Program g07gafe

!     G07GAF Example Program Text

!     Mark 27.3 Release. NAG Copyright 2021.

!     .. Use Statements ..
      Use nag_library, Only: g07gaf, nag_wp
!     .. Implicit None Statement ..
      Implicit None
!     .. Parameters ..
      Integer, Parameter               :: nin = 5, nout = 6
!     .. Local Scalars ..
      Real (Kind=nag_wp)               :: mean, var
      Integer                          :: i, ifail, ldiff, n, niout, p
!     .. Local Arrays ..
      Real (Kind=nag_wp), Allocatable  :: diff(:), llamb(:), y(:)
      Integer, Allocatable             :: iout(:)
!     .. Executable Statements ..
      Write (nout,*) 'G07GAF Example Program Results'
      Write (nout,*)

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

!     Read in the problem size
      Read (nin,*) n, p, ldiff

      Allocate (y(n),iout(n),diff(ldiff),llamb(ldiff))

!     Read in data
      Read (nin,*) y(1:n)

!     Let routine calculate mean and variance
      mean = 0.0E0_nag_wp
      var = 0.0E0_nag_wp

!     Get a list of potential outliers
      ifail = 0
      Call g07gaf(n,p,y,mean,var,iout,niout,ldiff,diff,llamb,ifail)

!     Display results
      Write (nout,*) 'Number of potential outliers:', niout
      If (ldiff>0) Then
        Write (nout,*) '  No.  Index    Value       Diff    ln(lambda^2)'
      Else
        Write (nout,*) '  No.  Index    Value'
      End If
      Do i = 1, niout
        If (i>ldiff) Then
          Write (nout,99999) i, iout(i), y(iout(i))
        Else
          Write (nout,99998) i, iout(i), y(iout(i)), diff(i), llamb(i)
        End If
      End Do

99999 Format (1X,I4,2X,I4,1X,F10.2)
99998 Format (1X,I4,2X,I4,3(1X,F10.2))
    End Program g07gafe