Re: [Gnuplot-py-users] plotting

[Michael H. <mh...@al...>]

Zoe Cournia wrote:
> I am trying to plot a series of files with python and gnuplot named
> sequentially as:
> 
> temp/spectra1.dat
> temp/spectra2.dat
> temp/spectra3.dat ..... and so on
> 
> I am generating each of these files in a loop and try to open them and
> store each file in a postscript file as:
> 
>> for i in range(1,detectors):
>>     data = open('temp/spectra'+str(i)+'.dat','r')
>>     g.plot(data)
>>     g.hardcopy('gp_test'+str(i)+'.ps', enhanced=0, color=1)
>>     g.q

To plot a file, you don't open the file using Python but rather pass the
plot method a Gnuplot.File object, like

    g.plot(Gnuplot.File('temp/spectra'+str(i)+'.dat'))

With that change, I think it should work.

(Of course, you could alternatively open the file using python, read the
data into a python array, then plot the array, but that approach doesn't
have any advantages unless you want to process the data before plotting it.)

Michael