspace = 0.001)
spect.set_autoscaley_on(False)
pylab.ylim([0,0.5e-13])
# Make y tick makers
temp = tic.MaxNLocator(3)
plt.gca().yaxis.set_major_locator(tic.MaxNLocator(prune='lower'))
plt.gca().yaxis.set_major_locator(tic.MaxNLocator(prune='upper'))
spect.yaxis.set_major_locator(temp)
# Get rid of redundant x tick labels
if i < len(night)-1:
plt.setp(spect.get_xticklabels(), visible=False)
spect.set_xticklabels(xlabel, minor=False)
plt.xlabel("Observed Wavelength $(\AA)$",fontsize=16)
--
View this message in context:
http://matplotlib.1069221.n5.nabble.com/Trouble-with-x-axis-labeling-tp40916.html
Sent from the matplotlib - users mailing list archive at Nabble.com.
--
Precog is a next-generation analytics platform capable of advanced
analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Trouble with x-axis labeling
Hi Ben, Thank you for your quick reply. That did the trick! I will into ax.label_outer() , thanks for the suggestion. - Alexa -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Trouble-with-x-axis-labeling-tp40916p40918.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Alpha keyword not working with contourf
Hi All, I'm just getting started with matplotlib. I'm trying to make a contour plot using contourf and have the different paths colored and semi transparent but the alpha keyword doesn't seem to do anything. I googled around and found that other people have had this same problem but I didn't find a solution. Here's what I'm doing - contourf(metals, U, o3, levels=[o3col-nsig*o3sig, o3col+nsig*o3sig], alpha= 0.20, colors='magenta') contourf(metals, U, o2, levels=[o2col-nsig*o2sig, o2col+nsig*o2sig], alpha= 0.20, colors='blue') contourf(metals, U, c3, levels=[c3col-nsig*c3sig, c3col+nsig*c3sig], alpha= 0.20, colors='green') To plot them all together. For reference my machine is running Mac OS X 10.6.8 and my version of matplotlib is 1.2.x Thanks! -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Alpha keyword not working with contourf
(Sorry about not replying to list before. I usually have to be pretty
vigilant about not clicking "Reply-All")
I made my figure a pdf and the transparency works fine. So thanks! Just
another quick question is it the Postscript language itself that doesn't
support transparency or the way mpl handles postscript files?
On Sat, Feb 11, 2012 at 10:48 AM, Eric Firing wrote:
> On 02/11/2012 10:30 AM, Alexa Villaume wrote:
>
>> Thanks for replying Eric.
>>
>
> (You're welcome. But please keep replies on the list when they are
> potentially useful to others, as yours is.)
>
>
>
>> Here is my minimal script -
>>
>> import matplotlib
>>
>> frompylab import*
>>
>> import numpy as np
>>
>> importos
>>
>>
>> metals=np.arange(-3.0, 1.1, 0.1)
>>
>> U=np.arange(-6.0, 0.25, 0.25)
>>
>> o3=np.zeros([25,41])
>>
>>
>> plt.contourf(metals, U, o3, levels=[o3col-nsig*o3sig], alpha=0.20,
>> colors='blue')
>>
>> plt.savefig("CoutourPlot.ps")
>>
>
> The Postscript language does not support transparency, so transparency is
> lost when you use the mpl postscript backend. The way to work around this,
> if you really need to end up with a postscript file, is to save the file as
> pdf, and then use a converter program to render that as postscript. (It
> might be a "print-to-file" or "save-as" option on your pdf display program,
> for example. I don't know what is typically available on a Mac, but Macs
> have long been pdf-friendly. In general, the need for ps files has been
> diminishing. I almost never generate them any more.)
>
> Eric
>
>
>>
>> It plots fine except except there is no transparency in colors of the
>> contour, it's like alpha is always set to 1.0
>>
>> On Sat, Feb 11, 2012 at 8:23 AM, Eric Firing > <mailto:efir...@hawaii.edu>> wrote:
>>
>>On 02/11/2012 07:40 AM, Alexa Villaume wrote:
>> > Hi All,
>> >
>> > I'm just getting started with matplotlib. I'm trying to make a
>>contour
>> > plot using contourf and have the different paths colored and semi
>> > transparent but the alpha keyword doesn't seem to do anything. I
>>googled
>> > around and found that other people have had this same problem but I
>> > didn't find a solution. Here's what I'm doing -
>> >
>> > contourf(metals, U, o3, levels=[o3col-nsig*o3sig, o3col+nsig*o3sig],
>> > alpha=0.20, colors='magenta')
>> >
>> > contourf(metals, U, o2, levels=[o2col-nsig*o2sig, o2col+nsig*o2sig],
>> > alpha=0.20, colors='blue')
>> >
>> > contourf(metals, U, c3, levels=[c3col-nsig*c3sig, c3col+nsig*c3sig],
>> > alpha=0.20, colors='green')
>> >
>> >
>> > To plot them all together.
