[size=142]we acquired the data (.dat) , stored in a folder and put the name in a (.txt) file.
Which is the command to be used in my program ROOT to take the name of the file in a (.txt) file and use it in my histogram. ?
I tried with the command below. It opened the file (.txt) but can not take the name of the file.dat
[size=142]perhaps there is better solution than that which I want to use?[/size]