Re: [spyder] Re: Plotting from a script or loop with spyder

Fri, 02 Mar 2012 01:12:31 -0800

two changes that made it work for me:

import numpy as np

#import time

import pylab as p

a = np.arange(10)

for x in xrange(5):

p.figure()

p.plot(a)


1. p.plot(a) instead of p.plot(x): x is just one point so the plot looks a bit empty
2. p.figure() will force matplotlib to open a new figure

You could also save the figure (p.savefig()) than optionally close it (p.close()) before moving on the next.

Is this solving your problem?

Regards,
David


On 02/03/12 09:04, Jonatan Hjul wrote: 
I have had the same problem - but I thought it was a problem with
matplotlib and not Spyder, so I did not investigate a lot more.

/Jonatan


On 1 Mar., 19:30, Andrew Collette <[email protected]> wrote:

Hi,

I'm transitioning from using IDL to using Python for analysis.
There's one (important) thing I can't get working, which is plotting
from a loop or script.  The simplest fragment I could find that
reproduces the problem is:

    import numpy as np
    import time
    import pylab as p

    a = np.arange(10)

    for x in xrange(10):
        p.plot(x)
        time.sleep(1)

Whether in a .py file or entered manually at the console, the result
is the same: a plot window appears but is blank and frozen (won't
respond to clicks); when the loop exits, all ten plots suddenly show
up in the figure at once.

I've tried various combinations of pylab.ion(), draw(), show() with no
success.  This is a real problem as it's very common in the IDL world
to plot many time series one after another, sometimes reading input
from the user for each one.  For example, I need to manually go
through a dataset and throw out the bad traces, using input() in place
of the sleep command.

Any ideas?  I am using Spyder 2.0.13 as part of PythonXY.

Thanks,
Andrew Collette


    

    

  





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