>> >
>> > For reference my machine is running Mac OS X 10.6.8 and my version
>> of
>> > matplotlib is 1.2.x
>> >
>> > Thanks!
>>
>>Please provide a minimal but complete script that illustrates the
>>problem; describe what it is in the output that does not match your
>>expectations. e.g.,
>>
>>import numpy as np
>>import matplotlib.pyplot as plt
>>z = np.arange(20).reshape(4,5)
>>plt.contourf(z, levels=[2,3], alpha=0.2, colors='magenta')
>>plt.savefig("testcontourf_**alpha.png")
>>
>>which produces a pale magenta stripe, as expected, with mpl from github
>>master.
>>
>>Eric
>>
>
--
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] I cannot download the matplotlib
Hi Fadhah, This is the tutorial I used to install matplotlib on my computer and it was really easy to understand and follow the steps - http://www.thisisthegreenroom.com/2011/installing-python-numpy-scipy-matplotlib-and-ipython-on-lion/ If that doesn't help with your problems describe what they are more specifically and you'll be able to get better help Cheers, Alexa On Sun, Feb 12, 2012 at 5:39 PM, love ali wrote: > Dear all, > > I use the mac OS X 10.6.8 and I try to install the matplotlib but I cannot > run it in my computer so could you please help me? > > > Thanks, > > Fadhah > > -- > Try before you buy = See our experts in action! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-dev2 > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] I cannot download the matplotlib
Hi, 1.) For terminal just go to your finder and type in "terminal" in the search bar, terminal should pop up 2.) I don't think you do, you might need to change the path variable to point to the python you have. There are instructions for that in the tutorial I linked to. 3.) I'm not sure what you're asking 4.) What do you mean you can't find them on your computer? Start a terminal window and type 'python' This should bring you to the interactive python environment. Then type, 'import numpy' Does it successfully import or do you get an error message? (Also, click "Reply All" to keep this conversation to the list" - Alexa On Mon, Feb 13, 2012 at 10:11 AM, wrote: > Hi Alex , thank you so much for your help. I have some questions: > > 1- where can I find the terminal in my computer > 2- I have already had python 2.6.6 so do I need to delete it and start > again. > 3- my mac is os x 10.6.8 so do I need to clean it while it is already do > not have much download. > 4- I download the scipy ,numpy and i have these modules successfully > installed but I cannot find them in my computer. > > > So could you help me ? > > Many thanks, > > Fadh > > من جهاز الـ iPhone الخاص بي > > في 14/02/2012، الساعة 5:04 AM، كتب Alexa Villaume : > > Hi Fadhah, > > This is the tutorial I used to install matplotlib on my computer and it > was really easy to understand and follow the steps - > > > <http://www.thisisthegreenroom.com/2011/installing-python-numpy-scipy-matplotlib-and-ipython-on-lion/> > http://www.thisisthegreenroom.com/2011/installing-python-numpy-scipy-matplotlib-and-ipython-on-lion/ > > If that doesn't help with your problems describe what they are more > specifically and you'll be able to get better help > > Cheers, > Alexa > > > On Sun, Feb 12, 2012 at 5:39 PM, love ali < > a.fa...@yahoo.com> wrote: > >> Dear all, >> >> I use the mac OS X 10.6.8 and I try to install the matplotlib but I >> cannot run it in my computer so could you please help me? >> >> >> Thanks, >> >> Fadhah >> >> -- >> Try before you buy = See our experts in action! >> The most comprehensive online learning library for Microsoft developers >> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >> Metro Style Apps, more. Free future releases when you subscribe now! >> <http://p.sf.net/sfu/learndevnow-dev2> >> http://p.sf.net/sfu/learndevnow-dev2 >> ___ >> Matplotlib-users mailing list >> >> Matplotlib-users@lists.sourceforge.net >> <https://lists.sourceforge.net/lists/listinfo/matplotlib-users> >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users >> > > -- Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Labeling Contours
