nir_milk

<p>Near infra red light (NIR) measurements are made at
152 wavelengths on 17 milk samples.  While milk runs through a
glass tube, infra red light is sent through the tube and the
amount of light passing though the tube is measured at
different wavelengths.  Each milk sample was additionally
analysed for fat, lactose, protein and dry matter.</p>

datasets

Utility package containing:
1) Facilities for working with grouped data: 'do' something to data
stratified 'by' some variables.
2) LSmeans (least-squares means), general linear estimates.
3) Restrict functions to a smaller domain.
4) Miscellaneous other utilities.

Søren Højsgaard

doBy

Groupwise Statistics, LSmeans, Linear Estimates, Utilities

Ulrich Halekoh

nir_milk function

<p>A list with two components
x Datafrane with infra red light amount at different wavelengths (column names are the wavelengths; just remove the leading X).
y Datafrane with response variables fat, protein,
lactose and dm (drymatter)</p>

nir_milk: nir_milk

Description

Usage

Arguments

Format

See Also

Examples