Re: [Matplotlib-users] Plotting from a data file
That does help. But then that means I need to reformat my data somehow? I want it so that each “voice” is plotted separately as a unique color and my legend would be Voice 1 - Voice 2 - Voice 3 - Voice 4 - Just as if I had the temperature for four different days plotted. confused On Aug 15, 2015, at 2:14 AM, Benjamin Root ben.r...@ou.edu wrote: All cbook.get_sample_data(..., asfileobj=False) does is returns the full filename path to a given file stored in our package for demonstration purposes. You can ignore that entirely. Just say fname = 'foobar.csv' and have your own csv file called foobar.csv sitting in your current working directory. plotfile() works by reading in a CSV file and plotting the columns given. So, the CSV file will need in its first line those column headers. The first one given will be for the x-axis, while the rest are for the individual lines. Does that help? Ben Root -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Plotting from a data file
I am a very lost gnuplot.py refugee. I hung in there as long as I could but sadly, gnuplotpy does not run on my machine so I managed, somehow to install new pythons, matplotlib, numpy, etc. and am up and running. Actually now trying out Canopy, which was even easier than running from the shell on OS X. I am trying to plot some data by looking through the examples, finding something close to what I need and modifying it to work for the data I want to plot but I am lost and overwhelmed. Any pointers at all would be greatly appreciated. What I want to do surely is easy but I am really new at this and have been away from python a long time. I am reading the docs as fast as I can. The task at hand: I have 4 lines that I want to plot on top of each other (different colors) and the data, rather than being generated with an algorithm in python would be read in from a file. A plot that looks close is #5 from plotfile_demo.py (seen here: http://matplotlib.org/mpl_examples/pylab_examples/plotfile_demo_04.png http://matplotlib.org/mpl_examples/pylab_examples/plotfile_demo_04.png) but that is confusing as it seems to open some file that I can’t seem to find in my install called 'msft.csv' and I am not sure the way it is doing the plot is all that customizable as the code for it is tiny and the routine it calls seems to do a lot of formatting automatically. The easiest way to explain what need to do is to give a simplified task that is analogous, such as plot 4 individual simultaneous lines to show how they overlap and intersect and also their global motion, much like showing, say, the movement and relationship of distinct musical lines in an 4 voice choir(SATB) piece (that isn’t what I am doing but it is darned close). In short I want to have a data file that has: event_start_time, event_duration, frequency_value(for now midi will do), voice (perhaps specified with a number like: 1=soprano, 2=alto, 3=tenor, 4=bass each voice in a different color) So the data would like so (quick totally random at the moment): 0.0, 2.5, 60, 1 2.0, 1.5, 62, 4 4.0, 5.0, 64, 2 6.0, 3.5, 65, 3 8.0, 1.5, 67, 1 10.0, 2.0, 69, 4 12.0, 5.5, 71, 3 14.0, 3.0, 70, 2 16.0, 2.0, 72, 1 18.0, 1.0, 74, 4 20.0, 0.5, 75, 3 22.0, 1.5, 77, 2 24.0, 0.5, 79, 1 The legend just like in the above example and the x axis would be time and y axis frequency. Then I would have to figure out tic values and all that. I have been away from the whole world of python for a long while but I used to do this with great easy and flexibility in gnuplot.py even if the graphs did not look as lovely as these matlabplotlib ones do but this package is really new to me and I am somewhat overwhelmed by the enormity of matlabplotlib. Very sorry for such a newbie query but I feel like if i could get this going I would at least know which aspects of the package I need to read up on. -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Plotting from a data file
Hi,
That doesn’t work. Just having my own msft.csv file in my directory doesn't
change anything as it is still pointing to some other msft.csv someplace on my
computron. (what and where is this file?)
I also have never opened a file this way. I had prevously just used something
like:
for l in open(filename).readlines():
l = l.strip().split()
data.append([float(l[0]), float(l[1]), float(l[2]), int(l[3])])
values = [1,2,3,4]
-
I think ithis is just some example file that gets installed some place so that
the examples work?
What does asfileobj=False do?
Goodness the whole world of Python has radically changed in the short time I
have been out of the game.
