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

Description Usage Arguments Value Author(s) Examples

View source: R/featureSelection.R

Description

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

Usage

1
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 taosheng.x@gmail.com, Thuc Le Thuc.Le@unisa.edu.au

Examples

1
2
data(GeneExp)
data1=FSbyVar(GeneExp, cut.type="topk",value=1000) 

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