dataTrim: DataTrim using pseudo winsorization algorithm

Description Usage Arguments Value Author(s) References Examples

Description

DataTrim cleans the data through a pseudo winsorization algorithm. First, the mean and SD are calculated. Then, any values above 2SD are trimmed.The mean is recalculated and any values less then 2 SD are trimmed.This process of cutting 2 SD above the mean and then 2 SD below the mean is repeated until no further cuts are possible.

Usage

1
dataTrim(chipdata)

Arguments

chipdata

chipdata is a vector of chipdata from microarray chips.

Value

Returns a vector of trimmed chipdata representing background based on pseudo winsorization algorithm.

Author(s)

Choudary L Jagarlamudi

References

Dozmorov I,Centola,M. An associative analysis of gene expression array data. Bioinformatics.2003 Jan22;19(2):204-11

Knowlton N,Dozmorov I, Centola M. Microarray data Analysis Tool box(MDAT): for normalization,adjustment and analysis of gene expression data. Bioonformatics.2004 Dec 12;20(18):3687-90

Examples

1
 #see normalize for details

diffGeneAnalysis documentation built on Nov. 1, 2018, 5 a.m.