ForestErrAnal Lab 8.C - Revision history

Foretony at 21:27, 3 March 2017

2017-03-03T21:27:46Z

Oborn at 17:28, 22 February 2010

2010-02-22T17:28:47Z

Oborn at 17:28, 22 February 2010

2010-02-22T17:28:20Z

Oborn: Created page with '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...'

2010-02-22T17:28:06Z

Created page with '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...'

New page

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();
}

← Older revision		Revision as of 17:28, 22 February 2010
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	}		}
	</pre>		</pre>
		+
		+
		+	Go Back [[TF_ErrAna_InClassLab#Lab_8]]

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 <pre>
 void DataRead() {
    TH1F *LengthHist=new TH1F("LengthHist","LengthHist",30,18.45,21.45);