dlapmr-f(3)

dlapmr.f –

Synopsis

Functions/Subroutines

subroutine dlapmr (FORWRD, M, N, X, LDX, K)
DLAPMR rearranges rows of a matrix as specified by a permutation vector.

Function/Subroutine Documentation

subroutine dlapmr (logicalFORWRD, integerM, integerN, double precision, dimension( ldx, * )X, integerLDX, 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.

Date:

September 2012

Definition at line 105 of file dlapmr.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.