Determines if the provided data has intensity type of absorbance
or transmittance.
Usage
intensity_type(ftir)
Value
a character value 'absorbance' or 'transmittance'
Arguments
ftir
A data.frame in long format with columns `sample_id`, `wavenumber`,
and `absorbance`/`transmittance`.
Un data.frame au format long avec les colonnes `sample_id`, `wavenumber`,
et `absorbance`/`transmittance`.