getWhereMeasured(x, ...)# S3 method for default
getWhereMeasured(x, ...)
# S3 method for generic_spct
getWhereMeasured(x, ...)
# S3 method for summary_generic_spct
getWhereMeasured(x, ...)
# S3 method for generic_mspct
getWhereMeasured(x, ..., idx = !is.null(names(x)))