QVectorTools Namespace Reference

Namespaces
	Random
	Useful functions for random data.

Enumerations
enum	ConvolveReturn { kConvolveFull , kConvolveValid , kConvolveSame }
	Return modes from convolutions. More...

Functions
Diana::QVector	Zeros (UInt_t size)
	Return a vector of zeros. More...
Diana::QVector	Range (UInt_t size)
	Return an indexed range from zero to size. More...
Diana::QVector	Range (UInt_t min, UInt_t max, UInt_t stride=1)
	Return an indexed range from [min,max) with stride. More...
Diana::QVector	LinSpace (Double_t min, Double_t max, UInt_t size)
	Return a linear spaced values from min to max. More...
Diana::QVector	LogSpace (Double_t min, Double_t max, UInt_t size)
	Return a log spaced values from 10**min to 10**max. More...
Diana::QVector	Convolve (const Diana::QVector &vecA, const Diana::QVector &vecB, ConvolveReturn mode=kConvolveFull)
	Discrete convolution. More...
Diana::QVector	CircularConvolve (const Diana::QVector &vecA, const Diana::QVector &vecB)
	Discrete circular convolution. More...
Diana::QVector	ConvolveFFT (const Diana::QVector &vecA, const Diana::QVector &vecB, ConvolveReturn mode=kConvolveFull)
	Convolution using FFT. More...

Enumeration Type Documentation

ConvolveReturn

enum QVectorTools::ConvolveReturn

Return modes from convolutions.

Enumerator
kConvolveFull	Return the full convolution with boundary effects.
kConvolveValid	Return only the valid samples where the two vectors fully overlap.
kConvolveSame	Return a vector with size equal to the max of the two inputs.

Definition at line 45 of file QVectorTools.hh.

Function Documentation

CircularConvolve()

Diana::QVector QVectorTools::CircularConvolve	(	const Diana::QVector &	vecA,
		const Diana::QVector &	vecB
	)

Discrete circular convolution.

Perform a discrete convolution: (f*g)[n] = sum_m f( [(n-m)+size(f)] % size(f) )g(m)

Returns the full convolution of size size(A)+size(B)-1. (With boundary effects).

Convolve()

Diana::QVector QVectorTools::Convolve	(	const Diana::QVector &	vecA,
		const Diana::QVector &	vecB,
		ConvolveReturn	mode = kConvolveFull
	)

Discrete convolution.

Perform a discrete convolution: (f*g)[n] = sum_m f(n-m)g(m)

Returns the full convolution of size size(A)+size(B)-1. (With boundary effects).

ConvolveFFT()

Diana::QVector QVectorTools::ConvolveFFT	(	const Diana::QVector &	vecA,
		const Diana::QVector &	vecB,
		ConvolveReturn	mode = kConvolveFull
	)

Convolution using FFT.

Calculate f*g using IFFT(FFT(F)*FFT(G))

Parameters

padding

pad each vector with size padding

Returns the full convolution of size size(A)+padding. (With boundary effects).

LinSpace()

Diana::QVector QVectorTools::LinSpace	(	Double_t	min,
		Double_t	max,
		UInt_t	size
	)

Return a linear spaced values from min to max.

LogSpace()

Diana::QVector QVectorTools::LogSpace	(	Double_t	min,
		Double_t	max,
		UInt_t	size
	)

Return a log spaced values from 10**min to 10**max.

Range() [1/2]

Diana::QVector QVectorTools::Range	(	UInt_t	min,
		UInt_t	max,
		UInt_t	stride = 1
	)

Return an indexed range from [min,max) with stride.

Range() [2/2]

Diana::QVector QVectorTools::Range

(

UInt_t

size

)

Return an indexed range from zero to size.

Zeros()

Diana::QVector QVectorTools::Zeros

(

UInt_t

size

)

Return a vector of zeros.