*     G02GKF Example Program Text
*     Mark 14 Release.  NAG Copyright 1989.
*     .. Parameters ..
      INTEGER          NMAX, MMAX
      PARAMETER        (NMAX=15,MMAX=9)
      INTEGER          NIN, NOUT
      PARAMETER        (NIN=5,NOUT=6)
*     .. Local Scalars ..
      DOUBLE PRECISION A, DEV, EPS, TOL
      INTEGER          I, ICONST, IDF, IFAIL, IP, IPRINT, IRANK, J, M,
     +                 MAXIT, N
*     .. Local Arrays ..
      DOUBLE PRECISION B(MMAX), C(MMAX,MMAX), COV((MMAX*MMAX+MMAX)/2),
     +                 SE(MMAX), V(NMAX,7+MMAX), WK(5*MMAX*MMAX),
     +                 WT(NMAX), X(NMAX,MMAX), Y(NMAX)
      INTEGER          ISX(MMAX)
*     .. External Subroutines ..
      EXTERNAL         G02GCF, G02GKF
*     .. Executable Statements ..
      WRITE (NOUT,*) 'G02GKF Example Program Results'
*     Skip heading in data file
      READ (NIN,*)
      READ (NIN,*) N, M, IPRINT
      IF (N.LE.NMAX .AND. M.LT.MMAX) THEN
         DO 20 I = 1, N
            READ (NIN,*) (X(I,J),J=1,M), Y(I)
   20    CONTINUE
         READ (NIN,*) (ISX(J),J=1,M), IP
*        Set control parameters
         EPS = 0.000001D0
         TOL = 0.00005D0
         MAXIT = 10
         IFAIL = -1
*
*        Fit Log-linear model using G02GCF
         CALL G02GCF('L','M','N','U',N,X,NMAX,M,ISX,IP,Y,WT,A,DEV,IDF,B,
     +               IRANK,SE,COV,V,NMAX,TOL,MAXIT,IPRINT,EPS,WK,IFAIL)
*
         IF (IFAIL.EQ.0 .OR. IFAIL.GE.7) THEN
            WRITE (NOUT,*)
            WRITE (NOUT,99999) 'Deviance = ', DEV
            WRITE (NOUT,99998) 'Degrees of freedom = ', IDF
            WRITE (NOUT,*)
*           Input constraints
            ICONST = IP - IRANK
            DO 40 I = 1, IP
               READ (NIN,*) (C(I,J),J=1,ICONST)
   40       CONTINUE
*
            CALL G02GKF(IP,ICONST,V,NMAX,C,MMAX,B,1.0D0,SE,COV,WK,IFAIL)
*
            WRITE (NOUT,*) '      Estimate     Standard error'
            WRITE (NOUT,*)
            DO 60 I = 1, IP
               WRITE (NOUT,99997) B(I), SE(I)
   60       CONTINUE
         END IF
      END IF
      STOP
*
99999 FORMAT (1X,A,D12.4)
99998 FORMAT (1X,A,I2)
99997 FORMAT (1X,2F14.4)
      END