eigenMetabolites: Calculate eigenmetabolites as representatives

In krumsiek/MoDentify: Phenotype-driven module identification

Description

Calculate eigenmetabolites as representatives

Usage

eigenMetabolites(data, group = NULL, method = "PCA")

Arguments

data	a data.table containing the data, where columns correspond to variables and rows to observations.
group	A list containing the grouping (e.g. pathways) of the variables. If this is NULL all variables will be treated as they were in the same group and only one representation will be calculated
method	the method for calculating eigenmetabolites. Currently PCA and SVD are supported.

Value

list of two, M: data.table of eigenscores, expvar: full lists of explained variances

References

\insertRef

Langfelder2007MoDentify

Examples

data(qmdiab.data)
data(qmdiab.annos)

eigen.data <- eigenMetabolites(
  data = qmdiab.data,
  group = qmdiab.annos$Sub.pathway, method = "PCA"
)

krumsiek/MoDentify documentation built on March 25, 2021, 8:32 a.m.