SFTutils.h File Reference

Author:: Reinhard Prix, Badri Krishnan Utility functions for handling of SFTtype and SFTVectors

#include <stdarg.h>
#include <lal/LALDatatypes.h>
#include <lal/DetectorSite.h>
#include <lal/Date.h>
#include <lal/SkyCoordinates.h>
#include <lal/RngMedBias.h>
#include <lal/LALRunningMedian.h>

Include dependency graph for SFTutils.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures

struct COMPLEX8FrequencySeriesVector

A vector of COMPLEX8FrequencySeries. More...

struct REAL8FrequencySeriesVector

A vector of REAL8FrequencySeries. More...

struct tagMultiSFTVector

A collection of SFT vectors -- one for each IFO in a multi-IFO search. More...

struct MultiPSDVector

A collection of PSD vectors -- one for each IFO in a multi-IFO search. More...

struct MultiNoiseWeights

One noise-weight (number) per SFT (therefore indexed over IFOs and SFTs. More...

struct MultiREAL4TimeSeries

A collection of (multi-IFO) time-series. More...

struct LIGOTimeGPSVector

A vector of 'timestamps' of type LIGOTimeGPS. More...

struct MultiLIGOTimeGPSVector

A vector of 'timestamps' of type LIGOTimeGPS. More...

Defines

#define SFTUTILS_ENULL   1

#define SFTUTILS_ENONULL   2

#define SFTUTILS_EMEM   3

#define SFTUTILS_EINPUT   4

#define SFTUTILS_EFUNC   6

#define SFTUTILS_MSGENULL   "Arguments contained an unexpected null pointer"

#define SFTUTILS_MSGENONULL   "Output pointer is not NULL"

#define SFTUTILS_MSGEMEM   "Out of memory"

#define SFTUTILS_MSGEINPUT   "Invald input parameter"

#define SFTUTILS_MSGEFUNC   "Sub-routine failed"

Typedefs

typedef COMPLEX8FrequencySeries SFTtype

A so-called 'SFT' (short-Fourier-transform) will be stored in a COMPLEX8FrequencySeries.

typedef COMPLEX8FrequencySeriesVector SFTVector

The corresponding vector-type to hold a vector of 'SFTs'.

typedef REAL8FrequencySeriesVector PSDVector

Special type for holding a PSD vector (over several SFTs).

typedef tagMultiSFTVector MultiSFTVector

A collection of SFT vectors -- one for each IFO in a multi-IFO search.

Functions

NRCSID (SFTUTILSH,"$Id: SFTutils.h,v 1.35 2008/05/29 21:21:24 whelan Exp $")

void LALCreateSFTtype (LALStatus *status, SFTtype **sft, UINT4 SFTlen)

Create one SFT-struct.

void LALCreateSFTVector (LALStatus *status, SFTVector **sftvect, UINT4 numSFTs, UINT4 SFTlen)

Create a whole vector of numSFT SFTs with SFTlen frequency-bins.

void LALCreateMultiSFTVector (LALStatus *status, MultiSFTVector **out, UINT4 length, UINT4Vector *numsft)

SFTVector * XLALCreateSFTVector (UINT4 numSFTs, UINT4 numBins)

XLAL function to create an SFTVector of numSFT SFTs with SFTlen frequency-bins.

COMPLEX8Vector * XLALrefineCOMPLEX8Vector (const COMPLEX8Vector *in, UINT4 refineby, UINT4 Dterms)

Interpolate frequency-series to newLen frequency-bins.

void upsampleMultiSFTVector (LALStatus *, MultiSFTVector *inout, UINT4 upsample, UINT4 Dterms)

upsample a given multi-SFTvector by the given (integer) factor, _replacing_ the original SFTs

void upsampleSFTVector (LALStatus *, SFTVector *inout, UINT4 upsample, UINT4 Dterms)

void XLALDestroySFTVector (SFTVector *vect)

XLAL interface to destroy an SFTVector.

void LALDestroySFTtype (LALStatus *status, SFTtype **sft)

Destroy an SFT-struct.

void LALDestroySFTVector (LALStatus *status, SFTVector **sftvect)

Destroy an SFT-vector.

void LALDestroyPSDVector (LALStatus *status, PSDVector **vect)

Destroy a PSD-vector.

void LALDestroyMultiSFTVector (LALStatus *status, MultiSFTVector **multvect)

Destroy a multi SFT-vector.

void LALDestroyMultiPSDVector (LALStatus *status, MultiPSDVector **multvect)

Destroy a multi PSD-vector.