On Aug 15, 2015, at 1:50 AM, Christian Alis iana...@gmail.com wrote:
The sample code reads data from msft.csv. If you enter your data into
a text editor and save it as msft.csv in python's current working
directory, then the following minimal code (pruned from plotfile_demo)
should work:
from pylab import plotfile, show, gca
import matplotlib.cbook as cbook
fname = cbook.get_sample_data('msft.csv', asfileobj=False)
#test 5; single subplot
plotfile(fname, ('date', 'open', 'high', 'low', 'close'), subplots=False)
show()
--
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Re: [Matplotlib-users] [matplotlib-devel] I have a Mac!
At 12:11pm -0400 Fri, 16 Aug 2013, Matthew Brett wrote: We've got 5 macs running OSX 10.4 through 10.8 for us, you'd be welcome to remote access to those, and we'd be happy to run builds for you. Paul Ivanov has or will have access to the buildbot master and all the slaves. We also have an XP and Windows 7 64 bit machine you are welcome to use. Bless you for supporting OS X prior to 10.6! My family still has a quite functional OS X 10.5 machine that we should update but can't for various (less than stellar, but unfortunately real) reasons. I'm chagrined that Apple et al. no longer supports 10.5. I'm sure others feel similarly about their 10.4- machines. On the other hand, no one would blame a development team that decided not to support what even Apple does not support. Cheers, Kevin -- Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with 2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031iu=/4140/ostg.clktrk ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] zig-zag to represent suppressed 0 on axis?
At 4:20pm -0400 Sun, 07 Apr 2013, Francesco Montesano wrote: Il giorno 07/apr/2013 21:03, Kevin Hunter Kesling ha scritto: On the other hand, I'm still such a noob at Matplotlib ... is there a way to have one of the subplots take up more than its default 50% allotment? you can give a look at the last two plots in this example http://matplotlib.org/examples/pylab_examples/demo_tight_layout.html or use plot.axes providing the rectangle that you want That is closer to what I want, but still not there. I was finally able to find something that fit the bill to 95% of what I want: http://matplotlib.1069221.n5.nabble.com/Proposal-for-Broken-Axes-td38050.html The first post by 'klukas' does exactly what I asked for. It's a zig-zag on the Y-axis to show that what is graphed is not continuous, and unlike the various official examples, the zig-zag placement is user-specifiable, as opposed to exactly halfway between the top and bottom. The only thing I have yet to figure out how to do is to simultaneously have a zig-zag on the X axis as well -- an artifact of how these zig-zags must be created via multiple axes on the same figure, rather than as built in to the axis artist. For googleability: The above linked graph code enables for matplotlib: - suppressed zeros on the Y-axis of an XY plot - showing suppressed data on the Y-axis - lightning bolt symbol on the Y-axis - zig-zag on the Y-axis - a broken Y-axis Thanks for your pointers, Francesco, as they helped me to fine-tune my Google search terms. And thank you, Klukas, whoever you are. Cheers, Kevin -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] zig-zag to represent suppressed 0 on axis?
Hullo Matplotlib List, I'm looking for a way to represent on an X-Y graph the fact that an axis does not start from the origin. When drawing by hand, I'll use a little zig-zag, lightning bolt, or slight space on the axis in question to represent this fact, just off from where the X and Y axis lines meet. How would I go about telling Matplotlib to do this? After two hours of perusing the Axes documentation, and tooling around in an IPython shell, I appear to be striking out. If you are using a monospaced font to view this email, this may illustrate the functionality for which I'm looking: 150 || * * 145 || * * 140 || ** 135 || * 130 || / / zig zag I want || 0 0 1 2 3 4 5 6 7 8 Many thanks for any help, Kevin -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] zig-zag to represent suppressed 0 on axis?
