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# ARMSR -- Compute the rms of an array.
real procedure armsr (a, npoints)
real a[ARB] # Return rms of this array
int npoints # Number of points in the array
int i
real avg, rms
begin
avg = 0.
rms = 0.
do i = 1, npoints {
avg = avg + a[i]
rms = rms + a[i] * a[i]
}
rms = sqrt ((npoints * rms - avg * avg) / (npoints * (npoints - 1)))
return (rms)
end
# ARMSRR -- Compute the vector rms between two real arrays.
real procedure armsrr (a, b, npoints)
real a[ARB] # First array
real b[ARB] # Second array
int npoints # Number of points
int i
real residual, rms
begin
rms = 0.
do i = 1, npoints {
residual = a[i] - b[i]
rms = rms + residual ** 2
}
rms = sqrt (rms / npoints)
return (rms)
end
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