Hi Everybody,
I'm trying to label the contours of my contour plot following this example
-
http://matplotlib.sourceforge.net/examples/pylab_examples/contour_label_demo.html
My actual code looks like this -
import matplotlib
matplotlib.use('PDF')
from pylab import *
import numpy as np
# Define the surface of the plot
metals=np.arange(-3.0, 1.1, 0.1)
U=np.arange(-6.0, 0.25, 0.25)
# Create the arrays that the data will be stored in
o3=np.zeros([25,41])
o2=np.zeros([25,41])
c3=np.zeros([25,41])
mg2=np.zeros([25,41])
c3=np.zeros([25,41])
si2=np.zeros([25,41])
s3=np.zeros([25,41])
CS=plt.contourf(metals, U, o3, levels=[o3col-nsig*o3sig, o3col+nsig*o3sig],
alpha=0.50, colors='#f88534')
CS=plt.contourf(metals, U, o2, levels=[o2col-nsig*o2sig, o2col+nsig*o2sig],
alpha=0.50, colors='#f2f34f')
CS=plt.contourf(metals, U, c3, levels=[c3col-nsig*c3sig, c3col+nsig*c3sig],
alpha=0.50, colors='#93d3f3')
CS=plt.contourf(metals, U, mg2, levels=[mg2col-nsig*mg2sig,
mg2col+nsig*mg2sig], alpha=0.50, colors='#ff536d')
CS=plt.contourf(metals, U, s3, levels=[s3col-nsig*s3sig, s3col+nsig*s3sig],
alpha=0.50, colors='#83c460')
CS=plt.contourf(metals, U, si2, levels=[si2col-nsig*si2sig,
si2col+nsig*si2sig], alpha=0.50, colors='black')
# Trying to label the contours
fmt = {}
strs = [ 'O III', 'O II', 'C III', 'Mg II', 'S III', 'Si II']
for l,s in zip(levels, strs):
fmt[l] = s
plt.clabel(CS,levels[::2],inline=True,fmt=fmt,fontize=14)
But I get an error that says that "levels" is not defined. What should I do?
Thanks!
Alexa
--
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Labeling Contours
Hi Eric,
Thanks for your help, I'm still really new to python and matplotlib. I've
got my labels defined but now I'm having another problem with the
formatting.
I'm doing -
CS1.level=[14.07, 14.27]
plt.clabel(CS1,CS1.level[::2],inline=True,fmt='OIII',fontize=14)
Where I get a type error that says that not all string arguments are
getting converted during formatting. This is the full error,
Traceback (most recent call last):
File "ContourAttempt.py", line 81, in
plt.clabel(CS1,CS1.level[::2],inline=True,fmt='OIII',fontize=14) #
Something wrong with formmating
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/pyplot.py", line
2176, in clabel
ret = ax.clabel(CS, *args, **kwargs)
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/axes.py", line
7326, in clabel
return CS.clabel(*args, **kwargs)
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/contour.py",
line 217, in clabel
self.labels(inline,inline_spacing)
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/contour.py",
line 624, in labels
lw = self.get_label_width(lev, self.labelFmt, fsize)
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/contour.py",
line 284, in get_label_width
lev = self.get_text(lev, fmt)
File "/Users/alexavillaume/src/matplotlib/lib/matplotlib/contour.py",
line 344, in get_text
return fmt%lev
TypeError: not all arguments converted during string formatting
On Wed, Feb 15, 2012 at 10:34 AM, Eric Firing wrote:
> On 02/15/2012 10:15 AM, Alexa Villaume wrote:
> > Hi Everybody,
> >
> >
> > I'm trying to label the contours of my contour plot following this
> > example -
> >
> >
> http://matplotlib.sourceforge.net/examples/pylab_examples/contour_label_demo.html
> >
> >
> > My actual code looks like this -
> >
> >
> > import matplotlib
> >
> > matplotlib.use('PDF')
> >
