PlotUtils.C File Reference

Plotting utilities. More...

#include <TH1D.h>
#include <TF1.h>
#include <TMath.h>
#include <TGraphErrors.h>

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Functions
static Double_t	FunctionCrystalBall (Double_t *x, Double_t *par)
static Double_t	FunctionGaussPol3 (Double_t *x, Double_t *par)
static Double_t	FunctionGaussPol2 (Double_t *x, Double_t *par)
static Double_t	FunctionGaussPol1 (Double_t *x, Double_t *par)
static Double_t	FunctionGaussPol0 (Double_t *x, Double_t *par)
static Double_t	FunctionTruncatedPolEta (Double_t *x, Double_t *par)
static Double_t	FunctionTruncatedPolPi0 (Double_t *x, Double_t *par)
static Double_t	GetFractionError (Double_t num, Double_t den, Double_t numErr, Double_t denErr)
static TGraphErrors *	DivideGraphs (TGraphErrors *gNum, TGraphErrors *gDen)
static void	GetRangeIntegralAndError (TH1D *h, Int_t binMin, Int_t binMax, Double_t &integral, Double_t &integralErr)
static void	GetRangeIntegralAndError (TH1D *h, Float_t minX, Float_t maxX, Double_t &integral, Double_t &integralErr)
void	RemovePointsOutOfRangeOrLargeErrorFromGraph (TGraphErrors *graph, Double_t min, Double_t max, Float_t errFraction=0.5, Float_t value=-1, Float_t valueErr=0)
static void	ScaleBinBySize (TH1D *h)
	Scale histogram bins by its size. More...
void	GetCanvasColRowNumber (Int_t npad, Int_t &ncol, Int_t &nrow, Bool_t square=kFALSE)

Detailed Description

Plotting utilities.

Macro that containes useful small methods that can be used in plotting macros

Author

Gustavo Conesa Balbastre Gusta.nosp@m.vo.C.nosp@m.onesa.nosp@m..Bal.nosp@m.bastr.nosp@m.e@ce.nosp@m.rn.ch, (LPSC-CNRS)

Definition in file PlotUtils.C.

Function Documentation

static TGraphErrors* DivideGraphs ( TGraphErrors *  gNum, TGraphErrors *  gDen  )

static

Divide 2 TGraphErrors

Returns

TGraphError result of division

Parameters

gNum	TGraphError numerator
gDen	TGraphError denominator

Definition at line 151 of file PlotUtils.C.

Referenced by CompareInvMassGraphs(), GetFractionError(), and PlotGraphs().

static Double_t FunctionCrystalBall ( Double_t *  x, Double_t *  par  )

static

Crystal ball function. Fitting function.

Definition at line 25 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionGaussPol0 ( Double_t *  x, Double_t *  par  )

static

Gaussian plus constant function. Fitting function.

Definition at line 84 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionGaussPol1 ( Double_t *  x, Double_t *  par  )

static

Gaussian plus polinomial order 1 function. Fitting function.

Definition at line 72 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionGaussPol2 ( Double_t *  x, Double_t *  par  )

static

Gaussian plus polinomial order 2 function. Fitting function.

Definition at line 60 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionGaussPol3 ( Double_t *  x, Double_t *  par  )

static

Gaussian plus polinomial order 3 function. Fitting function.

Definition at line 48 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionTruncatedPolEta ( Double_t *  x, Double_t *  par  )

static

Truncated function in eta region. Fitting function.

Definition at line 96 of file PlotUtils.C.

Referenced by SetFitFun().

static Double_t FunctionTruncatedPolPi0 ( Double_t *  x, Double_t *  par  )

static

Truncated function in pi0 region. Fitting function.

Definition at line 112 of file PlotUtils.C.

Referenced by SetFitFun().

void GetCanvasColRowNumber	(	Int_t	npad,
		Int_t &	ncol,
		Int_t &	nrow,
		Bool_t	square = kFALSE
	)

When more than 1 frame pad in a canvas, define the number of columns or rows, depending on the total number of frames

Parameters

npad	number of pads
ncol	number of assigned columns
nrow	number of assigned rows
square	take the number of columns and rows as the square root of npad

Definition at line 304 of file PlotUtils.C.

Referenced by CalculateAndPlot(), CalculateParamChi2MCxTalkDataPerSM(), CompareTH3DataAndMCProd(), DoIt(), and GetSMNumber().

static Double_t GetFractionError ( Double_t  num, Double_t  den, Double_t  numErr, Double_t  denErr  )

static

Calculation of error of a fraction

Returns

fraction error

Parameters

num

numerator

Definition at line 132 of file PlotUtils.C.

Referenced by CalculateAndPlot(), DivideGraphs(), Efficiency(), FunctionTruncatedPolPi0(), and PrimarySpectra().

static void GetRangeIntegralAndError ( TH1D *  h, Int_t  binMin, Int_t  binMax, Double_t &  integral, Double_t &  integralErr  )

static

Get a TH1D integral and its error within a bin range

Parameters

h	TH1D
binMin	First bin of integration
binMax	Last bin of integration
integral	sum between first and last bin
integralErr	error of integral

Definition at line 208 of file PlotUtils.C.

Referenced by CalculateAndPlot(), DivideGraphs(), GetRangeIntegralAndError(), PrimarySpectra(), and ProjectAndFit().

static void GetRangeIntegralAndError ( TH1D *  h, Float_t  minX, Float_t  maxX, Double_t &  integral, Double_t &  integralErr  )

static

Get a TH1D integral and its error within a x axis range

Parameters

h	TH1D
minX	x axis minimum value
maxX	x axis maximum value
integral	sum between first and last bin
integralErr	error of integral

Definition at line 235 of file PlotUtils.C.

void RemovePointsOutOfRangeOrLargeErrorFromGraph	(	TGraphErrors *	graph,
		Double_t	min,
		Double_t	max,
		Float_t	errFraction = 0.5,
		Float_t	value = -1,
		Float_t	valueErr = 0
	)

When plotting multiple graphs, and need to set different ranges Those points with too large error or out of the desired range are set to a default value out of the plot scale

Parameters

graph	TGraphError
min	x axis minimum value
max	x axis maximum value
errFraction	If error of point is larger than a fraction of the point, it is removed
value	default value for removed point
valueErr	default error value for removed point

Definition at line 257 of file PlotUtils.C.

Referenced by CompareProductions(), and GetRangeIntegralAndError().

static void ScaleBinBySize ( TH1D *  h )

static

Scale histogram bins by its size.

Definition at line 285 of file PlotUtils.C.

Referenced by MakeDoubleRatios(), and PrimarySpectra().