ACCUMULATE /NOCHECK

###
ACCUMULATE /NOCHECK

            LAS\ACCUMULATE  /NOCHECK [SOURCE|POSITION|LINE|SPECTROSCOPY|CALIBRA-
        TION|SWITCHING]

        By default, ACCUMULATE checks the consistency between R and T. This is a
        security  to avoid mixing inconsistent data (e.g. spectra from different
        sources). These checks can be individually (with one or more  names)  or
        all  (no  name) disabled using the option /NOCHECK. See HELP SET NOCHECK
        for details.

        Note the key status of the  SPECTROSCOPY  check!  ACCUMULATE  uses  this
        check  to  detect  if the spectra X axes are aligned or not, to help its
        decision to enable resampling or not  (see  /RESAMPLE  subtopic).  Using
        /NOCHECK SPECTROSCOPY enforces the spectra alignment status:

        ACCUMULATE /NOCHECK SPECTROSCOPY
            will assume R and T are aligned and will stack them channel by chan-
            nel (no resampling), while they are possibly not aligned.

        ACCUMULATE /RESAMPLE /NOCHECK SPECTROSCOPY
            will assume R and T are not aligned and will  always  resample  them
            before  stacking,  even  if not necessary (adds computation cost and
            possible round off errors).