AIPS HELP file for XG2XG in 31DEC26
As of Tue Feb 10 13:52:53 2026
XG2XG: Copies an XG/ZE table to a new one with different NGAUSS
INPUTS
INNAME Input I image name (name)
INCLASS Input I image name (class)
INSEQ 0.0 9999.0 Input I image name (seq. #)
INDISK 0.0 9.0 Input I image disk unit #
INVERS 0.0 XG table version
NGAUSS 0.0 32.0 Maximum # Gaussians new table
INEXT Table type: 'ZE' else 'XG'
HELP SECTION
XG2XG
Task: When XGAUS and AGAUS first create an XG table the maximum number
of Gaussians it can hold is set. The XG table then can hold a
lot of work solving Gaussian components for the image cube. If
one later decides that the maximum is too few (or even too many)
this task will create a new XG file with NGAUSS Gaussians as its
upper limit and will copy the contents of INVERS to a new XG
table.
When ZEMAN and ZAMAN first create a ZE table, the maximum number
of Gaussians is set by the XG table used. This task can then be
used to copy a ZE table with NGAUSS Gaussians as its upper limit.
This should match whatever was done with the XG table.
Adverbs:
INNAME.....Transposed I image name (name). Standard defaults.
INCLASS....Transposed I image name (class). Standard defaults.
INSEQ......Transposed I image name (seq. #). 0 => highest.
INDISK.....Transposed I image disk #. 0 => any.
INVERS.....XG or ZE table version: 0 => highest
NGAUSS.....Number Gaussians in new table. If NGAUSS is smaller than
the current number, XG2XG will check and report if any
non-zero solutions have been lost. It will list the first
30 and the number not listed.
INEXT......Set to 'ZE' to do a ZEMAN/ZAMAN table. Otherwise an
XGAUS/AGAUS XG table is done.
EXPLAIN SECTION