assessSD {affycomp}R Documentation

SD Assessment functions

Description

Assessment function for standard deviation estimates. Takes a dilution data exprSet-class and returns a list with necessary information to create assessment plot.

Usage

assessSD(exprset,method.name=NULL,logx=FALSE)

Arguments

exprset An exprSet-class containing exrpession measures for Affymetrix's spike-in experiment.
method.name Name of expression measure being assessed.
logx Logical. If TRUE expression is logged for plot. See details.

Details

assessSD does the assessment for Figure 7. This requires the exprSet to have standard error estaimtes for the expression measure. Some expression (such as dChip) will have SEs for the original scale. Others, like RMA will have them for the log scale. For orignal scales, making logx=TRUE is recommended.

Value

Lists with the necessary information to make the Figures.

Author(s)

Rafael A. Irizarry


[Package affycomp version 1.4.3 Index]