SFTVector * XLALExtractBandfromSFTs (const SFTVector *sfts, REAL8 fMin, REAL8 fMax)

Extract a frequency band from an SFTVector, returning a new SFTvector Note: fMin < 0 implies to start from lowest frequency bin, fMax < 0 implies to include up to highest frequency bin.

void LALCopySFT (LALStatus *status, SFTtype *dest, const SFTtype *src)

Copy an entire SFT-type into another.

void LALSubtractSFTVectors (LALStatus *, SFTVector **outVect, const SFTVector *inVect1, const SFTVector *inVect2)

Subtract two SFT-vectors and put the results in a new one (which it allocates).

void LALLinearlyCombineSFTVectors (LALStatus *, SFTVector **outVect, SFTVector **inVects, const COMPLEX16Vector *weights, const CHAR *outName)

Linearly combine two or more SFT-vectors and put the results in a new one (which it allocates).

void LALAppendSFT2Vector (LALStatus *, SFTVector *vect, const SFTtype *sft)

Append the given SFTtype to the SFT-vector (no SFT-specific checks are done!).

LIGOTimeGPSVector * XLALCreateTimestampVector (UINT4 len)

Allocate a LIGOTimeGPSVector.

void XLALDestroyTimestampVector (LIGOTimeGPSVector *vect)

De-allocate a LIGOTimeGPSVector.

void LALCreateTimestampVector (LALStatus *status, LIGOTimeGPSVector **vect, UINT4 len)

LAL-interface: Allocate a LIGOTimeGPSVector.

void LALDestroyTimestampVector (LALStatus *status, LIGOTimeGPSVector **vect)

De-allocate a LIGOTimeGPSVector.

void LALMakeTimestamps (LALStatus *, LIGOTimeGPSVector **timestamps, const LIGOTimeGPS tStart, REAL8 duration, REAL8 Tsft)

Given a start-time, duration and 'stepsize' tStep, returns a list of timestamps covering this time-stretch.

void LALGetSFTtimestamps (LALStatus *, LIGOTimeGPSVector **timestamps, const SFTVector *sfts)

Extract timstamps-vector from the given SFTVector.

CHAR * XLALGetChannelPrefix (const CHAR *name)

Extract/construct the unique 2-character "channel prefix" from the given "detector-name", which unfortunately will not always follow any of the official detector-naming conventions given in the Frames-Spec LIGO-T970130-F-E This function therefore sometime has to do some creative guessing:.

LALDetector * XLALGetSiteInfo (const CHAR *name)

Find the site geometry-information 'LALDetector' (mis-nomer!) given a detector-name.

void LALComputeNoiseWeights (LALStatus *status, REAL8Vector *weightV, const SFTVector *sftVect, INT4 blkSize, UINT4 excludePercentile)

Computes weight factors arising from SFTs with different noise floors -- it multiplies an existing weight vector.

void LALComputeMultiNoiseWeights (LALStatus *status, MultiNoiseWeights **weightsV, const MultiPSDVector *multipsd, UINT4 blocksRngMed, UINT4 excludePercentile)

Computes weight factors arising from MultiSFTs with different noise floors -- it multiplies an existing weight vector.

void LALDestroyMultiNoiseWeights (LALStatus *status, MultiNoiseWeights **weights)

Variables

const SFTtype empty_SFTtype

const SFTVector empty_SFTVector

const PSDVector empty_PSDVector

const MultiSFTVector empty_MultiSFTVector

const MultiPSDVector empty_MultiPSDVector

const MultiNoiseWeights empty_MultiNoiseWeights

const MultiREAL4TimeSeries empty_MultiREAL4TimeSeries

const LIGOTimeGPSVector empty_LIGOTimeGPSVector

const MultiLIGOTimeGPSVector empty_MultiLIGOTimeGPSVector

Detailed Description

Author:: Reinhard Prix, Badri Krishnan Utility functions for handling of SFTtype and SFTVectors

Date:: 2005

Id: SFTutils.h,v 1.35 2008/05/29 21:21:24 whelan Exp

The helper functions LALCreateSFTtype(), LALDestroySFTtype(), LALCreateSFTVector() and LALDestroySFTVector() respectively allocate and free SFT-structs and SFT-vectors. Similarly, LALCreateTimestampVector() and LALDestroyTimestampVector() allocate and free a bunch of GPS-timestamps.

