Program g11aafe

!     G11AAF Example Program Text

!     Mark 27.2 Release. NAG Copyright 2021.

!     .. Use Statements ..
      Use nag_library, Only: g11aaf, nag_wp
!     .. Implicit None Statement ..
      Implicit None
!     .. Parameters ..
      Integer, Parameter               :: nin = 5, nout = 6
!     .. Local Scalars ..
      Real (Kind=nag_wp)               :: chi, df, g, prob
      Integer                          :: i, ifail, ldnobs, ncol, nrow
!     .. Local Arrays ..
      Real (Kind=nag_wp), Allocatable  :: chist(:,:), expt(:,:)
      Integer, Allocatable             :: nobs(:,:)
!     .. Executable Statements ..
      Write (nout,*) ' G11AAF Example Program Results'
      Write (nout,*)

!     Skip heading in data file
      Read (nin,*)

!     Read in the problem size
      Read (nin,*) nrow, ncol

      ldnobs = nrow
      Allocate (nobs(ldnobs,ncol),expt(ldnobs,ncol),chist(ldnobs,ncol))

!     Read in data
      Read (nin,*)(nobs(i,1:ncol),i=1,nrow)

!     Perform chi-squared test
      ifail = -1
      Call g11aaf(nrow,ncol,nobs,ldnobs,expt,chist,prob,chi,g,df,ifail)
      If (ifail/=0) Then
        If (ifail/=3) Then
          Go To 100
        End If
      End If

!     Display results
      Write (nout,99999) ' Probability =', prob
      Write (nout,99998) ' Pearson Chi-square statistic = ', chi
      Write (nout,99998) ' Likelihood ratio test statistic = ', g
      Write (nout,99997) ' Degrees of freedom = ', df

100   Continue

99999 Format (A,F7.4)
99998 Format (A,F8.3)
99997 Format (A,F4.0)
    End Program g11aafe