FSbyVar: Biological feature (such as gene) selection based on the most...

In xtsvm/CancerSubtypes: Cancer subtypes identification, validation and visualization based on multiple genomic data sets

Description

Biological feature (such as gene) selection based on the most variance.

Usage

FSbyVar(Data, cut.type = "topk", value)

Arguments

Data	A data matrix representing the genomic data measured in a set of samples. For the matrix, the rows represent the genomic features, and the columns represents the samples.
cut.type	A character value representing the selection type. The optional values are shown below: "topk" "cutoff"
value	A numeric value. If the cut.type="topk", the top number of value features are selected. If the cut.type="cutoff", the features with (var>value) are selected.

Value

An extracted subset data matrix with most variance features from the input data matrix.

Author(s)

Xu,Taosheng [e-mail], Thuc Le [e-mail]

Examples

data(GeneExp)
data1=FSbyVar(GeneExp, cut.type="topk",value=1000) 

xtsvm/CancerSubtypes documentation built on May 4, 2019, 1:26 p.m.