Definition in file SFTutils.h.

Define Documentation

#define SFTUTILS_ENULL 1

Definition at line 62 of file SFTutils.h.

#define SFTUTILS_ENONULL 2

Definition at line 63 of file SFTutils.h.

#define SFTUTILS_EMEM 3

Definition at line 64 of file SFTutils.h.

#define SFTUTILS_EINPUT 4

Definition at line 65 of file SFTutils.h.

#define SFTUTILS_EFUNC 6

Definition at line 66 of file SFTutils.h.

#define SFTUTILS_MSGENULL "Arguments contained an unexpected null pointer"

Definition at line 68 of file SFTutils.h.

#define SFTUTILS_MSGENONULL "Output pointer is not NULL"

Definition at line 69 of file SFTutils.h.

#define SFTUTILS_MSGEMEM "Out of memory"

Definition at line 70 of file SFTutils.h.

#define SFTUTILS_MSGEINPUT "Invald input parameter"

Definition at line 71 of file SFTutils.h.

#define SFTUTILS_MSGEFUNC "Sub-routine failed"

Definition at line 72 of file SFTutils.h.

Typedef Documentation

typedef COMPLEX8FrequencySeries SFTtype

A so-called 'SFT' (short-Fourier-transform) will be stored in a COMPLEX8FrequencySeries.

Definition at line 90 of file SFTutils.h.

typedef COMPLEX8FrequencySeriesVector SFTVector

The corresponding vector-type to hold a vector of 'SFTs'.

Definition at line 94 of file SFTutils.h.

typedef REAL8FrequencySeriesVector PSDVector

Special type for holding a PSD vector (over several SFTs).

Definition at line 97 of file SFTutils.h.

typedef struct tagMultiSFTVector MultiSFTVector

A collection of SFT vectors -- one for each IFO in a multi-IFO search.

Function Documentation

NRCSID	(	SFTUTILSH	,
		"$Id: SFTutils.	h,
		v 1.35 2008/05/29 21:21:24 whelan Exp $"
	)

void LALCreateSFTtype	(	LALStatus *	status,
		SFTtype **	output,
		UINT4	numBins
	)

Create one SFT-struct.

Allows for numBins == 0.

Parameters:

output	[out] allocated SFT-struct
numBins	number of frequency-bins

Definition at line 152 of file SFTutils.c.

void LALCreateSFTVector	(	LALStatus *	status,
		SFTVector **	sftvect,
		UINT4	numSFTs,
		UINT4	SFTlen
	)

Create a whole vector of numSFT SFTs with SFTlen frequency-bins.

Parameters:

sftvect	[out] allocated SFT-vector
numSFTs	number of SFTs
SFTlen	number of frequency-bins per SFT

Definition at line 190 of file SFTutils.c.

void LALCreateMultiSFTVector	(	LALStatus *	status,
		MultiSFTVector **	out,
		UINT4	length,
		UINT4Vector *	numsft
	)

Parameters:

out	[out] multi sft vector created
length	number of sft data points
numsft	number of sfts in each sftvect

Definition at line 264 of file SFTutils.c.

SFTVector* XLALCreateSFTVector	(	UINT4	numSFTs,
		UINT4	numBins
	)

XLAL function to create an SFTVector of numSFT SFTs with SFTlen frequency-bins.

Parameters:

numSFTs	number of SFTs
numBins	number of frequency-bins per SFT

Definition at line 218 of file SFTutils.c.

COMPLEX8Vector* XLALrefineCOMPLEX8Vector	(	const COMPLEX8Vector *	in,
		UINT4	refineby,
		UINT4	Dterms
	)

Interpolate frequency-series to newLen frequency-bins.

This is using DFT-interpolation (derived from zero-padding).

