lapmr(3)

Library Functions Manual

lapmr(3)

NAME

lapmr - lapmr: permute rows

SYNOPSIS

Functions

subroutine clapmr (forwrd, m, n, x, ldx, k)
CLAPMR rearranges rows of a matrix as specified by a permutation vector. subroutine dlapmr (forwrd, m, n, x, ldx, k)
DLAPMR rearranges rows of a matrix as specified by a permutation vector. subroutine slapmr (forwrd, m, n, x, ldx, k)
SLAPMR rearranges rows of a matrix as specified by a permutation vector. subroutine zlapmr (forwrd, m, n, x, ldx, k)
ZLAPMR rearranges rows of a matrix as specified by a permutation vector.

Detailed Description

Function Documentation

subroutine clapmr (logical forwrd, integer m, integer n, complex, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

CLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

!>
!> CLAPMR rearranges the rows of the M by N matrix X as specified
!> by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.
!> If FORWRD = .TRUE.,  forward permutation:
!>
!>      X(K(I),*) is moved X(I,*) for I = 1,2,...,M.
!>
!> If FORWRD = .FALSE., backward permutation:
!>
!>      X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.
!>

Parameters

FORWRD

!>          FORWRD is LOGICAL
!>          = .TRUE., forward permutation
!>          = .FALSE., backward permutation
!>

!>          M is INTEGER
!>          The number of rows of the matrix X. M >= 0.
!>

!>          N is INTEGER
!>          The number of columns of the matrix X. N >= 0.
!>

!>          X is COMPLEX array, dimension (LDX,N)
!>          On entry, the M by N matrix X.
!>          On exit, X contains the permuted matrix X.
!>

LDX

!>          LDX is INTEGER
!>          The leading dimension of the array X, LDX >= MAX(1,M).
!>

!>          K is INTEGER array, dimension (M)
!>          On entry, K contains the permutation vector. K is used as
!>          internal workspace, but reset to its original value on
!>          output.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 103 of file clapmr.f.

subroutine dlapmr (logical forwrd, integer m, integer n, double precision, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

DLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

!>
!> DLAPMR rearranges the rows of the M by N matrix X as specified
!> by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.
!> If FORWRD = .TRUE.,  forward permutation:
!>
!>      X(K(I),*) is moved X(I,*) for I = 1,2,...,M.
!>
!> If FORWRD = .FALSE., backward permutation:
!>
!>      X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.
!>

Parameters

FORWRD

!>          FORWRD is LOGICAL
!>          = .TRUE., forward permutation
!>          = .FALSE., backward permutation
!>

!>          M is INTEGER
!>          The number of rows of the matrix X. M >= 0.
!>

!>          N is INTEGER
!>          The number of columns of the matrix X. N >= 0.
!>

!>          X is DOUBLE PRECISION array, dimension (LDX,N)
!>          On entry, the M by N matrix X.
!>          On exit, X contains the permuted matrix X.
!>

LDX

!>          LDX is INTEGER
!>          The leading dimension of the array X, LDX >= MAX(1,M).
!>

!>          K is INTEGER array, dimension (M)
!>          On entry, K contains the permutation vector. K is used as
!>          internal workspace, but reset to its original value on
!>          output.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 103 of file dlapmr.f.

subroutine slapmr (logical forwrd, integer m, integer n, real, dimension( ldx, * ) x, integer ldx, integer, dimension( * ) k)

SLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

!>
!> SLAPMR rearranges the rows of the M by N matrix X as specified
!> by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.
!> If FORWRD = .TRUE.,  forward permutation:
!>
!>      X(K(I),*) is moved X(I,*) for I = 1,2,...,M.
!>
!> If FORWRD = .FALSE., backward permutation:
!>
!>      X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.
!>

Parameters

FORWRD

!>          FORWRD is LOGICAL
!>          = .TRUE., forward permutation
!>          = .FALSE., backward permutation
!>

!>          M is INTEGER
!>          The number of rows of the matrix X. M >= 0.
!>

!>          N is INTEGER
!>          The number of columns of the matrix X. N >= 0.
!>

!>          X is REAL array, dimension (LDX,N)
!>          On entry, the M by N matrix X.
!>          On exit, X contains the permuted matrix X.
!>

LDX

!>          LDX is INTEGER
!>          The leading dimension of the array X, LDX >= MAX(1,M).
!>

!>          K is INTEGER array, dimension (M)
!>          On entry, K contains the permutation vector. K is used as
!>          internal workspace, but reset to its original value on
!>          output.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 103 of file slapmr.f.

subroutine zlapmr (logical forwrd, integer m, integer n, complex16, dimension( ldx, ) x, integer ldx, integer, dimension( * ) k)

ZLAPMR rearranges rows of a matrix as specified by a permutation vector.

Purpose:

!>
!> ZLAPMR rearranges the rows of the M by N matrix X as specified
!> by the permutation K(1),K(2),...,K(M) of the integers 1,...,M.
!> If FORWRD = .TRUE.,  forward permutation:
!>
!>      X(K(I),*) is moved X(I,*) for I = 1,2,...,M.
!>
!> If FORWRD = .FALSE., backward permutation:
!>
!>      X(I,*) is moved to X(K(I),*) for I = 1,2,...,M.
!>

Parameters

FORWRD

!>          FORWRD is LOGICAL
!>          = .TRUE., forward permutation
!>          = .FALSE., backward permutation
!>

!>          M is INTEGER
!>          The number of rows of the matrix X. M >= 0.
!>

!>          N is INTEGER
!>          The number of columns of the matrix X. N >= 0.
!>

!>          X is COMPLEX*16 array, dimension (LDX,N)
!>          On entry, the M by N matrix X.
!>          On exit, X contains the permuted matrix X.
!>

LDX

!>          LDX is INTEGER
!>          The leading dimension of the array X, LDX >= MAX(1,M).
!>

!>          K is INTEGER array, dimension (M)
!>          On entry, K contains the permutation vector. K is used as
!>          internal workspace, but reset to its original value on
!>          output.
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 103 of file zlapmr.f.

Author

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