> > frompylab import*
> >
> > import numpy as np
> >
> >
> > # Define the surface of the plot
> >
> > metals=np.arange(-3.0, 1.1, 0.1)
> >
> > U=np.arange(-6.0, 0.25, 0.25)
> >
> >
> > # Create the arrays that the data will be stored in
> >
> > o3=np.zeros([25,41])
> >
> > o2=np.zeros([25,41])
> >
> > c3=np.zeros([25,41])
> >
> > mg2=np.zeros([25,41])
> >
> > c3=np.zeros([25,41])
> >
> > si2=np.zeros([25,41])
> >
> > s3=np.zeros([25,41])
> >
> >
> > CS=plt.contourf(metals, U, o3, levels=[o3col-nsig*o3sig,
> > o3col+nsig*o3sig], alpha=0.50, colors='#f88534')
> >
> > CS=plt.contourf(metals, U, o2, levels=[o2col-nsig*o2sig,
> > o2col+nsig*o2sig], alpha=0.50, colors='#f2f34f')
> >
> > CS=plt.contourf(metals, U, c3, levels=[c3col-nsig*c3sig,
> > c3col+nsig*c3sig], alpha=0.50, colors='#93d3f3')
> >
> > CS=plt.contourf(metals, U, mg2, levels=[mg2col-nsig*mg2sig,
> > mg2col+nsig*mg2sig], alpha=0.50, colors='#ff536d')
> >
> > CS=plt.contourf(metals, U, s3, levels=[s3col-nsig*s3sig,
> > s3col+nsig*s3sig], alpha=0.50, colors='#83c460')
> >
> > CS=plt.contourf(metals, U, si2, levels=[si2col-nsig*si2sig,
> > si2col+nsig*si2sig], alpha=0.50, colors='black')
> >
> >
> >
> > # Trying to label the contours
> >
> >
> > fmt = {}
> >
> > strs = [ 'O III', 'O II', 'C III', 'Mg II', 'S III', 'Si II']
> >
> > for l,s in zip(levels, strs):
> >
> > fmt[l] = s
> >
> > plt.clabel(CS,levels[::2],inline=True,fmt=fmt,fontize=14)
> >
> >
> > But I get an error that says that "levels" is not defined. What should I
> do?
>
> Define levels!
>
> In your call to clabel, you are referencing a global "levels" which you
> did not define; what you did define is the levels attribute of each CS
> object. So probably what you want is something like:
>
> plt.clabel(CS, CS.levels[::2],inline=True,fmt=fmt,fontize=14)
>
> but you need one such call for each CS you create, if you want all of
> them labeled.
>
>
> Eric
>
> >
> >
> > Thanks!
> >
> > Alexa
> >
> >
> >
> >
> --
> > Virtualization& Cloud Management Using Capacity Planning
> > Cloud computing makes use of virtualization - but cloud computing
> > also focuses on allowing computing to be delivered as a service.
> > http:/
Re: [Matplotlib-users] Colobar and change axis x and y labels
Try using 'xticks' and 'yticks', those commands let you define the location
and label fo your tick marks.
Example -
xticks( arange(5), ('0', '100', '200', '300', '400') )
Where the argument in arange is the number of tick labels you're making
On Wed, Feb 15, 2012 at 10:56 AM, wrote:
> Hello,
>
> I don't know if I can ask questions concerning matplotlib problems
> in this email list ... just let me know that this is not the right
> place, if.
>
> I have an image, which I can read and put into a figure. The image
> has axis and I can even save the image. I have two issues:
>
> 1. Since it is an 512 x 512 pixel image, the x and y axis labels
> go from 0 to 500. However, I don't want these labels, I want to
> change them to, e.g., 0 .. 3400 and 0 .. 3400. How can I do this?
>
> 2. I tried to attach a color bar to the right of the image but without
> success. Have you a hint?
>
> The code can be found below, it is a rather simple one.
>
> Thanks in advance for any help.
>
> Pythphys.
>
>
> *
>
> import scipy
> import matplotlib.pyplot as plt
> import matplotlib.image as mpimg
> import numpy as np
>
> file_path = "path_to_file"
>
> # The binary file is read
> data = scipy.fromfile(file=file_path,dtype=scipy.int16)
> data = data.byteswap()
> # The file has 512 x 512 pixel
> data.shape = 512, 512
>
> # The following code works fine. However, I still need:
> #
> # - Color bar (plt.color() does not work)
> # - The x and y labels are 0 ... 500 and 0 ... 500 <= I want to change
> these labels. How.
