arrayWeights {limma}R Documentation

Array Quality Weights

Description

Estimates relative quality weights for each array a multi-array experiment with replication.

Usage

arrayWeights(y, fit)

Arguments

y the data object used to estimate fit. Can be of any class which can be coerced to matrix, including matrix, MAList, marrayNorm or exprSet.
fit MArrayLM fitted model object

Details

Estimates the relative reliability of each array by measuring how well the expression values for that array follow the linear model.

Value

Numeric vector of weights, so same length as ncol(fit).

Author(s)

Gordon Smyth

See Also

An overview of LIMMA functions for reading data is given in 3.ReadingData.

Examples

## Not run: 
fit <- lmFit(y, design)
arrayWeights(y, fit)
## End(Not run)

[Package limma version 1.8.18 Index]