[Matplotlib-users] Specifying X,Y Pairs For Line Plots
I need to plot trapezoids as well as left- and right-shouldered straight line plots. If I specify separate lists for the x values and their corresponding y values, the plots are generated and displayed as needed. However, I cannot specify the points as a list of tuples and have matplotlib accept them. Example: x,y = [(15,0.0), (30,1.0), (70,1.0) (85,0.0)] p.plot (x,y) Yields: Traceback (most recent call last): File trapezoid.py, line 4, in ? x,y = [(15,0.0), (30,1.0), (70,1.0) (85,0.0)] TypeError: 'tuple' object is not callable I don't see how to do this in the User Guide, but I'm sure there must be a way. Please pass me a pointer on how to accomplish this. Rich -- Richard B. Shepard, Ph.D. | IntegrityCredibility Applied Ecosystem Services, Inc.|Innovation http://www.appl-ecosys.com Voice: 503-667-4517 Fax: 503-667-8863 - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Specifying X,Y Pairs For Line Plots
On Sunday 25 November 2007 12:15:54 pm Rich Shepard wrote: x,y = [(15,0.0), (30,1.0), (70,1.0) (85,0.0)] you need a , after that (70,1.0) - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Specifying X,Y Pairs For Line Plots
On Sun, 25 Nov 2007, Darren Dale wrote: you need a , after that (70,1.0) Thanks, Darren. Not enough caffine, I guess. However, now I get: Traceback (most recent call last): File trapezoid.py, line 4, in ? x,y = [(15.0, 0.0), (30.0, 1.0), (70.0, 1.0), (85.0, 0.0)] ValueError: too many values to unpack which tells me something is still not correct. Rich -- Richard B. Shepard, Ph.D. | IntegrityCredibility Applied Ecosystem Services, Inc.|Innovation http://www.appl-ecosys.com Voice: 503-667-4517 Fax: 503-667-8863 - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Specifying X,Y Pairs For Line Plots
Rich Shepard [EMAIL PROTECTED] writes: x,y = [(15.0, 0.0), (30.0, 1.0), (70.0, 1.0), (85.0, 0.0)] ValueError: too many values to unpack You are looking for the classic unzip trick: x,y = zip(*[(15.0, 0.0), (30.0, 1.0), (70.0, 1.0), (85.0, 0.0)]) -- Jouni - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Specifying X,Y Pairs For Line Plots
On Sun, 25 Nov 2007, Jouni K Seppänen wrote: x,y = zip(*[(15.0, 0.0), (30.0, 1.0), (70.0, 1.0), (85.0, 0.0)]) Jouni, Thank you for pointing this out to me. I see that it's a builtin function similar to map that assembles the first element of each tuple into a list for the first variable, and the second element of each tuple into a list for the second variable. How useful for my plotting needs! Rich -- Richard B. Shepard, Ph.D. | IntegrityCredibility Applied Ecosystem Services, Inc.|Innovation http://www.appl-ecosys.com Voice: 503-667-4517 Fax: 503-667-8863- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] viewing my data correctly
I am wondering if there is a way to view my data with respect to the physical size of what my array element is suppose to be. I have an array that is 60 x 4000 where, the first row has a height of 1.4 the next nine has a height of 1 the next forty has a height of 0.5 the next nine has a height of 1 and the last one has a height of 1.4 When viewing this with contourf or pcolor, the image is more narrow than it should be. Is there an easy way to view this properly. Bryan -- The game of science can accurately be described as a never-ending insult to human intelligence. - João Magueijo - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Histogram on shared axis
Is it possible to have a figure with two-plots such that f(x) is plotted against x onaxis 1 (on the right) histogram of f(x) is plotted horizontally (on the right) sharing the y-axis of axis 1 (sorry, this is proportional font, ascii art) f(x) ^ | | | counts - x I want count=0 to be on the shared y-axis. Perhaps log of counts as well...so normal histogram options. Thanks. - This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] os x leopard build step-by-step
A couple of weeks ago I got a new powerbook and installed leopard on
it, and decided to keep fairly detailed notes of the process of
getting developer svn versions of some of the scientific python tools
installed (matplotlib, ipython, numpy, scipy aka MINS). The notes
will probably apply equally well for the released versions, but or
those of you embarking on getting a new OS X environment, up and
running, this might be helpful. I tried to leave nothing to the
imagination so that this would be useful to newbies, so some of this
will be a bit tedious to unix or max veterans
== get access to the terminal ==
Put the Terminal on your dock launch bar. It is in the
Applications-Utilities folder
== install gcc and other developer tools ==
Install XCode developer tools from the Leopard install CD under
optional packages. Verify the install -- check for a working gcc
gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465)
== get the mac python python release ==
The consensus is that the python that ships with Apple is broken and
should be replaced with the universal binary from the mac python
community. Go to the mac python site for downloads and install the
python 2.5 universal binary from there
http://www.pythonmac.org/packages/py25-fat/index.html
Verify the python install
/usr/local/bin/python
Python 2.5 (r25:51918, Sep 19 2006, 08:49:13)
[GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
Type help, copyright, credits or license for more information.