Definition at line 1455 of file SFTutils.c.

void upsampleMultiSFTVector	(	LALStatus *	,
		MultiSFTVector *	inout,
		UINT4	upsample,
		UINT4	Dterms
	)

upsample a given multi-SFTvector by the given (integer) factor, _replacing_ the original SFTs

Parameters:

inout	[in,out]: upsampled multi SFT-vector
upsample	integer factor to upsample by
Dterms	number of terms in Dirichlet kernel [on each side]

Definition at line 1375 of file SFTutils.c.

void upsampleSFTVector	(	LALStatus *	,
		SFTVector *	inout,
		UINT4	upsample,
		UINT4	Dterms
	)

Parameters:

inout	[in,out]: upsampled SFT-vector
upsample	integer factor to upsample by
Dterms	number of terms in Dirichlet kernel [on each side]

Definition at line 1408 of file SFTutils.c.

void XLALDestroySFTVector ( SFTVector * vect )

XLAL interface to destroy an SFTVector.

Definition at line 368 of file SFTutils.c.

void LALDestroySFTtype	(	LALStatus *	status,
		SFTtype **	sft
	)

Destroy an SFT-struct.

Parameters:

sft

SFT-struct to free

Definition at line 316 of file SFTutils.c.

void LALDestroySFTVector	(	LALStatus *	status,
		SFTVector **	sftvect
	)

Destroy an SFT-vector.

Parameters:

sftvect

the SFT-vector to free

Definition at line 349 of file SFTutils.c.

void LALDestroyPSDVector	(	LALStatus *	status,
		PSDVector **	vect
	)

Destroy a PSD-vector.

Parameters:

vect

the SFT-vector to free

Definition at line 399 of file SFTutils.c.

void LALDestroyMultiSFTVector	(	LALStatus *	status,
		MultiSFTVector **	multvect
	)

Destroy a multi SFT-vector.

Parameters:

multvect

the SFT-vector to free

Definition at line 439 of file SFTutils.c.

void LALDestroyMultiPSDVector	(	LALStatus *	status,
		MultiPSDVector **	multvect
	)

Destroy a multi PSD-vector.

Parameters:

multvect

the SFT-vector to free

Definition at line 471 of file SFTutils.c.

SFTVector* XLALExtractBandfromSFTs	(	const SFTVector *	sfts,
		REAL8	fMin,
		REAL8	fMax
	)

Extract a frequency band from an SFTVector, returning a new SFTvector Note: fMin < 0 implies to start from lowest frequency bin, fMax < 0 implies to include up to highest frequency bin.

if fMin, fMax > 0, the corresponding frequency MUST be contained in the input SFT, otherwise an error is returned.

We guarantee that both fMin and fMax will be *contained* in the returned SFT, which means the actual min(f) can be < fMin, and max(f) > fMax is possible.

Definition at line 85 of file SFTutils.c.

void LALCopySFT	(	LALStatus *	status,
		SFTtype *	dest,
		const SFTtype *	src
	)

Copy an entire SFT-type into another.

We require the destination-SFT to have a NULL data-entry, as the corresponding data-vector will be allocated here and copied into

Note: the source-SFT is allowed to have a NULL data-entry, in which case only the header is copied.

Parameters:

dest	[out] copied SFT (needs to be allocated already)
src	input-SFT to be copied

Definition at line 509 of file SFTutils.c.

void LALSubtractSFTVectors	(	LALStatus *	,
		SFTVector **	outVect,
		const SFTVector *	inVect1,
		const SFTVector *	inVect2
	)

Subtract two SFT-vectors and put the results in a new one (which it allocates).

Parameters:

outVect	[out] difference of SFT-vectors
inVect1	input-vector 1
inVect2	input-vector 2

Definition at line 546 of file SFTutils.c.

void LALLinearlyCombineSFTVectors	(	LALStatus *	,
		SFTVector **	outVect,
		SFTVector **	inVects,
		const COMPLEX16Vector *	weights,
		const CHAR *	outName
	)

Linearly combine two or more SFT-vectors and put the results in a new one (which it allocates).

Parameters:

outVect	[out] linear combo of SFT-vectors
inVects	array of SFT-vectors
weights	vector of SFT-weights
outName	name for output vector

Definition at line 647 of file SFTutils.c.

void LALAppendSFT2Vector	(	LALStatus *	,
		SFTVector *	vect,
		const SFTtype *	sft
	)

Append the given SFTtype to the SFT-vector (no SFT-specific checks are done!).

