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UPper # ON [glist]
If a number in one of the groups specified in glist is less than
# sigma from zero, then plot that number as a #-sigma upper limit.
Example:
PLT> UPper 2.7 ON 3 ! When plotting group 3, all numbers within 2.7
PLT> ! sigma of zero will be plotted as an upper limit.
Web Page Maintained by: Dr. Lawrence E. Brown elwin@redshift.gsfc.nasa.gov
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