Columns

Hi everybody,
I have a question:
There is a method to divide a values of a column, in a ASCII file, for a value, and to create a TGraph??
for example:

k=2;
y=3
TGraph *gr = new TGraph (“Dati.txt” , " %lg/k lg/y ");
gr->Draw();

Thank very much :wink:

Hi,

I don’t think so.
Looping on the values, divide and fill a graph should be straightforward.

Danilo

root.cern/doc/master/classTGrap … a4babdd1ae