df021_createTGraph¶

Fill a TGraph using RDataFrame.

Author: Enrico Guiraud, Danilo Piparo (CERN), Massimo Tumolo (Politecnico di Torino)
This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Monday, March 27, 2023 at 09:46 AM.

In [1]:

import ROOT

ROOT.ROOT.EnableImplicitMT(2)
d = ROOT.RDataFrame(160)

Welcome to JupyROOT 6.29/01

Create a trivial parabola

In [2]:

dd = d.Alias("x", "rdfentry_").Define("y", "x*x")

graph = dd.Graph("x", "y")

This tutorial is ran with multithreading enabled. The order in which points are inserted is not known, so to have a meaningful representation points are sorted.

In [3]:

c = ROOT.TCanvas()
graph.Sort()
graph.Draw("APL")
c.SaveAs("df021_createTGraph.png")

print("Saved figure to df021_createTGraph.png")

Saved figure to df021_createTGraph.png

Info in <TCanvas::Print>: png file df021_createTGraph.png has been created

Draw all canvases

In [4]:

from ROOT import gROOT 
gROOT.GetListOfCanvases().Draw()