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slapmr.f(3) LAPACK slapmr.f(3)

NAME

slapmr.f -

SYNOPSIS

Functions/Subroutines


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

Function/Subroutine Documentation

subroutine slapmr (logicalFORWRD, integerM, integerN, real, dimension( ldx, * )X, integerLDX, 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
          M is INTEGER
          The number of rows of the matrix X. M >= 0.
N
          N is INTEGER
          The number of columns of the matrix X. N >= 0.
X
          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
          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 slapmr.f.

Author

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