>
>
> fig = plt.figure()
> frame = plt.subplot(111)
> frame.imshow(data)
> frame.axis()
> plt.xlabel('X (nm)')
> plt.ylabel('Y (nm)')
> plt.savefig("image")
>
>
> --
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> ___
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
--
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Fwd: Re: Colobar and change axis x and y labels
You need to use the 'imshow' function to display an image in greyscale. You
have to turn your image into an array of values and then put that array
into imshow with the colormap set to grey.
I don't know about how to do a plane fit...
On Wed, Feb 15, 2012 at 9:18 PM, wrote:
>
> Thanks Alexa and Jerzy.
>
> other questions? ... Here they are:
>
> - changing to an image grey scale only needs ... what?
>
> - I need to do a 'plane fit' of the image. Does matplotlib
> have some routine for this? Or shall I use other math libs?
>
> Thanks again.
>
>
> > Le 16/02/2012 02:20, Alexa Villaume a écrit :
> >> Try using 'xticks' and 'yticks', those commands let you define the
> >> location and label fo your tick marks.
> >>
> > This *alone* will not do, the image might be scaled badly. Add extent.
> >
> > Try this:
> >
> > fig = plt.figure()
> > frame = plt.subplot(111)
> > im=frame.imshow(data,extent=[0,3400,0,3400])
> > plt.xticks([0,3400]); plt.yticks([0,3400])
> > plt.xlabel('X (nm)')
> > plt.ylabel('Y (nm)')
> > plt.colorbar(im)
> >
> > plt.show()
> >
> > ==
> >
> > Jerzy Karczmarczuk
> > Caen, France
> >
> >
> >
>
> --
> > Virtualization& Cloud Management Using Capacity Planning
> > Cloud computing makes use of virtualization - but cloud computing
> > also focuses on allowing computing to be delivered as a service.
> > http://www.accelacomm.com/jaw/sfnl/114/51521223/
> > ___
> > Matplotlib-users mailing list
> > Matplotlib-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>
>
> --
> Virtualization & Cloud Management Using Capacity Planning
> Cloud computing makes use of virtualization - but cloud computing
> also focuses on allowing computing to be delivered as a service.
> http://www.accelacomm.com/jaw/sfnl/114/51521223/
> ___
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
--
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/___
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Axes Scaling
Hi François, Why would it be a waste to multiply the values in an array by the scaling factors? Can you provide an example of your code so everybody can get a better idea of what you're doing now? Thanks, Alexa On Fri, Feb 17, 2012 at 9:07 AM, Francois Lemery wrote: > Hi Python World! > > I currently have a 2D array: A[i][j] which I can plot very nicely > using the contourf function. However, in this plot, the axes span > from (0, i) and (0, j). > I would like to multiply each axes by a scaling constant- thereby > turning the array element values into physical quantities (distance > and time for example). > Could anyone help me with this? I've looked around, but so far the > only solution I have found is to create a new set of arrays with these > scaling factors included. I can do this, but I feel as though it > would be a waste. > > -- > Thanks! > François > > > -- > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Defining coordinates for contour plot
Hello, I'm trying to make a contour plot and I'm running into problems when specifying the coordinates for the plot. I do, #Specify coordinates of the surface delta0=1.0 delta1=0.1 x=np.arange(0.0, 6.0, delta0) y=np.arange(-1.0,3.0, delta1) #Contour the arrays. plt.contour(x, y, O3, O3Level) And I get an error that says, "TypeError: Length of x must be number of columns in z, and length of y must be number of rows." I don't understand how I'm supposed to get the coordinates for the plot that I want and make x and y the same shape as z. Any suggestions? Thanks, Alexa -- Get a FREE DOWNLOAD! and learn more about uberSVN rich system, user administration capabilities and model configuration. Take the hassle out of deploying and managing Subversion and the tools developers use with it. http://p.sf.net/sfu/wandisco-d2d-2___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Trouble with reading 2d array
Hi there, I have a 2d array that I'd like to contour. The plot isn't turning out right and I think it's because the array isn't be read in correctly. It's a 25x41 array that is in a text file. I have tried using genfromtxt and the asciitable module to read the data in and neither gives the correct output. Does anyone know of any command either specific for reading in 2d arrays or is able to handle 2d arrays? Thanks, Alexa -- Special Offer -- Download ArcSight Logger for FREE! Finally, a world-class log management solution at an even better price-free! And you'll get a free "Love Thy Logs" t-shirt when you download Logger. Secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsisghtdev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
