ROOT   Reference Guide
Loading...
Searching...
No Matches
mathcoreStatFunc.C File Reference

## Detailed Description

Example macro showing some major probability density functions in ROOT.

The macro shows four of them with respect to their two variables. In order to run the macro type:

#include "TF2.h"
#include "TSystem.h"
#include "TCanvas.h"
TF2 *f1a = new TF2("f1a","ROOT::Math::cauchy_pdf(x, y)",0,10,0,10);
TF2 *f2a = new TF2("f2a","ROOT::Math::chisquared_pdf(x,y)",0,20, 0,20);
TF2 *f3a = new TF2("f3a","ROOT::Math::gaussian_pdf(x,y)",0,10,0,5);
TF2 *f4a = new TF2("f4a","ROOT::Math::tdistribution_pdf(x,y)",0,10,0,5);
TCanvas *c1 = new TCanvas("c1","c1",800,650);
c1->Divide(2,2);
c1->cd(1); f1a->SetLineWidth(1);
f1a->Draw("surf1");
c1->cd(2); f2a->SetLineWidth(1);
f2a->Draw("surf1");
c1->cd(3); f3a->SetLineWidth(1);
f3a->Draw("surf1");
c1->cd(4); f4a->SetLineWidth(1);
f4a->Draw("surf1");
}
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
Definition TAttLine.h:43
The Canvas class.
Definition TCanvas.h:23
A 2-Dim function with parameters.
Definition TF2.h:29
void Draw(Option_t *option="") override
Draw this function with its current attributes.
Definition TF2.cxx:259
return c1
Definition legend1.C:41

Definition in file mathcoreStatFunc.C.