slapmr.f man page

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 (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

```          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

NAG Ltd.

Date:

December 2016

Definition at line 106 of file slapmr.f.

Author

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Referenced By

The man page slapmr(3) is an alias of slapmr.f(3).

Tue Nov 14 2017 Version 3.8.0 LAPACK