from scipy import * data=io.array_import.read_array('tgdata.dat') plotfile='tgdata.png' gplt.plot(data[:,0],data[:,1],'title "Weight vs. time" with points') gplt.xtitle('Time [h]') gplt.ytitle('Hydrogen release [wt. %]') gplt.grid("off") gplt.output(plotfile,'png medium transparent picsize 600 400')