Parameters:

vect	destinatino SFTVector to append to
sft	the SFT to append

Definition at line 760 of file SFTutils.c.

LIGOTimeGPSVector* XLALCreateTimestampVector ( UINT4 len )

Allocate a LIGOTimeGPSVector.

Definition at line 790 of file SFTutils.c.

void XLALDestroyTimestampVector ( LIGOTimeGPSVector * vect )

De-allocate a LIGOTimeGPSVector.

Definition at line 838 of file SFTutils.c.

void LALCreateTimestampVector	(	LALStatus *	status,
		LIGOTimeGPSVector **	vect,
		UINT4	len
	)

LAL-interface: Allocate a LIGOTimeGPSVector.

Parameters:

vect	[out] allocated timestamp-vector
len	number of elements

Definition at line 813 of file SFTutils.c.

void LALDestroyTimestampVector	(	LALStatus *	status,
		LIGOTimeGPSVector **	vect
	)

De-allocate a LIGOTimeGPSVector.

Parameters:

vect

timestamps-vector to be freed

Definition at line 854 of file SFTutils.c.

void LALMakeTimestamps	(	LALStatus *	,
		LIGOTimeGPSVector **	timestamps,
		const LIGOTimeGPS	tStart,
		REAL8	duration,
		REAL8	Tsft
	)

Given a start-time, duration and 'stepsize' tStep, returns a list of timestamps covering this time-stretch.

Parameters:

timestamps	[out] timestamps-vector
tStart	GPS start-time
duration	duration in seconds
Tsft	length of one (SFT) timestretch in seconds

Definition at line 879 of file SFTutils.c.

void LALGetSFTtimestamps	(	LALStatus *	,
		LIGOTimeGPSVector **	timestamps,
		const SFTVector *	sfts
	)

Extract timstamps-vector from the given SFTVector.

Parameters:

timestamps	[out] extracted timestamps
sfts	input SFT-vector

Definition at line 932 of file SFTutils.c.

CHAR* XLALGetChannelPrefix ( const CHAR * name )

Extract/construct the unique 2-character "channel prefix" from the given "detector-name", which unfortunately will not always follow any of the official detector-naming conventions given in the Frames-Spec LIGO-T970130-F-E This function therefore sometime has to do some creative guessing:.

NOTE: in case the channel-number can not be deduced from the name, it is set to '1', and a warning will be printed if lalDebugLevel > 0.

NOTE2: the returned string is allocated here!

Definition at line 977 of file SFTutils.c.

LALDetector* XLALGetSiteInfo ( const CHAR * name )

Find the site geometry-information 'LALDetector' (mis-nomer!) given a detector-name.

The LALDetector struct is allocated here.

Definition at line 1058 of file SFTutils.c.

void LALComputeNoiseWeights	(	LALStatus *	status,
		REAL8Vector *	weightV,
		const SFTVector *	sftVect,
		INT4	blkSize,
		UINT4	excludePercentile
	)

Computes weight factors arising from SFTs with different noise floors -- it multiplies an existing weight vector.

Definition at line 1126 of file SFTutils.c.

void LALComputeMultiNoiseWeights	(	LALStatus *	status,
		MultiNoiseWeights **	weightsV,
		const MultiPSDVector *	multipsd,
		UINT4	blocksRngMed,
		UINT4	excludePercentile
	)

Computes weight factors arising from MultiSFTs with different noise floors -- it multiplies an existing weight vector.

Definition at line 1235 of file SFTutils.c.

void LALDestroyMultiNoiseWeights	(	LALStatus *	status,
		MultiNoiseWeights **	weights
	)

Definition at line 1337 of file SFTutils.c.

Variable Documentation

const SFTtype empty_SFTtype

Definition at line 59 of file SFTutils.c.

const SFTVector empty_SFTVector

Definition at line 60 of file SFTutils.c.

const PSDVector empty_PSDVector

Definition at line 61 of file SFTutils.c.

const MultiSFTVector empty_MultiSFTVector

Definition at line 62 of file SFTutils.c.

const MultiPSDVector empty_MultiPSDVector

Definition at line 63 of file SFTutils.c.

const MultiNoiseWeights empty_MultiNoiseWeights

Definition at line 64 of file SFTutils.c.

const MultiREAL4TimeSeries empty_MultiREAL4TimeSeries

Definition at line 65 of file SFTutils.c.

const LIGOTimeGPSVector empty_LIGOTimeGPSVector

Definition at line 66 of file SFTutils.c.

const MultiLIGOTimeGPSVector empty_MultiLIGOTimeGPSVector

Definition at line 67 of file SFTutils.c.