Make sure that /usr/local/bin is in your PATH before the Apple
defaults. I added this to the front of my default .bash_profile
PATH=/usr/local/bin:/Library/Frameworks/Python.framework/Versions/Current/bin:${PATH}
export PATH
Start a new terminal instance and verify
which python
/usr/local/bin/python
Get whatever else you want from pythonmac.org
== get svn checkouts of MINS ==
I am going to be installing most things from svn since I need
developerversions of many packages, but you may just want to get the
latest stable releases from this pythonmac site. In particular, I
always run svn ipython, numpy, scipy and matplotlibx
= ipython =
svn co http://ipython.scipy.org/svn/ipython/ipython/trunk ipython
cd ipython
sudo python setup.py install
= numpy =
svn co http://svn.scipy.org/svn/numpy/trunk numpy
cd numpy
sudo python setup.py install
= scipy =
svn co http://svn.scipy.org/svn/scipy/trunk scipy
http://scipy.org/Installing_SciPy/Mac_OS_X gives step-by-step
instructions to install the vecLib Framework (should have been
done in step one of the developer tools above) g77 compiler, the
fftw libs, and the scipy build commands, do I won't repeat them
here. The only gotcha was I got an internal compiler error
qelg.f:1: internal compiler error: vector VEC ... when I
downloaded the intel gfortran binary linked from the site, so I
grabbed the gfortran-intel-leopard-bin.tar.gz from
http://hpc.sourceforge.net/ and reinstalled using
sudo tar -xvzf gfortran-intel-leopard-bin.tar.gz -C /
and then did a clean build of scipy
= matplotlib =
matplotlib wants a GUI, so I am going to try wxpython2.8, which is
available from the pythonmac ite. Because I am interested in
installing the enthought tools which need wxython (eg traits UI) I'm
going to see if I can get a wx enabled build of mpl going. I
installed wxPython2.8-osx-unicode-2.8.3.0-universal10.4-py2.5.dmg from
the pythonmac site and am crossing my fingers that I don't find myself
entangled in wx version hell.
svn co
https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/matplotlib
matplotlib depends on libpng and freetype, both of which are provided
by the xcode package in /usr/X11R6, so I am going to point the mpl
build to that directory. sys.platform is darwin, so edit
setupext.py and add '/usr/X11R6' to the basedir dictionary for the
'darwin' key. You need to install pkgcong-0.22 from
http://pkgconfig.freedesktop.org/releases/ (just configure, sudo make
install it) so that matplotlib can use it to find an properly
configure png and freetype. You will need to set the pkgcong path
export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig
After all that, I could build mpl from svn with
python setup.py build
sudo python setup.py install
and successfully make a figure with
ipython -pylab
plot([1,2,3])
which used the wxagg backend.
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
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Re: [Matplotlib-users] os x leopard build step-by-step
Thanks for posting these instructions. Forgive me if this has already been
hashed out in previous emails, but do the instructions for iPython resolve
the readline issues in Leopard?
