Program g05pxfe
! G05PXF Example Program Text
! Mark 30.3 Release. nAG Copyright 2024.
! .. Use Statements ..
Use nag_library, Only: g05kff, g05pxf, nag_wp, x04caf
! .. Implicit None Statement ..
Implicit None
! .. Parameters ..
Integer, Parameter :: lseed = 1, nin = 5, nout = 6
! .. Local Scalars ..
Integer :: genid, i, ifail, lda, lstate, m, n, &
subid
Character (1) :: init, side
! .. Local Arrays ..
Real (Kind=nag_wp), Allocatable :: a(:,:)
Integer :: seed(lseed)
Integer, Allocatable :: state(:)
! .. Executable Statements ..
Write (nout,*) 'G05PXF Example Program Results'
Write (nout,*)
Flush (nout)
! Skip heading in data file
Read (nin,*)
! Read in the base generator information and seed
Read (nin,*) genid, subid, seed(1)
! Initial call to initializer to get size of STATE array
lstate = 0
Allocate (state(lstate))
ifail = 0
Call g05kff(genid,subid,seed,lseed,state,lstate,ifail)
! Reallocate STATE
Deallocate (state)
Allocate (state(lstate))
! Initialize the generator to a repeatable sequence
ifail = 0
Call g05kff(genid,subid,seed,lseed,state,lstate,ifail)
! Read in the problem size
Read (nin,*) n, m
! Read in control parameters
Read (nin,*) side, init
lda = m
Allocate (a(lda,n))
! Read in A if required
If (init=='N' .Or. init=='n') Then
Read (nin,*)(a(i,1:n),i=1,m)
End If
! Generate the random orthogonal matrix
ifail = 0
Call g05pxf(side,init,m,n,state,a,lda,ifail)
! Display the results
ifail = 0
Call x04caf('General',' ',m,n,a,lda,'Random Matrix',ifail)
End Program g05pxfe