mRMRe: sampleStrata – R documentation

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sampleStrata

Accessor function for the 'sampleStrata' information in a mRMRe.Data object

Description

The sampleStrata vector consists of a sampling stratification that will be used in computing mutual information between features. If known batch effects or sample stratification is present between samples, identify such subsets using this.

Usage

## S4 method for signature 'mRMRe.Data'
sampleStrata(object)
## S4 replacement method for signature 'mRMRe.Data'
sampleStrata(object) <- value

Arguments

`object`	a `mRMRe.Data` object.
`value`	a factor vector identifying the stratification of samples.

Author(s)

Nicolas De Jay, Simon Papillon-Cavanagh, Benjamin Haibe-Kains

Examples

set.thread.count(2)
data(cgps)
feature_data <- mRMR.data(data = data.frame(cgps.ge))

# No stratification (default)
sampleStrata(feature_data)

# Random stratification 
sampleStrata(feature_data) <- as.factor(sample(c(0,1), 
  sampleCount(feature_data), replace=TRUE))
# Show result
sampleStrata(feature_data)

mRMRe

"Parallelized Minimum Redundancy, Maximum Relevance (mRMR) Ensemble Feature Selection"

v2.1.0

Artistic-2.0

Authors

Nicolas De Jay, Simon Papillon-Cavanagh, Catharina Olsen, Gianluca Bontempi, Benjamin Haibe-Kains

Initial release

2020-01-08