At 2:34pm -0400 Sun, 07 Apr 2013, Francesco Montesano wrote: 2013/4/7 Kevin Hunter Kesling I'm looking for a way to represent on an X-Y graph the fact that an axis does not start from the origin. When drawing by hand, I'll use a little zig-zag, lightning bolt, or slight space on the axis in question to represent this fact, just off from where the X and Y axis lines meet. How would I go about telling Matplotlib to do this? After two hours of perusing the Axes documentation, and tooling around in an IPython shell, I appear to be striking out. If you are using a monospaced font to view this email, this may illustrate the functionality for which I'm looking: 150 || * * 145 || * * 140 || ** 135 || * 130 || / / zig zag I want || 0 0 1 2 3 4 5 6 7 8 Have you given a look at this example: http://matplotlib.org/examples/pylab_examples/broken_axis.html Damn, I clearly missed that one. And once I know what I'm looking for, my eye goes right to it. Sorry for the noise. On the other hand, I'm still such a noob at Matplotlib ... is there a way to have one of the subplots take up more than its default 50% allotment? Thanks, Kevin -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Matplotlib Slider Widget and changing colorbar threshold
I am currently trying to work on a program that will allow the user to display their dataset in the form of a colormap and through the use of sliders, it will also allow the user to adjust the threshold of the colormap and thus update the colormap accordingly. The best to describe this would be through the use of a picture: [1]: http://i.stack.imgur.com/1T9Qp.png This image shows how the colorbar should look before (the image on the left) and after (the image on the right) the adjustment. As the threshold values of the colrobar are changed, the colormap would be updated accordingly. Now I am mainly using matplotlib and I found that matplotlib does support some widgets, such as a slider. However the area I need help in is devising a piece of code which will update the colorbar and colormap (like the way shown in the picture above) when the slider is adjusted. I was wondering if anyone has done this before and might have a piece of code they would be willing to share and might have pointers as to how this can be achieved. -- View this message in context: http://matplotlib.1069221.n5.nabble.com/Matplotlib-Slider-Widget-and-changing-colorbar-threshold-tp40654.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Where did the list of methods go?
I noticed that the list of matplotlib.pyplot methods has moved on the website. I used to rely on it for quick information, but now Google doesn't even return it easily. For the record, the information now seems to be at http://matplotlib.org/api/pyplot_summary.html. Kevin -- Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] who (F/OSS science) uses matplotlib?
At 8:15pm -0400 Sun, 03 Jun 2012, Josef wrote: On Sun, Jun 3, 2012 at 7:41 PM, Kevin Hunter wrote: I've just spent 20 minutes of searching with various terms and no luck finding even one answer: What open source projects use matplotlib? Maybe scanning the Debian required and recommended dependencies might be informative. (I wouldn't know how to do it.) This is a good idea. Heh, one that requires more time investment than I was hoping after a simple search, but a good idea nonetheless. Thanks, Kevin -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] who (F/OSS science) uses matplotlib?
At 10:47pm -0400 Sun, 03 Jun 2012, Tom Dimiduk wrote: Very few people outside my group use it at the moment, but that looks to be changing at least a bit. I will hopefully get a paper out about the code by the end of the summer. I'm in a similar boat with the research on which I'm working, paper and all. I don't know if folks will end up using it or not, but at least it is available (github), if not well advertised to the (decidedly small) niche of folks who would be interested. Cheers, Kevin -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] who (F/OSS science) uses matplotlib?
At 3:31pm -0400 Mon, 04 Jun 2012, Michael Droettboom wrote: This is one of the big challenges of open science right now, in my opinion, is how to better share the *applications* for science rather than just the *libraries*. This is a good point. I've had similar observations but haven't been able to voice this particular facet, and certainly not so succinctly. One thought I had, assuming John Hunter et al. would be open to it, is basically having a Who uses matplotlib? section on the website. Good for one-off cases like my question two days ago, and also good for general project evangelism. Cheers, Kevin -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] who (F/OSS science) uses matplotlib?
