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mixOmics (version 5.0-3)

Omics Data Integration Project

Description

The package provide statistical integrative techniques and variants to analyse highly dimensional data sets: regularized CCA and sparse PLS to unravel relationships between two heterogeneous data sets of size (nxp) and (nxq) where the p and q variables are measured on the same samples or individuals n. These data may come from high throughput technologies, such as omics data (e.g. transcriptomics, metabolomics or proteomics data) that require an integrative or joint analysis. However, mixOmics can also be applied to any other large data sets where p + q >> n. rCCA is a regularized version of CCA to deal with the large number of variables. sPLS allows variable selection in a one step procedure and two frameworks are proposed: regression and canonical analysis. Numerous graphical outputs are provided to help interpreting the results. Recent methodological developments include: sparse PLS-Discriminant Analysis, Independent Principal Component Analysis and multilevel analysis using variance decomposition of the data.

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Version

Install

install.packages('mixOmics')

Monthly Downloads

290

Version

5.0-3

License

GPL (>= 2)

Maintainer

Last Published

September 1st, 2014

Functions in mixOmics (5.0-3)

multilevel

Multilevel analysis for repeated measurements (cross-over design)
pca

Principal Components Analysis
image

Plot the cross-validation score.
pheatmap.multilevel

Clustered heatmap
ipca

Independent Principal Component Analysis
wrapper.rgcca

mixOmics wrapper for Regularised Generalised Canonical Correlation Analysis (rgcca)
liver.toxicity

Liver Toxicity Data
yeast

Yeast metabolomic study
splsda

Sparse Partial Least Squares Discriminate Analysis (sPLS-DA)
plot.rcc

Canonical Correlations Plot
plsda

Partial Least Squares Discriminate Analysis (PLS-DA).
linnerud

Linnerud Dataset
scatterutil

Graphical utility functions from ade4
data.simu

Simulation study for multilevel analysis
multidrug

Multidrug Resistence Data
perf

Compute evaluation criteria for PLS, sPLS, PLS-DA and sPLS-DA
print

Print Methods for CCA, (s)PLS, PCA and Summary objects
spca

Sparse Principal Components Analysis
plotIndiv

Plot of Individuals (Experimental Units)
cim

Clustered Image Maps (CIMs) ("heat maps")
pcatune

Tune the number of principal components in PCA
wrapper.sgcca

mixOmics wrapper for Sparse Generalised Canonical Correlation Analysis (sgcca)
select.var

Output of selected variables
plot.perf

Plot for model performance
vac18

Vaccine study Data
nipals

Non-linear Iterative Partial Least Squares (NIPALS) algorithm
plotVar

Plot of Variables
image.estim.regul

Plot the cross-validation score.
tune.rcc

Estimate the parameters of regularization for Regularized CCA
prostate

Human Prostate Tumors Data
predict

Predict Method for PLS, sPLS, PLS-DA or sPLS-DA
s.match

Plot of Paired Coordinates
summary

Summary Methods for CCA and PLS objects
spls

Sparse Partial Least Squares (sPLS)
mat.rank

Matrix Rank
estim.regul

Estimate the parameters of regularization for Regularized CCA
vip

Variable Importance in the Projection (VIP)
srbct

Small version of the small round blue cell tumors of childhood data
sipca

Independent Principal Component Analysis
plot3dVar

Plot of Variables in three dimensions
tune.multilevel

Tuning functions for multilevel analyses
rcc

Regularized Canonical Correlation Analysis
nearZeroVar

Identification of zero- or near-zero variance predictors
imgCor

Image Maps of Correlation Matrices between two Data Sets
tune.pca

Tune the number of principal components in PCA
breast.tumors

Human Breast Tumors Data
valid

Compute validation criterion for PLS, sPLS, PLS-DA and sPLS-DA
pls

Partial Least Squares (PLS) Regression
nutrimouse

Nutrimouse Dataset
internal-functions

Internal Functions
network

Relevance Network for (r)CCA and (s)PLS regression
jet.colors

Jet Colors Palette
plot3dIndiv

Plot of Individuals (Experimental Units) in three dimensions