Program g03fcfe ! G03FCF Example Program Text ! Mark 24 Release. NAG Copyright 2012. ! .. Use Statements .. Use nag_library, Only: g03faf, g03fcf, nag_wp, x04caf ! .. Implicit None Statement .. Implicit None ! .. Parameters .. Integer, Parameter :: nin = 5, nout = 6 ! .. Local Scalars .. Real (Kind=nag_wp) :: stress Integer :: ifail, iopt, iter, ld, ldfit, ldx, & liwk, lwk, n, ndim Character (1) :: roots, typ ! .. Local Arrays .. Real (Kind=nag_wp), Allocatable :: d(:), dfit(:), eval(:), wk(:), x(:,:) Integer, Allocatable :: iwk(:) ! .. Intrinsic Procedures .. Intrinsic :: max ! .. Executable Statements .. Write (nout,*) 'G03FCF Example Program Results' Write (nout,*) ! Skip heading in data file Read (nin,*) ! Read in the problem size Read (nin,*) n, ndim, roots, typ ld = n*(n-1)/2 ldx = n lwk = max(n*(n+17)/2-1,15*n*ndim) liwk = max(5*n,n*(n-1)/2+n*ndim+5) ldfit = 2*n*(n-1) Allocate (d(ld),x(ldx,ndim),eval(n),wk(lwk),iwk(liwk),dfit(ldfit)) ! Read in the lower triangular part of the distance matrix Read (nin,*) d(1:ld) ! Perform principal co-ordinate analysis ifail = 0 Call g03faf(roots,n,d,ndim,x,ldx,eval,wk,iwk,ifail) ! Use default values for number of iterations and options iter = 0 iopt = 0 ! Perform multi-dimensional scaling ifail = 0 Call g03fcf(typ,n,ndim,d,x,ldx,stress,dfit,iter,iopt,wk,iwk,ifail) ! Display the results Write (nout,99999) 'STRESS = ', stress Write (nout,*) Flush (nout) ifail = 0 Call x04caf('General',' ',n,ndim,x,ldx,'Co-ordinates',ifail) 99999 Format (10X,A,E13.4) End Program g03fcfe