using rplot_counts with get_combined

Hi:

I'm using combine_dataset to combine HEG & MEG +-1
orders, so my script goes like:

match_dataset_grids([1,2,3,4]);
variable g = combine_datasets([1:4]);
group_data([1:4],2);
variable d = get_combined(g,&get_data_counts);

now, if I type 

rplot_counts(g);

I got the same plot than if I use

rplot_counts(1);

where 1 is the +1HEG spectrum. so it seems that
rplot_counts is not understanding g as a combination
of different orders. Any hint about this?

-Also, is the residual from rplot_counts defined
equally to XSPEC delchi or chi ?

Thanks  a lot!
Juan



########################################################
GERARDO JUAN MANUEL LUNA
Instituto de Astronomia, Geofisica e Ciencias Atmosfericas
Universidade de Sao Paulo
Brasil
05508-900
########################################################


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