Hi Manuel, adding a "show()" to your script should resolve the problem. You don't need this using ipython in "-pylab" mode, matplotlibs interactive mode or if you save your figure to some file (savefig), but in your case you need to call the main loop.
Kind regards Matthias from the docu: Use show() The user interface backends need to start the GUI mainloop, and this is what show() does. It tells matplotlib to raise all of the figure windows and start the mainloop. Because the mainloop is blocking, you should only call this once per script, at the end. If you are using matplotlib to generate images only and do not want a user interface window, you do not need to call show. On Friday 11 December 2009 10:39:40 Manuel Wittchen wrote: > Hi, > > I want to plot data from two different datafiles. To do so I use > numpy.loadtxt two times in the script (see below). > The problem is, that I don't get any output: no resulting plot, no > errormessages or something in the terminal. > Even if I comment-out one loadtxt-row nothing happens. Even if I try > to plot something simple without using the loaded datafiles, nothing > happens. Other files with simple plots without using a datafile work > fine. > Can't find my mistake. > > Manuel > > #!/usr/bin/env python > from pylab import * > import numpy as np > > datafile1 = '/path/to/datafile1.dat' > datafile2 = '/path/to/datafile2.dat' > > TIME_F, STIRRER, O2, CO2 = np.loadtxt(datafile1, dtype='float', > comments='#', delimiter='\t', usecols=(0,1,2,3), unpack=True) > TIME_H, OD, FLUOR, BTM, GLY = np.loadtxt(datafile2, dtype='float', > comments='#', delimiter='\t', usecols=(0,1,2,3,4), unpack=True) > > plot(TIME_F, O2) ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