Generated on Tue Oct 14 02:33:21 2008 for LAL by

1.5.2


Data Structures
struct	COMPLEX8FrequencySeriesVector
	A vector of COMPLEX8FrequencySeries. More...
struct	REAL8FrequencySeriesVector
	A vector of REAL8FrequencySeries. More...
struct	tagMultiSFTVector
	A collection of SFT vectors -- one for each IFO in a multi-IFO search. More...
struct	MultiPSDVector
	A collection of PSD vectors -- one for each IFO in a multi-IFO search. More...
struct	MultiNoiseWeights
	One noise-weight (number) per SFT (therefore indexed over IFOs and SFTs. More...
struct	MultiREAL4TimeSeries
	A collection of (multi-IFO) time-series. More...
struct	LIGOTimeGPSVector
	A vector of 'timestamps' of type LIGOTimeGPS. More...
struct	MultiLIGOTimeGPSVector
	A vector of 'timestamps' of type LIGOTimeGPS. More...
Defines
#define	SFTUTILS_ENULL 1
#define	SFTUTILS_ENONULL 2
#define	SFTUTILS_EMEM 3
#define	SFTUTILS_EINPUT 4
#define	SFTUTILS_EFUNC 6
#define	SFTUTILS_MSGENULL "Arguments contained an unexpected null pointer"
#define	SFTUTILS_MSGENONULL "Output pointer is not NULL"
#define	SFTUTILS_MSGEMEM "Out of memory"
#define	SFTUTILS_MSGEINPUT "Invald input parameter"
#define	SFTUTILS_MSGEFUNC "Sub-routine failed"
Typedefs
typedef COMPLEX8FrequencySeries	SFTtype
	A so-called 'SFT' (short-Fourier-transform) will be stored in a COMPLEX8FrequencySeries.
typedef COMPLEX8FrequencySeriesVector	SFTVector
	The corresponding vector-type to hold a vector of 'SFTs'.
typedef REAL8FrequencySeriesVector	PSDVector
	Special type for holding a PSD vector (over several SFTs).
typedef tagMultiSFTVector	MultiSFTVector
	A collection of SFT vectors -- one for each IFO in a multi-IFO search.
Functions
	NRCSID (SFTUTILSH,"$Id: SFTutils.h,v 1.35 2008/05/29 21:21:24 whelan Exp $")
void	LALCreateSFTtype (LALStatus status, SFTtype *sft, UINT4 SFTlen)
	Create one SFT-struct.
void	LALCreateSFTVector (LALStatus status, SFTVector *sftvect, UINT4 numSFTs, UINT4 SFTlen)
	Create a whole vector of `numSFT` SFTs with `SFTlen` frequency-bins.
void	LALCreateMultiSFTVector (LALStatus status, MultiSFTVector out, UINT4 length, UINT4Vector numsft)
SFTVector *	XLALCreateSFTVector (UINT4 numSFTs, UINT4 numBins)
	XLAL function to create an SFTVector of `numSFT` SFTs with `SFTlen` frequency-bins.
COMPLEX8Vector *	XLALrefineCOMPLEX8Vector (const COMPLEX8Vector *in, UINT4 refineby, UINT4 Dterms)
	Interpolate frequency-series to newLen frequency-bins.
void	upsampleMultiSFTVector (LALStatus , MultiSFTVector inout, UINT4 upsample, UINT4 Dterms)
	upsample a given multi-SFTvector by the given (integer) factor, _replacing_ the original SFTs
void	upsampleSFTVector (LALStatus , SFTVector inout, UINT4 upsample, UINT4 Dterms)
void	XLALDestroySFTVector (SFTVector *vect)
	XLAL interface to destroy an SFTVector.
void	LALDestroySFTtype (LALStatus status, SFTtype *sft)
	Destroy an SFT-struct.
void	LALDestroySFTVector (LALStatus status, SFTVector *sftvect)
	Destroy an SFT-vector.
void	LALDestroyPSDVector (LALStatus status, PSDVector *vect)
	Destroy a PSD-vector.
void	LALDestroyMultiSFTVector (LALStatus status, MultiSFTVector *multvect)
	Destroy a multi SFT-vector.
void	LALDestroyMultiPSDVector (LALStatus status, MultiPSDVector *multvect)
	Destroy a multi PSD-vector.
