Create data from scratch with RDataFrame.
This tutorial shows how to create a dataset from scratch with RDataFrame
Author: Danilo Piparo (CERN)
This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Thursday, June 24, 2021 at 07:12 AM.
We create an empty data frame of 100 entries
df = ROOT.RDataFrame(100)
We now fill it with random numbers
ROOT.gRandom.SetSeed(1) df_1 = df.Define("rnd", "gRandom->Gaus()")
And we write out the dataset on disk