At 10:25am -0400 Tue, 05 Jun 2012, Tom Dimiduk wrote: On 06/05/2012 10:14 AM, Kevin Hunter wrote: At 10:47pm -0400 Sun, 03 Jun 2012, Tom Dimiduk wrote: Very few people outside my group use it at the moment, but that looks to be changing at least a bit. I will hopefully get a paper out about the code by the end of the summer. I'm in a similar boat with the research on which I'm working, paper and all. I don't know if folks will end up using it or not, but at least it is available (github), if not well advertised to the (decidedly small) niche of folks who would be interested. What is your project? Heh. It didn't occur to me that I should answer my own question! :-) http://temoaproject.org/ Briefly an energy-economy optimization (EEO) model and surrounding tools. If you just learned what that means, well ... welcome to the (decidedly small) niche! Like probably anyone in this situation, I have written a bunch of little convenience tools working with images, a simple matplotlib based gui to provide richer imshow image interaction (clicking to get pixel coordinates), more user friendly wrappers around scipy functions to do what is at least the most common case for us, and things of that sort. Is any of this stuff I should be looking to upstream or split off into the start of a scientific imaging library for python? Potentially. I'm haven't explored that area for my research yet, but I *do* plan for a GUI. (Oh, but if plans were worth a nickel ...) For the types of analysis one generally (well, currently, anyway) does with EEO models, static graphics seem to be the method du jour. Thus, I'm not to the point of manipulating graphics yet, just generating various y(x) graphs with my scripts for later consumption. Unfortunately, what we (I) do with our various ad-hoc scripts is not at all integrated yet, so we are currently just a (thankful) consumer. Cheers, Kevin -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] who (F/OSS science) uses matplotlib?
Hullo List, I've just spent 20 minutes of searching with various terms and no luck finding even one answer: What open source projects use matplotlib? I'm especially interested in open source /science/ projects that use matplotlib. I got excited when I saw scienceoss.com, but I still could not find a link to an actual science project, much less an open source one. Many thanks for any pointers! Kevin -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] strange behaviour with sankey diagram (maybe a bug)
Hi Giovanni, Thanks for your report. It looks like in this case the "dip" in the large, single input caused the input label to be at the center of the diagram. You might want to try increasing the trunklength parameter. Maybe someone has ideas to make this sort of thing more automatic, but otherwise it takes some manual tweaking. I hope this helps. Kevin On 05/21/2012 11:39 AM, Giovanni wrote: Hi all! I'm experiencing a strange behaviour with sankey diagram. As you can see from the attached image, the patch label it's not positioned in the middle of the patch (as it should), but it's plotted over the first label... The code is attached also. Any hints? Thanks, Giovanni -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] matplotlib.sankey: boxes spliced into flow?
Hi Kevin, Thanks for your post. I think the short answer is that the solution will require some manual adjustments. It has been a little while since I worked with the Sankey class, but I'll try to give some detail. The entire Sankey diagram is a composite of sub-diagrams. Each sub-diagram may have its own input and output branches. The sub-diagrams are joined at matching inputs/outputs. So, based on the images you shared, I think there are several areas that will need some manual work or hacks: 1. Since the height of Page Load (first diagram) is greater than the sum of the heights of its inputs and outputs, it will be tricky. You could try creating Page Load as a sub diagram with 5 inputs and 5 outputs, where the first and last inputs/outputs are dummy branches to add the additional height. You could also add page load as an additional rectangular patch, but that would require manual placement, and it would need to be placed in the proper order to overlay Browsing loop. That might require 2 unconnected Sankey diagrams. 2. It may require tweaking or more sub-diagrams that you'd expect to get the +/- 30 or so degree angles on the Organic and Direct branches (first diagram). 3. The second diagram introduces additional complexities. The white backgrounds of the text boxes might be possible by specifying the properties of the existing text, but I'm not sure. 4. It will be necessary to manually adjust the length of the Electricity branch so that it lines up with the Steam branch (second diagram). Likewise for the Fuel and Auxiliary Fuel. That is one definite drawback of the matplotlib Sankey class as it is; where branches split and rejoin or form a circuit, manual adjustment may be necessary. 4. Finally, it may be difficult to reproduce the shading of the branches in the second diagram. I'm sorry that there's no out of the box solution. However, since matplotlib and Python is so flexible, it may be fairly straightforward to automate these additional features. I also suspect that some of the features of the diagrams may be artifacts of the particular software used--not necessarily due to the preferences of your colleague. Kevin On 03/15/2012 10:56 AM, Kevin Hunter wrote: Hullo matplotlib list, I've discovered (with pleasure!) that matplotlib has recently learned how to create Sankey diagrams. Thank you Kevin and Yannick! One of my less-technically inclined fellow graduate students is searching for his toolset of choice for generating these suckers, and is currently looking at Stan. As I'm an open-source advocate I'd love to be able to say, you can do this with X, where X in this case is clearly matplotlib. Specifically, I've not heavily used matplotlib before, and from the given examples I see on matplotlib.sf.net, I'm not clear on exactly the capabilities of this recently-added code. What my fellow grad student has opined would be nice for his uses would be boxes that are built into the flows, rather than just used as labels. Something like: Page Load http://modernl.com/images/diagrams/web-traffic-sankey-diagram.png Input, Gas Turbine, HRSG, Waste, BP Turbine, Output http://www.bucknell.edu/images/Depts/Facilities/sankeythumb.jpg Is this currently possible, /without/ manually adjusting the graphic? Thanks! Kevin -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] matplotlib.sankey: boxes spliced into flow?
