i’m using this TGraph constructor
TGraph(const char *filename, const char *format, Option_t *)
(and the corresponding TGraphErrors)
in order to read data present on a text file. However i would like sometime to perform some modifications to one of the column that is going to be read. Is there a way to do so during the readout procedure?
Example: if i have 3 column on the text file i would like to multiply column 3 by column 2 and divide by a constant.
Thanks in advance,