AIPS NRAO 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


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