usage: 
open either Matlab or Octave
then call the line:
flux = flux_calc(file_name)

Where file_name is a name of a radiance photometry.
Note that the scale is in [m] and not [mm]


for example try:
flux = flux_calc('Mundial_1KW_V1.rad')


after 10/20 seconds, go to the dx folder and lauch opendx.
here select the Photometry network.
You should get a nice chart and flux plotted.