SFTVector *	XLALExtractBandfromSFTs (const SFTVector *sfts, REAL8 fMin, REAL8 fMax)
	Extract a frequency band from an SFTVector, returning a new SFTvector Note: fMin < 0 implies to start from lowest frequency bin, fMax < 0 implies to include up to highest frequency bin.
void	LALCopySFT (LALStatus status, SFTtype dest, const SFTtype *src)
	Copy an entire SFT-type into another.
void	LALSubtractSFTVectors (LALStatus , SFTVector outVect, const SFTVector inVect1, const SFTVector *inVect2)
	Subtract two SFT-vectors and put the results in a new one (which it allocates).
void	LALLinearlyCombineSFTVectors (LALStatus , SFTVector outVect, SFTVector inVects, const COMPLEX16Vector weights, const CHAR *outName)
	Linearly combine two or more SFT-vectors and put the results in a new one (which it allocates).
void	LALAppendSFT2Vector (LALStatus , SFTVector vect, const SFTtype *sft)
	Append the given SFTtype to the SFT-vector (no SFT-specific checks are done!).
LIGOTimeGPSVector *	XLALCreateTimestampVector (UINT4 len)
	Allocate a LIGOTimeGPSVector.
void	XLALDestroyTimestampVector (LIGOTimeGPSVector *vect)
	De-allocate a LIGOTimeGPSVector.
void	LALCreateTimestampVector (LALStatus status, LIGOTimeGPSVector *vect, UINT4 len)
	LAL-interface: Allocate a LIGOTimeGPSVector.
void	LALDestroyTimestampVector (LALStatus status, LIGOTimeGPSVector *vect)
	De-allocate a LIGOTimeGPSVector.
void	LALMakeTimestamps (LALStatus , LIGOTimeGPSVector *timestamps, const LIGOTimeGPS tStart, REAL8 duration, REAL8 Tsft)
	Given a start-time, duration and 'stepsize' tStep, returns a list of timestamps covering this time-stretch.
void	LALGetSFTtimestamps (LALStatus , LIGOTimeGPSVector timestamps, const SFTVector sfts)
	Extract timstamps-vector from the given SFTVector.
CHAR *	XLALGetChannelPrefix (const CHAR *name)
	Extract/construct the unique 2-character "channel prefix" from the given "detector-name", which unfortunately will not always follow any of the official detector-naming conventions given in the Frames-Spec LIGO-T970130-F-E This function therefore sometime has to do some creative guessing:.
LALDetector *	XLALGetSiteInfo (const CHAR *name)
	Find the site geometry-information 'LALDetector' (mis-nomer!) given a detector-name.
void	LALComputeNoiseWeights (LALStatus status, REAL8Vector weightV, const SFTVector *sftVect, INT4 blkSize, UINT4 excludePercentile)
	Computes weight factors arising from SFTs with different noise floors -- it multiplies an existing weight vector.
void	LALComputeMultiNoiseWeights (LALStatus status, MultiNoiseWeights weightsV, const MultiPSDVector multipsd, UINT4 blocksRngMed, UINT4 excludePercentile)
	Computes weight factors arising from MultiSFTs with different noise floors -- it multiplies an existing weight vector.
void	LALDestroyMultiNoiseWeights (LALStatus status, MultiNoiseWeights *weights)
Variables
const SFTtype	empty_SFTtype
const SFTVector	empty_SFTVector
const PSDVector	empty_PSDVector
const MultiSFTVector	empty_MultiSFTVector
const MultiPSDVector	empty_MultiPSDVector
const MultiNoiseWeights	empty_MultiNoiseWeights
const MultiREAL4TimeSeries	empty_MultiREAL4TimeSeries
const LIGOTimeGPSVector	empty_LIGOTimeGPSVector
const MultiLIGOTimeGPSVector	empty_MultiLIGOTimeGPSVector