Re: [Gnuplot-py-users] plotting

[Zoe C. <zoe...@iw...>]

Dear Michael,

Thank you for the answer. Indeed it works like this now.
The structure of the files however, require that the command in gnuplot is:

plot 'temp/spectra9.dat' u 1:2

otherwise the file cannot be plotted (bad data in line 0)
so is there a way to incorporate the 'u 1:2' command in the g.plot 
command that you siggest?

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

thank you
Zoe


Michael Haggerty wrote:

>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
>
>
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