# Multivariate Statistical Analysis in Chemometrics

## Documentation for package ‘chemometrics’ version 1.4.2

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

chemometrics-package | This package is the R companion to the book "Introduction to Multivariate Statistical Analysis in Chemometrics" written by K. Varmuza and P. Filzmoser (2009).
alr | additive logratio transformation
ash | ash data
cereal | Data from cereals
chemometrics | This package is the R companion to the book "Introduction to Multivariate Statistical Analysis in Chemometrics" written by K. Varmuza and P. Filzmoser (2009).
clr | centered logratio transformation
clvalidity | compute and plot cluster validity
delintercept | Delete intercept from model matrix
drawMahal | Draws ellipses according to Mahalanobis distances
glass | glass vessels data
glass.grp | glass types of the glass data
hyptis | Hyptis data set
ilr | isometric logratio transformation
knnEval | kNN evaluation by CV
lassocoef | Plot Lasso coefficients
lassoCV | CV for Lasso regression
lmCV | Repeated Cross Validation for lm
Moutlier | Plots classical and robust Mahalanobis distances
mvr_dcv | Repeated double-cross-validation for PLS and PCR
nipals | PCA calculation with the NIPALS algorithm
NIR | NIR data
nnetEval | Neural network evaluation by CV
PAC | GC retention indices
pcaCV | Determine the number of PCA components with repeated cross validation
pcaDiagplot | Diagnostics plot for PCA
pcaVarexpl | PCA diagnostics for variables
Phenyl | Phenyl data set
plotcompmvr | Component plot for repeated DCV
plotcompprm | Component plot for repeated DCV of PRM
plotpredmvr | Plot predictions from repeated DCV
plotpredprm | Plot predictions from repeated DCV of PRM
plotprm | Plot results from robust PLS
plotresmvr | Plot residuals from repeated DCV
plotresprm | Plot residuals from repeated DCV of PRM
plotRidge | Plot results of Ridge regression
plotSEPmvr | Plot SEP from repeated DCV
plotSEPprm | Plot trimmed SEP from repeated DCV of PRM
plotsom | Plot SOM results
pls1_nipals | PLS1 by NIPALS
pls2_nipals | PLS2 by NIPALS
pls_eigen | Eigenvector algorithm for PLS
prm | Robust PLS
prm_cv | Cross-validation for robust PLS
prm_dcv | Repeated double-cross-validation for robust PLS
ridgeCV | Repeated CV for Ridge regression
RPvectors | Generating random projection directions
sd_trim | Trimmed standard deviation
stepwise | Stepwise regression
svmEval | Support Vector Machine evaluation by CV
treeEval | Classification tree evaluation by CV