The Complete SPRLIB & ANNLIB

sammon_backup_map

- make a backup of the current map (LOCAL)

SYNOPSIS

void sammon_backup_map ()

ARGUMENTS

None.

RETURNS

Nothing.

FUNCTION

This function copies the global variable map to backup (see SAMMON-VARIABLES). It is used in sammon_solve to prevent overshoot when minimizing Sammon's stress measure. If the stress rises after a number of iterations, the last backup can be recalled using sammon_restore_map.

SEE ALSO

sammon_solve, sammon_restore_map

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