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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /sys/vops/alov.gx | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'sys/vops/alov.gx')
| -rw-r--r-- | sys/vops/alov.gx | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sys/vops/alov.gx b/sys/vops/alov.gx new file mode 100644 index 00000000..27a81128 --- /dev/null +++ b/sys/vops/alov.gx @@ -0,0 +1,35 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ALOV -- Compute the low value (minimum) of a vector. + +PIXEL procedure alov$t (a, npix) + +PIXEL a[ARB] +int npix +PIXEL low, pixval +$if (datatype == x) +real abs_low +$endif +int i + +begin + low = a[1] + $if (datatype == x) + abs_low = abs (low) + $endif + + do i = 1, npix { + pixval = a[i] + $if (datatype == x) + if (abs (pixval) < abs_low) { + low = pixval + abs_low = abs (low) + } + $else + if (pixval < low) + low = pixval + $endif + } + + return (low) +end |