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chemometrics (version 1.4.1)

Multivariate Statistical Analysis in Chemometrics

Description

R companion to the book "Introduction to Multivariate Statistical Analysis in Chemometrics" written by K. Varmuza and P. Filzmoser (2009).

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Install

install.packages('chemometrics')

Monthly Downloads

3,726

Version

1.4.1

License

GPL (>= 3)

Maintainer

P. Filzmoser

Last Published

August 3rd, 2016

Functions in chemometrics (1.4.1)

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).
clr

centered logratio transformation
cereal

Data from cereals
glass

glass vessels data
alr

additive logratio transformation
drawMahal

Draws ellipses according to Mahalanobis distances
delintercept

Delete intercept from model matrix
glass.grp

glass types of the glass data
ash

ash data
clvalidity

compute and plot cluster validity
knnEval

kNN evaluation by CV
lassoCV

CV for Lasso regression
lassocoef

Plot Lasso coefficients
lmCV

Repeated Cross Validation for lm
hyptis

Hyptis data set
Moutlier

Plots classical and robust Mahalanobis distances
ilr

isometric logratio transformation
mvr_dcv

Repeated double-cross-validation for PLS and PCR
nipals

PCA calculation with the NIPALS algorithm
NIR

NIR data
plotpredmvr

Plot predictions from repeated DCV
plotcompprm

Component plot for repeated DCV of PRM
plotcompmvr

Component plot for repeated DCV
nnetEval

Neural network evaluation by CV
PAC

GC retention indices
pcaVarexpl

PCA diagnostics for variables
plotpredprm

Plot predictions from repeated DCV of PRM
pcaCV

Determine the number of PCA components with repeated cross validation
Phenyl

Phenyl data set
pcaDiagplot

Diagnostics plot for PCA
plotresmvr

Plot residuals from repeated DCV
pls_eigen

Eigenvector algorithm for PLS
plotsom

Plot SOM results
plotprm

Plot results from robust PLS
plotSEPmvr

Plot SEP from repeated DCV
plotSEPprm

Plot trimmed SEP from repeated DCV of PRM
plotRidge

Plot results of Ridge regression
plotresprm

Plot residuals from repeated DCV of PRM
pls1_nipals

PLS1 by NIPALS
pls2_nipals

PLS2 by NIPALS
treeEval

Classification tree evaluation by CV
RPvectors

Generating random projection directions
prm

Robust PLS
prm_cv

Cross-validation for robust PLS
svmEval

Support Vector Machine evaluation by CV
prm_dcv

Repeated double-cross-validation for robust PLS
stepwise

Stepwise regression
sd_trim

Trimmed standard deviation
ridgeCV

Repeated CV for Ridge regression