subroutine da_oi_stats_bogus (stats_unit, iv) 1,18

   !-----------------------------------------------------------------------
   ! Purpose: TBD
   !-----------------------------------------------------------------------

   implicit none

   integer,        intent (in) :: stats_unit    ! Output unit for stats.
   type (iv_type), intent (in) :: iv            ! OI

   type (stats_bogus_type) :: stats
   integer                 :: nu, nv, nt, nq, nslp
   integer                 :: n, k

   if (trace_use_dull) call da_trace_entry("da_oi_stats_bogus")

   nslp = 0
   nu = 0
   nv = 0
   nt = 0
   nq = 0

   stats%maximum%u   = maxmin_type(missing_r, 0, 0)
   stats%maximum%v   = maxmin_type(missing_r, 0, 0)
   stats%maximum%t   = maxmin_type(missing_r, 0, 0)
   stats%maximum%q   = maxmin_type(missing_r, 0, 0)
   stats%maximum%slp = maxmin_type(missing_r, 0, 0)
   stats%minimum%u   = maxmin_type(-missing_r, 0, 0)
   stats%minimum%v   = maxmin_type(-missing_r, 0, 0)
   stats%minimum%t   = maxmin_type(-missing_r, 0, 0)
   stats%minimum%q   = maxmin_type(-missing_r, 0, 0)
   stats%minimum%slp = maxmin_type(-missing_r, 0, 0)

   stats%average = residual_bogus1_type(0.0, 0.0, 0.0, 0.0, 0.0)
   stats%rms_err = stats%average

   do n=1, iv%info(bogus)%nlocal
      if (iv%info(bogus)%proc_domain(1,n)) then
         do k=1, iv%info(bogus)%levels(n)
            call da_stats_calculate(iv%info(bogus)%obs_global_index(n), &
               k, iv%bogus(n)%u(k)%qc, &
               iv%bogus(n)%u(k)%inv, nu, &
               stats%minimum%u, stats%maximum%u, &
               stats%average%u, stats%rms_err%u)
            call da_stats_calculate(iv%info(bogus)%obs_global_index(n), &
               k, iv%bogus(n)%v(k)%qc, &
               iv%bogus(n)%v(k)%inv, nv, &
               stats%minimum%v, stats%maximum%v, &
               stats%average%v, stats%rms_err%v)
            call da_stats_calculate(iv%info(bogus)%obs_global_index(n), &
               k, iv%bogus(n)%t(k)%qc, &
               iv%bogus(n)%t(k)%inv, nt, &
               stats%minimum%t, stats%maximum%t, &
               stats%average%t, stats%rms_err%t)
            call da_stats_calculate(iv%info(bogus)%obs_global_index(n), &
               k, iv%bogus(n)%q(k)%qc, &
               iv%bogus(n)%q(k)%inv, nq, &
               stats%minimum%q, stats%maximum%q, &
               stats%average%q, stats%rms_err%q)
         end do
         call da_stats_calculate( iv%info(bogus)%obs_global_index(n), &
            0, iv%bogus(n)%slp%qc, &
            iv%bogus(n)%slp%inv, nslp,  &
            stats%minimum%slp, stats%maximum%slp, &
            stats%average%slp, stats%rms_err%slp)
      end if
   end do

   ! Do inter-processor communication to gather statistics.
   call da_proc_sum_int(nu)
   call da_proc_sum_int(nv)
   call da_proc_sum_int(nt)
   call da_proc_sum_int(nq)
   call da_proc_sum_int(nslp)

   call da_proc_stats_combine(stats%average%u, stats%rms_err%u, &
      stats%minimum%u%value, stats%maximum%u%value, &
      stats%minimum%u%n, stats%maximum%u%n, &
      stats%minimum%u%l, stats%maximum%u%l)
   call da_proc_stats_combine(stats%average%v, stats%rms_err%v, &
      stats%minimum%v%value, stats%maximum%v%value, &
      stats%minimum%v%n, stats%maximum%v%n, &
      stats%minimum%v%l, stats%maximum%v%l)
   call da_proc_stats_combine(stats%average%t, stats%rms_err%t, &
      stats%minimum%t%value, stats%maximum%t%value, &
      stats%minimum%t%n, stats%maximum%t%n, &
      stats%minimum%t%l, stats%maximum%t%l)
   call da_proc_stats_combine(stats%average%q, stats%rms_err%q, &
      stats%minimum%q%value, stats%maximum%q%value, &
      stats%minimum%q%n, stats%maximum%q%n, &
      stats%minimum%q%l, stats%maximum%q%l)
   call da_proc_stats_combine(stats%average%slp, stats%rms_err%slp, &
      stats%minimum%slp%value, stats%maximum%slp%value, &
      stats%minimum%slp%n, stats%maximum%slp%n, &
      stats%minimum%slp%l, stats%maximum%slp%l)

   if (rootproc) then
      if (nu /= 0 .or. nv /= 0 .or. nt /= 0 .or. nq /= 0 .or. nslp /= 0) then
         write(unit=stats_unit, fmt='(/a/)') ' Diagnostics of OI for bogus'
         call da_print_stats_bogus(stats_unit, nu, nv, nt, nq, nslp, stats)
      end if
   end if

   if (trace_use_dull) call da_trace_exit("da_oi_stats_bogus")

end subroutine da_oi_stats_bogus