Hullo matplotlib list, I've discovered (with pleasure!) that matplotlib has recently learned how to create Sankey diagrams. Thank you Kevin and Yannick! One of my less-technically inclined fellow graduate students is searching for his toolset of choice for generating these suckers, and is currently looking at Stan. As I'm an open-source advocate I'd love to be able to say, you can do this with X, where X in this case is clearly matplotlib. Specifically, I've not heavily used matplotlib before, and from the given examples I see on matplotlib.sf.net, I'm not clear on exactly the capabilities of this recently-added code. What my fellow grad student has opined would be nice for his uses would be boxes that are built into the flows, rather than just used as labels. Something like: Page Load http://modernl.com/images/diagrams/web-traffic-sankey-diagram.png Input, Gas Turbine, HRSG, Waste, BP Turbine, Output http://www.bucknell.edu/images/Depts/Facilities/sankeythumb.jpg Is this currently possible, /without/ manually adjusting the graphic? Thanks! Kevin -- This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Ternary Plot
Elmar, Please let me know if you have any comments or suggestions on the ternary projection. I hope that it's not too far from being worthy to pull into matplotlib. (I'd need to merge the branch with the latest development version of matplotlib.) Thanks, Kevin On 11/04/2011 07:11 AM, Elmar Werling wrote: On 03.11.2011 22:28, Joe Kington wrote: The link on Nabble is broken, so here's (I think) a fixed version. It looks like the name of the branch was changed slightly at some point. https://github.com/kdavies4/matplotlib/compare/master...ternary2 Cheers, -Joe On Thu, Nov 3, 2011 at 3:14 PM, Benjamin Root ben.r...@ou.edu mailto:ben.r...@ou.edu wrote: On Thu, Nov 3, 2011 at 2:58 PM, elmar werling el...@net4werling.de mailto:el...@net4werling.de wrote: Hi, could not found anything like plot_ternary() in the matplotlib documentation. Is there an easy to use method to plot data points and lines in a ternary plot using matplotlib? Any hint is wellcome Elmar This is a requested feature, but has not been implemented yet within matplotlib. However, some other users have created a hack to do this: http://old.nabble.com/Ternary-or-triangle-plots-td32506324.html Ben Root -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net mailto:Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users thanks - hope it will help elmar -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] 3d plots: set view angle (azimuth and elevation)
Thanks for a great library and excellent documentation. I'm using mpl_toolkits.mplot3d.Axes3D (version 0.99.0) to generate a 3D scatter plot and the web examples have been very useful so far. But I have these questions to which I can't find answers in the mailing lists or the website: a) can you programmatically set the viewing angle (azimuth and elevation)? I noticed the ax.get_proj() function, but was hoping there would be an ax.set_proj(elev=..., az=) function also. b) can you set all 6 sides of the bounding box to show up, instead of 3, but set their faces to be transparent (of course!) Thanks, Kevin -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] how to create a barh chart, right to left
I am a matplotlib newbie. I am trying to create a Population Pyramid chart, see examples here. http://bm2.genes.nig.ac.jp/RGM2/R_current/library/epicalc/man/pyramid.html I am trying to draw this as two horizontal bar charts (barh) back to back. How do I make the left chart display right to left instead of the default left to right? Also, are there examples of this type of chart drawn in matplotlib available? Thanks Kevin -- Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Leftmost column of PNG output is transparent