Thanks,
Jeremy
On Nov 25, 2007 11:12 PM, John Hunter [EMAIL PROTECTED] wrote:
A couple of weeks ago I got a new powerbook and installed leopard on
it, and decided to keep fairly detailed notes of the process of
getting developer svn versions of some of the scientific python tools
installed (matplotlib, ipython, numpy, scipy aka MINS). The notes
will probably apply equally well for the released versions, but or
those of you embarking on getting a new OS X environment, up and
running, this might be helpful. I tried to leave nothing to the
imagination so that this would be useful to newbies, so some of this
will be a bit tedious to unix or max veterans
== get access to the terminal ==
Put the Terminal on your dock launch bar. It is in the
Applications-Utilities folder
== install gcc and other developer tools ==
Install XCode developer tools from the Leopard install CD under
optional packages. Verify the install -- check for a working gcc
gcc --version
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465)
== get the mac python python release ==
The consensus is that the python that ships with Apple is broken and
should be replaced with the universal binary from the mac python
community. Go to the mac python site for downloads and install the
python 2.5 universal binary from there
http://www.pythonmac.org/packages/py25-fat/index.html
Verify the python install
/usr/local/bin/python
Python 2.5 (r25:51918, Sep 19 2006, 08:49:13)
[GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
Type help, copyright, credits or license for more information.
Make sure that /usr/local/bin is in your PATH before the Apple
defaults. I added this to the front of my default .bash_profile
PATH=/usr/local/bin:/Library/Frameworks/Python.framework/Versions/Current/bin:${PATH}
export PATH
Start a new terminal instance and verify
which python
/usr/local/bin/python
Get whatever else you want from pythonmac.org
== get svn checkouts of MINS ==
I am going to be installing most things from svn since I need
developerversions of many packages, but you may just want to get the
latest stable releases from this pythonmac site. In particular, I
always run svn ipython, numpy, scipy and matplotlibx
= ipython =
svn co http://ipython.scipy.org/svn/ipython/ipython/trunk ipython
cd ipython
sudo python setup.py install
= numpy =
svn co http://svn.scipy.org/svn/numpy/trunk numpy
cd numpy
sudo python setup.py install
= scipy =
svn co http://svn.scipy.org/svn/scipy/trunk scipy
http://scipy.org/Installing_SciPy/Mac_OS_X gives step-by-step
instructions to install the vecLib Framework (should have been
done in step one of the developer tools above) g77 compiler, the
fftw libs, and the scipy build commands, do I won't repeat them
here. The only gotcha was I got an internal compiler error
qelg.f:1: internal compiler error: vector VEC ... when I
downloaded the intel gfortran binary linked from the site, so I
grabbed the gfortran-intel-leopard-bin.tar.gz from
http://hpc.sourceforge.net/ and reinstalled using
sudo tar -xvzf gfortran-intel-leopard-bin.tar.gz -C /
and then did a clean build of scipy
= matplotlib =
matplotlib wants a GUI, so I am going to try wxpython2.8, which is
available from the pythonmac ite. Because I am interested in
installing the enthought tools which need wxython (eg traits UI) I'm
going to see if I can get a wx enabled build of mpl going. I
installed wxPython2.8-osx-unicode-2.8.3.0-universal10.4-py2.5.dmg from
the pythonmac site and am crossing my fingers that I don't find myself
entangled in wx version hell.
svn co
https://matplotlib.svn.sourceforge.net/svnroot/matplotlib/trunk/matplotlib
matplotlib depends on libpng and freetype, both of which are provided
by the xcode package in /usr/X11R6, so I am going to point the mpl
build to that directory. sys.platform is darwin, so edit
setupext.py and add '/usr/X11R6' to the basedir dictionary for the
'darwin' key. You need to install pkgcong-0.22 from
http://pkgconfig.freedesktop.org/releases/ (just configure, sudo make
install it) so that matplotlib can use it to find an properly
configure png and freetype. You will need to set the pkgcong path
export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig
After all that, I could build mpl from svn with
python setup.py build
sudo python setup.py install
and successfully make a figure with
ipython -pylab
plot([1,2,3])
which used the wxagg backend.
-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2005.
