spectacles (version 0.5-2-2)

separate: Separates a Spectra* object into a calibration and a validation set.

Description

Separates a Spectra* object into a calibration and a validation set.

Usage

# S4 method for Spectra
separate(obj, calibration)

Arguments

obj

an object inheriting from class SpectraDataFrame

calibration

The fraction of the dataset to be put in the calibration set

Value

An list with two SpectraDataFrame objects, one for the calibration, and the other for the validation.

Examples

# NOT RUN {
# Loading example data
data(australia)
spectra(australia) <- sr_no ~ ... ~ 350:2500

l <- separate(australia, calibration=0.7)
# The result is a list of two Spectra* objects
str(l)
lapply(l, nrow)
# }