Maybe I'll try the latest SVN version. I'm running the version in the ubuntu 8.10 repositories, which appears to be 0.98.3 As for both contourf and pcolor, I was just testing to see that it was messed up either way, leaving one commented and one uncommented. Having them both uncommented was just a typo, but the problem persists either way. Thanks, Kevin Jae-Joon Lee wrote: I couldn't reproduce it (my output has no transparent column). I'm running the current svn. I wonder if others can reproduce it. Kevin, what happen if you only do one of the pcolor or the contourf (it is not clear why you're calling pcolor as it will be overridden by contourf)? -JJ On Mon, Mar 23, 2009 at 5:10 PM, kmilner kmil...@usc.edu wrote: Hi All, I'm trying to plot evenly grided data to tiles for google maps overlays. Each tile needs to be a 256x256 pixel PNG image, without any borders. The problem that I'm having is that the leftmost column of the resultant PNG image (saved using FigureCanvasAgg.print_figure) is transparent. My real code uses basemap because the output has to be in the mercator projection, but the sample code below is simplified to exclude it. You can view the sample image that is produced at this address: http://earth.usc.edu/ftp/kmilner/trans_test.png Any ideas? Thanks! Kevin #!/usr/bin/env python from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas from matplotlib.figure import Figure import numpy dpi = 64 pixels = 256 fig = Figure(linewidth=0, frameon=False) canvas = FigureCanvas(fig) fig.figurePatch.set_alpha(0.0) ax_bounds = [0, 0, 1, 1] ax = fig.add_axes(ax_bounds, axisbg=(1.0,1.0,0.0,0.0), frameon=False ) inches = pixels / dpi fig.set_size_inches(256 / dpi, 256 / dpi) num = 31 z = numpy.empty( (num, num) ) for x in xrange(num): for y in xrange(num): z[x, y] = x * y x, y = numpy.meshgrid( range(num), range(num) ) image = ax.pcolor(x, y, z) image = ax.contourf(x, y, z) canvas.print_figure(/tmp/trans_test.png, dpi=dpi) -- View this message in context: http://www.nabble.com/Leftmost-column-of-PNG-output-is-transparent-tp22669232p22669232.html Sent from the matplotlib - users mailing list archive at Nabble.com. -- Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] errorbar and legend(loc='best') gives error
When errorbar() and legend(loc='best') are used an error message appears. But other legend locations (e.g. 'upper left' or 'upper right') work fine. pylab.figure() pylab.errorbar(xdata,ydata,z*y_standardError,fmt='o-',label='test') pylab.legend(loc='best') pylab.show() Exception in Tkinter callback Traceback (most recent call last): File C:\Python25\lib\lib-tk\Tkinter.py, line 1403, in __call__ return self.func(*args) File C:\Python25\Lib\site-packages\matplotlib\backends\backend_tkagg.py, line 188, in resize self.show() File C:\Python25\Lib\site-packages\matplotlib\backends\backend_tkagg.py, line 191, in draw FigureCanvasAgg.draw(self) File C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py, line 358, in draw self.figure.draw(self.renderer) File C:\Python25\Lib\site-packages\matplotlib\figure.py, line 624, in draw for a in self.axes: a.draw(renderer) File C:\Python25\Lib\site-packages\matplotlib\axes.py, line 1345, in draw a.draw(renderer) File C:\Python25\Lib\site-packages\matplotlib\legend.py, line 236, in draw self._update_positions(renderer) File C:\Python25\Lib\site-packages\matplotlib\legend.py, line 579, in _update_positions ox, oy = self._find_best_position(w, h) File C:\Python25\Lib\site-packages\matplotlib\legend.py, line 463, in _find_best_position verts, bboxes, lines = self._auto_legend_data() File C:\Python25\Lib\site-packages\matplotlib\legend.py, line 378, in _auto_legend_data hlines = handle.get_lines() AttributeError: LineCollection instance has no attribute 'get_lines' Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. 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] Integrating plots with existing PyGTK application
Hi everyone,
I am a developer on a PyGTK application for Earth Science research and
education called SEATREE ( http://geosys.usc.edu/projects/seatree/wiki )
and we are trying to integrate some pylab plots.
