getWhatMeasured(x, ...)what_measured(x, ...)
# S3 method for default
getWhatMeasured(x, ...)
# S3 method for generic_spct
getWhatMeasured(x, ...)
# S3 method for summary_generic_spct
getWhatMeasured(x, ...)
# S3 method for generic_mspct
getWhatMeasured(x, ..., idx = "spct.idx")