LAPACK  3.4.2
LAPACK: Linear Algebra PACKage
 All Files Functions Groups
dlapmr.f File Reference

Go to the source code of this file.

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 ( 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.

Download DLAPMR + dependencies [TGZ] [ZIP] [TXT]
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:
[in]FORWRD
          FORWRD is LOGICAL
          = .TRUE., forward permutation
          = .FALSE., backward permutation
[in]M
          M is INTEGER
          The number of rows of the matrix X. M >= 0.
[in]N
          N is INTEGER
          The number of columns of the matrix X. N >= 0.
[in,out]X
          X is DOUBLE PRECISION array, dimension (LDX,N)
          On entry, the M by N matrix X.
          On exit, X contains the permuted matrix X.
[in]LDX
          LDX is INTEGER
          The leading dimension of the array X, LDX >= MAX(1,M).
[in,out]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 dlapmr.f.

Here is the caller graph for this function: