From $ROOTSYS/tutorials/tree/parallelcoord.C

#include "TFile.h"
#include "TCanvas.h"
#include "TStyle.h"
#include "TRandom.h"
#include "TNtuple.h"
#include "TParallelCoord.h"
#include "TParallelCoordVar.h"
#include "TParallelCoordRange.h"

// script illustrating the use of the TParalleCoord class
//Author: Bastien Dallapiazza

Double_t r1,r2,r3,r4,r5,r6,r7,r8,r9;
Double_t dr = 3.5;
TRandom *r;

void generate_random(Int_t i) {
   r1 = (2*dr*r->Rndm(i))-dr;
   r2 = (2*dr*r->Rndm(i))-dr;
   r7 = (2*dr*r->Rndm(i))-dr;
   r9 = (2*dr*r->Rndm(i))-dr;
   r4 = (2*dr*r->Rndm(i))-dr;
   r3 = (2*dr*r->Rndm(i))-dr;
   r5 = (2*dr*r->Rndm(i))-dr;
   r6 = (2*dr*r->Rndm(i))-dr;
   r8 = (2*dr*r->Rndm(i))-dr;
}

void parallelcoord() {

   TNtuple *nt = NULL;

   Double_t s1x, s1y, s1z;
   Double_t s2x, s2y, s2z;
   Double_t s3x, s3y, s3z;
   r = new TRandom();;

   new TCanvas("c1", "c1",0,0,800,700);
   gStyle->SetPalette(1);

   nt = new TNtuple("nt","Demo ntuple","x:y:z:u:v:w");

   for (Int_t i=0; i<20000; i++) {
      r->Sphere(s1x, s1y, s1z, 0.1);
      r->Sphere(s2x, s2y, s2z, 0.2);
      r->Sphere(s3x, s3y, s3z, 0.05);

      generate_random(i);
      nt->Fill(r1, r2, r3, r4, r5, r6);

      generate_random(i);
      nt->Fill(s1x, s1y, s1z, s2x, s2y, s2z);

      generate_random(i);
      nt->Fill(r1, r2, r3, r4, r5, r6);

      generate_random(i);
      nt->Fill(s2x-1, s2y-1, s2z, s1x+.5, s1y+.5, s1z+.5);

      generate_random(i);
      nt->Fill(r1, r2, r3, r4, r5, r6);

      generate_random(i);
      nt->Fill(s1x+1, s1y+1, s1z+1, s3x-2, s3y-2, s3z-2);

      generate_random(i);
      nt->Fill(r1, r2, r3, r4, r5, r6);
   }
   nt->Draw("x:y:z:u:v:w","","para",5000);
   TParallelCoord* para = (TParallelCoord*)gPad->GetListOfPrimitives()->FindObject("ParaCoord");
   para->SetDotsSpacing(5);
   TParallelCoordVar* firstaxis = (TParallelCoordVar*)para->GetVarList()->FindObject("x");
   firstaxis->AddRange(new TParallelCoordRange(firstaxis,0.846018,1.158469));
   para->AddSelection("violet");
   para->GetCurrentSelection()->SetLineColor(kViolet);
   firstaxis->AddRange(new TParallelCoordRange(firstaxis,-0.169447,0.169042));
   para->AddSelection("Orange");
   para->GetCurrentSelection()->SetLineColor(kOrange+9);
   firstaxis->AddRange(new TParallelCoordRange(firstaxis,-1.263024,-0.755292));
}
 parallelcoord.C:1
 parallelcoord.C:2
 parallelcoord.C:3
 parallelcoord.C:4
 parallelcoord.C:5
 parallelcoord.C:6
 parallelcoord.C:7
 parallelcoord.C:8
 parallelcoord.C:9
 parallelcoord.C:10
 parallelcoord.C:11
 parallelcoord.C:12
 parallelcoord.C:13
 parallelcoord.C:14
 parallelcoord.C:15
 parallelcoord.C:16
 parallelcoord.C:17
 parallelcoord.C:18
 parallelcoord.C:19
 parallelcoord.C:20
 parallelcoord.C:21
 parallelcoord.C:22
 parallelcoord.C:23
 parallelcoord.C:24
 parallelcoord.C:25
 parallelcoord.C:26
 parallelcoord.C:27
 parallelcoord.C:28
 parallelcoord.C:29
 parallelcoord.C:30
 parallelcoord.C:31
 parallelcoord.C:32
 parallelcoord.C:33
 parallelcoord.C:34
 parallelcoord.C:35
 parallelcoord.C:36
 parallelcoord.C:37
 parallelcoord.C:38
 parallelcoord.C:39
 parallelcoord.C:40
 parallelcoord.C:41
 parallelcoord.C:42
 parallelcoord.C:43
 parallelcoord.C:44
 parallelcoord.C:45
 parallelcoord.C:46
 parallelcoord.C:47
 parallelcoord.C:48
 parallelcoord.C:49
 parallelcoord.C:50
 parallelcoord.C:51
 parallelcoord.C:52
 parallelcoord.C:53
 parallelcoord.C:54
 parallelcoord.C:55
 parallelcoord.C:56
 parallelcoord.C:57
 parallelcoord.C:58
 parallelcoord.C:59
 parallelcoord.C:60
 parallelcoord.C:61
 parallelcoord.C:62
 parallelcoord.C:63
 parallelcoord.C:64
 parallelcoord.C:65
 parallelcoord.C:66
 parallelcoord.C:67
 parallelcoord.C:68
 parallelcoord.C:69
 parallelcoord.C:70
 parallelcoord.C:71
 parallelcoord.C:72
 parallelcoord.C:73
 parallelcoord.C:74
 parallelcoord.C:75
 parallelcoord.C:76
 parallelcoord.C:77
 parallelcoord.C:78
 parallelcoord.C:79
 parallelcoord.C:80
 parallelcoord.C:81