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Re: [Matplotlib-users] Plotting from datafile
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From: Sayan C. <say...@gm...> - 2013-03-27 15:08:00
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Hi Steven, I am a newbie to Python and hence Matplotlib. I cannot get your point properly. Could you please redirect me to a page where the usage is demonstrated? As I can see, you're a doctoral student in Physics, it might be worthwhile to tell you that I'm trying to code a Zeldovich Approximation for a simple sinusoidal potential and want to make it evolve with varying scale factor and make an animation of it. Cheers, Sayan On 27 March 2013 19:58, Steven Boada <bo...@ph...> wrote: > Another, slightly more flexible, option is the genfromtxt function, also > in numpy. Normally you should try genfromtxt after loadtxt doesn't work. > Or, that is my normal method. > > Steven > > > On Wed Mar 27 07:16:45 2013, Sayan Chatterjee wrote: > >> Thank you very much for your prompt reply. >> >> Florian, your reply seems to be the answer to my question. I'll try >> it out. If can't figure out,I'll get back to you. >> >> >> On 27 March 2013 15:37, Florian M. Wagner <wag...@st... >> <mailto:wag...@st....**ch <wag...@st...>>> wrote: >> >> Hey Sayan, >> >> for reading in simple ASCII-Files containing your two arrays you >> should have a look at the numpy.loadtxt function. >> >> Scatter plots in matplotlib are then easily created as shown here >> http://matplotlib.org/**examples/pylab_examples/**scatter_demo.html<http://matplotlib.org/examples/pylab_examples/scatter_demo.html> >> >> For your purpose you can do something like: >> >> import os >> import numpy as np >> import matplotlib.pyplot as plt >> >> for file in os.path.listdir(): >> x, y = np.loadtxt(file, unpack=True) >> plt.scatter(x,y) >> plt.savefig(file + '.png') >> >> Cheers, >> >> Florian >> >> >> Am 27.03.2013 09:32, schrieb Sayan Chatterjee: >> >>> Dear All, >>> >>> I'm new to Matplotlib. It might be a silly question, how does one >>> plot data(not functions) in Matplotlib. >>> >>> How: >>> 1)Two arrays (X and Y) can be plotted in a scatter diagram? >>> >>> 2) or a number of data files can used to produce different plots >>> having different(sequential) name? >>> >>> Thanks in anticipation. >>> Regards, >>> Sayan >>> >>> -- >>> >>> >>> ------------------------------**------------------------------** >>> -------------- >>> *Sayan Chatterjee* >>> >>> Dept. of Physics and Meteorology >>> IIT Kharagpur >>> Lal Bahadur Shastry Hall of Residence >>> Room AB 205 >>> Mob: +91 9874513565 >>> blog: www.blissprofound.blogspot.com >>> <http://www.blissprofound.**blogspot.com<http://www.blissprofound.blogspot.com> >>> > >>> >>> Volunteer , Padakshep >>> www.padakshep.org <http://www.padakshep.org> >>> >>> >>> >>> ------------------------------**------------------------------** >>> ------------------ >>> Own the Future-Intel® Level Up Game Demo Contest 2013 >>> Rise to greatness in Intel's independent game demo contest. >>> Compete for recognition, cash, and the chance to get your game >>> on Steam. $5K grand prize plus 10 genre and skill prizes. >>> Submit your demo by 6/6/13.http://p.sf.net/sfu/**intel_levelupd2d<http://p.sf.net/sfu/intel_levelupd2d> >>> >>> >>> ______________________________**_________________ >>> Matplotlib-users mailing list >>> Matplotlib-users@lists.**sourceforge.net<Mat...@li...> <mailto: >>> Matplotlib-users@**lists.sourceforge.net<Mat...@li...> >>> > >>> https://lists.sourceforge.net/**lists/listinfo/matplotlib-**users<https://lists.sourceforge.net/lists/listinfo/matplotlib-users> >>> >> >> >> ------------------------------**------------------------------** >> ------------------ >> Own the Future-Intel® Level Up Game Demo Contest 2013 >> Rise to greatness in Intel's independent game demo contest. >> Compete for recognition, cash, and the chance to get your game >> on Steam. $5K grand prize plus 10 genre and skill prizes. >> Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_**levelupd2d<http://p.sf.net/sfu/intel_levelupd2d> >> ______________________________**_________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.**sourceforge.net<Mat...@li...> >> <mailto:Matplotlib-users@**lists.sourceforge.net<Mat...@li...> >> > >> https://lists.sourceforge.net/**lists/listinfo/matplotlib-**users<https://lists.sourceforge.net/lists/listinfo/matplotlib-users> >> >> >> >> >> -- >> >> >> ------------------------------**------------------------------** >> -------------- >> *Sayan Chatterjee* >> >> Dept. of Physics and Meteorology >> IIT Kharagpur >> Lal Bahadur Shastry Hall of Residence >> Room AB 205 >> Mob: +91 9874513565 >> blog: www.blissprofound.blogspot.com >> <http://www.blissprofound.**blogspot.com<http://www.blissprofound.blogspot.com> >> > >> >> Volunteer , Padakshep >> www.padakshep.org <http://www.padakshep.org> >> >> >> >> ------------------------------**------------------------------** >> ------------------ >> Own the Future-Intel® Level Up Game Demo Contest 2013 >> Rise to greatness in Intel's independent game demo contest. >> Compete for recognition, cash, and the chance to get your game >> on Steam. $5K grand prize plus 10 genre and skill prizes. >> Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_**levelupd2d<http://p.sf.net/sfu/intel_levelupd2d> >> >> >> ______________________________**_________________ >> Matplotlib-users mailing list >> Matplotlib-users@lists.**sourceforge.net<Mat...@li...> >> https://lists.sourceforge.net/**lists/listinfo/matplotlib-**users<https://lists.sourceforge.net/lists/listinfo/matplotlib-users> >> > > -- > > Steven Boada > > Doctoral Student > Dept of Physics and Astronomy > Texas A&M University > bo...@ph... > -- -------------------------------------------------------------------------- *Sayan Chatterjee* Dept. of Physics and Meteorology IIT Kharagpur Lal Bahadur Shastry Hall of Residence Room AB 205 Mob: +91 9874513565 blog: www.blissprofound.blogspot.com Volunteer , Padakshep www.padakshep.org |
