I am attempting to use root to process a large data set where each entry has 8 variables. To do this, I created an ntuple using the TNtuple class and wrote it to a file. I am able to read the file back into root. However, I cannot figure out how to extract specific values from the TNtuple object. I need to access the specific values for each variable, one entry at a time. I have searched the ROOT website to no avail. Any assistance you can give would be appreciated. Thank you. David Attanasio
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