Due to its long history, CLASS77 command name were sometimes awkward,
e.g. the GAUSS command which was launching a fit even though the
fitting function was not Gaussian! We made the minimum number of changed to
avoid disturbing too much long standing habits of CLASS users. We are
also furnishing a CLASS procedure named old-command-names.class
which aliases new and old names through the use of GILDAS symbols. This
is distributed for maximum backward compatibility, e.g. to enable use of
CLASS77 within CLASS90 (this is not foolproof though). However, it
is clear that old command names are obsolete and we advise users
against the use of the aliases. In particular, users' new procedures
should use new command names. Table displays an exhaustive
list of correspondence between old and new names. The fit-related
commands have been gathered into a separate language named FIT. The
GAUSS and FIT commands have been replaced by the more
explicit MINIMIZE and VISUALIZE names. For logical
reasons, SUM has been replaced by the AVERAGE. Due to
the new way of dealing with OTF data, the RECORD command is now
obsolete and will disappear soon. The GRID command is also
obsolete as its functionalities have been redistributed and extended in the
TABLE and XY_MAP
commands (cf. section ).
Finally, the CFITS language has been replaced by a single
LAS\FITS
command. Indeed, most of the CFITS commands were
customized for tapes which are an obsolescent storage medium.