select_ref_spc: Select a set of reference spectra to be measured by reference...

In philipp-baumann/simplerspec: Soil and plant spectroscopic model building and prediction

Select a set of reference spectra to be measured by reference analysis methods

Description

Select a set of calibration spectra to develop spectral models. Samples in this list will be analyzed using laboratory reference methods.

Usage

select_ref_spc(spc_tbl, ratio_ref, pc, print = TRUE)

Arguments

spc_tbl	Spectra as tibble objects that contain preprocessed spectra
ratio_ref	Ratio of desired reference samples to total sample number
pc	Number of principal components (numeric). If pc < 1, the number of principal components kept corresponds to the number of components explaining at least (pc * 100) percent of the total variance.
print	logical expression whether a plot (ggplot2) of sample selection for reference analysis is shown in PCA space (TRUE or FALSE).

philipp-baumann/simplerspec documentation built on Oct. 3, 2023, 12:13 p.m.