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