Difference between revisions of "ForestErrAnal Lab 8.C"
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<pre> | <pre> | ||
| + | #include "Riostream.h" | ||
void DataRead() { | void DataRead() { | ||
TH1F *LengthHist=new TH1F("LengthHist","LengthHist",30,18.45,21.45); | TH1F *LengthHist=new TH1F("LengthHist","LengthHist",30,18.45,21.45); | ||
| Line 22: | Line 23: | ||
} | } | ||
</pre> | </pre> | ||
| + | |||
| + | |||
| + | Go Back [[TF_ErrAna_InClassLab#Lab_8]] | ||
Latest revision as of 21:27, 3 March 2017
#include "Riostream.h"
void DataRead() {
TH1F *LengthHist=new TH1F("LengthHist","LengthHist",30,18.45,21.45);
ifstream in;
in.open("length.dat");
Float_t Length,LengthErr;
Int_t Counts;
Int_t nlines=0;
while(in.good()){
in >> Length >> Counts;
if(Counts>0)
LengthErr=0.5/sqrt(Counts);
printf( " %d \t %f +/- %f \t %d\n", nlines, Length, LengthErr, Counts);
/*
*/
nlines++;
LengthHist->Fill(Length,Counts);
}
LengthHist->Draw();
}
Go Back TF_ErrAna_InClassLab#Lab_8