Good afternoon,

Could you please tell me what is the difference between the calculation of the R-factor and the NSS ?

I found that R-factor is equal to : sum((data - fit)^2)/sum(data^2) and
NSS = sum((data - fit)^2)/sum(data^2)*100

But when I compare the R-factor obtained by Athena and the NSS divided by 100 (calculated by myself) I didn't find the same results.

Did I make a mistake somewhere.

Thank you for your answer.

Kind regards

Marine Albertelli
PhD student
2 av du Président Pierre Angot
64000 Pau FRANCE

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