Principal Components Analysis with "R" (Part: 001)

This is the first "post" of my new adventure with a software that I consider very interesting and that give to people the oportunity to work with Chemometrics ("R" is free).
To follow these examples, yo can download the following article:
"Multivariate Statistical Analysis using the R package chemometrics"

Decidimos seleccionar 5 CP, que explican casi el 80% de las varianza en este ejemplo.

We decided to select 5 PCs, which explain almost the 80% of the variance for this example.