I can successfully create and use a pylab frame/window inside of our GTK
application using the following sequence (note that all of this is
called AFTER the application has launched and the GTK main loop has
started):
-
import math
import pylab as p
import matplotlib
from matplotlib.backends.backend_gtk import FigureCanvasGTK,
NavigationToolbar
matplotlib.use('GTK')
p.figure()
//set up the figure
//connect actions using p.connect('signal name', function)
p.show()
-
Then, once I'm done with the plot and it is closed, p.close() is called.
All of that works fine, and I actually like the blocking nature of the
p.show() method (I know this probably isn't the best way since I already
have a GTK main loop going). The problem arises when I try to display
the plot again. If I just call the p.show() method for a 2nd time, it
does not block execution of my function, and the plot shows up but is
unresponsive with full CPU utilization. My main GTK window for the
application is enabled and responsive during this time.
I then tried using the following code to show the window (either both
times or just the 2nd time around):
-
for manager in Gcf.get_all_fig_managers():
manager.window.show()
-
But I get an error that is very strange, as it references Tkinter even
though I am using GTK:
-
Traceback (most recent call last):
File
/home/kevin/workspace_seatree/SEATREE/py-drivers/py-hc/flowGUI.py,
line 379, in editVisc
manager.window.show()
File /usr/lib/python2.5/lib-tk/Tkinter.py, line 1724, in __getattr__
return getattr(self.tk, attr)
AttributeError: show
-
Finally, I tried just not calling anything after p.frame() the second
time through (besides doing the signal connecting again), and this time
the plot window will show up, but signals will not be processed
(including trying to close the plot with the 'x' on the window frame).
I also tried just embedding a FigureCanvasGTK object displaying the
figure to my own gtk.Dialog object, which works for displaying the plot,
but I couldn't figure out how to get the pylab events to be processed
and connected (I need to modify the plot by clicking on parts of it). If
I could figure out the even handling, this would actually be the
preferred method of showing the plot. This is the code for this attempt:
-
self.dialog = gtk.Dialog(title=title, parent=parent, flags=
gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT)
self.canvas = FigureCanvasGTK(self.figure)
self.dialog.vbox.pack_start(self.canvas)
self.dialog.show_all()
self.dialog.show()
-
Does anyone have any suggestions? Thanks a ton for making it this far
through my long message!
Kevin Milner
P.S. see full source here: (the pylab stuff is dirty cause it's in
debugging stages)
See bottom for the p.show() call:
http://geosys.usc.edu/projects/seatree/browser/py-drivers/py-hc/flowGUI.py
Event processing/plot creation and manipulation:
http://geosys.usc.edu/projects/seatree/browser/py-drivers/py-hc/manipulate_hc.py
-
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[Matplotlib-users] autoscaling y-axis after changing xmin and xmax?
