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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.

# ARLT -- Replace if less than.  If A[i] is less than FLOOR replace by NEWVAL.

procedure arltr (a, npix, floor, newval)

real	a[ARB]
int	npix
real	floor, newval
int	i

begin

	do i = 1, npix
	    if (a[i] < floor)
		a[i] = newval
end