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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include "icombine.h"
# IC_SUM -- Compute the summed image line.
procedure ic_sumr (d, n, npts, sum)
pointer d[ARB] # Data pointers
int n[npts] # Number of points
int npts # Number of output points per line
real sum[npts] # Average (returned)
int i, j, k
real s
include "icombine.com"
begin
# If no data has been excluded do the sum without checking the
# number of points. If all the data has been excluded set the
# sum to the blank value.
if (dflag == D_ALL) {
do i = 1, npts {
k = i - 1
s = Memr[d[1]+k]
do j = 2, n[i]
s = s + Memr[d[j]+k]
sum[i] = s
}
} else if (dflag == D_NONE) {
do i = 1, npts
sum[i] = blank
} else {
do i = 1, npts {
if (n[i] > 0) {
k = i - 1
s = Memr[d[1]+k]
do j = 2, n[i]
s = s + Memr[d[j]+k]
sum[i] = s
} else
sum[i] = blank
}
}
end
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