I'm using matplotlib 0.87.5. I'm working on an application that has an interface that allows the user to change xmin and xmax to focus in on portions of the dataset. I'd like the y axis to autoscale each time the xmin and/or xmax are changed. I've confirmed that autoscale_on is True, but no autoscaling occurs. What drives the y axis autoscaling? Does it look only at the data between xmin and xmax, or does it look at the whole data series? Is there a way to make autoscale do what I want, or would I need to change the data set each time to only be plotting between xmin and xmax? Kevin Horton Ottawa, Canada - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Response times of GTK vs GTKAgg backends
On 7-Sep-06, at 12:05 PM, Christopher Barker wrote: Kevin Horton wrote: I also want to note that the GTK backend is useful to some people, and hope that it will continue to be supported (I seem to recall one mention that it was little used). This is a good point. In general, the Agg back-ends produce nicer an more consistent results, and, on local machines, performance is just fine, but in a remote X-session, there are real advantages to using X for the rendering. The same probably applies to the TK and Wx back- ends also. Thanks for the explanation on the difference in these backends. I did notice many artifacts in the plots when using the GTK backend, especially when only setting xmin and xmax to only display a small portion of the data . Is this a known problem? Is there interest in correcting it, and if so, is there any information I can provide to assist, or any testing I can do? Kevin Horton Ottawa, Canada - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Response times of GTK vs GTKAgg backends
I'm developing an application for personal use on my Mac, using the GTAgg backend, which renders a series of plots in a figure in a pygtk scrolled window. I'm currently using matplotlib 0.87.3 installed via Fink. Matplotlib is performing well. Today I had occasion to log into my Mac over ssh from work. I noted that the application was extremely slow to display the plots. Running locally on my Mac, the application takes about 5 seconds to display the plots when it opens. Remotely, it took around 5 minutes (repeatable). On a whim, I tried changing to the GTK backend - now it displayed the plots in about 20 seconds, which is quite acceptable considering it is remote access over an ssh tunnel. I checked the CPU usage on both the Mac, and my work PC - the CPU usage was very, very low on both machines, so I'm not sure where the bottleneck lies. My install rights on the work PC are very restricted, so I'm using CygWin via XLiveCD, which I have copied onto the hard drive to speed it up. http://xlivecd.indiana.edu/ This poor performance when using GTKAgg isn't really a problem - I'll code a command line switch to change to the GTK backend for the few times I need remote access. I'm reporting it just in case one of the developers thinks it could be useful to troubleshoot, in case it highlights a problem in the code. I also want to note that the GTK backend is useful to some people, and hope that it will continue to be supported (I seem to recall one mention that it was little used). Thanks for matplotlib. Kevin Horton Ottawa, Canada - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] More than 9 subplots in Figure?
I'm a python newbie, using matplotlib 0.87.3. My code works, as long
as I limit myself to 9 subplots. But, I need more than 9.
Relevant parts of the code:
from matplotlib.figure import Figure
import pylab
f = Figure(figsize=(5,4), dpi=100)
plot1 = f.add_subplot((10,1,1), ylabel='Pitch (' + degreeChar + ')')
I get an error like:
Traceback (most recent call last):
File Flt_Test_Data_Review.py, line 726, in ?
create_mpl_plots()
File Flt_Test_Data_Review.py, line 246, in create_mpl_plots
plot1 = f.add_subplot((10,1,1), ylabel='Pitch (' + degreeChar +
')')
File /sw/lib/python2.4/site-packages/matplotlib/figure.py, line
472, in add_subplot
a = Subplot(self, *args, **kwargs)
File /sw/lib/python2.4/site-packages/matplotlib/axes.py, line
4316, in __init__
SubplotBase.__init__(self, fig, *args)
File /sw/lib/python2.4/site-packages/matplotlib/axes.py, line
4208, in __init__
raise ValueError('Argument to subplot must be a 3 digits long')
ValueError: Argument to subplot must be a 3 digits long
subplot accepts a tuple in other places, so I would have expected the
same behaviour here. Is this a bug that is fixed in a newer
matplotlib version, in which case I will try to upgrade. Or, is
there some other way to do my code that will work?
Thanks,
Kevin Horton
Ottawa, Canada
-
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Re: [Matplotlib-users] More than 9 subplots in Figure?
On 4 Sep 2006, at 10:54, John Hunter wrote: Kevin == Kevin Horton [EMAIL PROTECTED] writes: Kevin subplot accepts a tuple in other places, so I would have Kevin expected the same behaviour here. Is this a bug that is Kevin fixed in a newer matplotlib version, in which case I will Kevin try to upgrade. Or, is there some other way to do my code Kevin that will work? You need to either do subplot(10,1,1) or tup = 10,1,1 subplot(*tup) subplot does not accept a tuple: it either accepts and integer, eg num = 311 subplot(num) or three args: numrows, numcols, num python let's you unpack tuple with the * operator. That works. Thank you very much. Kevin Horton Ottawa, Canada - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnkkid=120709bid=263057dat=121642 ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
