S-lang-related Bugs: get_net_counts_sum

Bugs

1. Incorrect results when multiple datasets are loaded (14 Feb 2007)

Bugs

1. Incorrect results when multiple datasets are loaded (14 Feb 2007)

   When multiple datasets are read in, get_net_counts_sum uses the backscale value incorrectly, which leads to the wrong number of counts being returned.

   Workaround:

   Use the following procedure in place of the get_net_counts_sum command. In this example, we are finding the net counts for dataset 3.

   data 1 dat1.pha
   data 2 dat2.pha
   data 3 dat3.pha
   variable foo = get_flux_str();
   foo.range = [0.5,10];
   foo.dataset = 3;
   variable tot= (get_dcounts_sum(foo).value);
   variable bgd = (get_bdcounts_sum(foo).value);
   variable bscal=(get_backscale(3));
   variable bscalebg=(get_bbackscale(3));
   variable scale3=(bscal/bscalebg);
   variable net=(tot-(bgd*scale3));
   print(net);