validExpr

object of class <code>ExprTreeSet</code>.

object

which

Extracts valid expression levels with unit names as row names from data.frame <code>data</code>.Usage<code>
validExpr(object, which = "UnitName")
</code>

methods

validExpr-methods

The package handles pre-processing, normalization, filtering
and analysis of Affymetrix GeneChip expression arrays, including exon
arrays (Exon 1.0 ST: core, extended, full probesets), gene arrays (Gene 1.0 ST)
and plate arrays on computers with 1 GB RAM only. It imports Affymetrix
.CDF, .CLF, .PGF and .CEL as well as annotation files, and computes e.g. RMA,
MAS5, FARMS, DFW, FIRMA, tRMA, MAS5-calls, DABG-calls, I/NI-calls. It is an R wrapper to
XPS (eXpression Profiling System), which is based on ROOT, an object-oriented
framework developed at CERN. Thus, the prior installation of ROOT is a prerequisite
for the usage of this package, however, no knowledge of ROOT is required.
ROOT is licensed under LGPL and can be downloaded from http://root.cern.ch.

Christian Stratowa

Processing and Analysis of Affymetrix Oligonucleotide Arrays
including Exon Arrays, Whole Genome Arrays and Plate Arrays

validExpr-methods function

Extracts valid expression levels with unit names as row names from data.frame <code>data</code>.

Usage

<code>
validExpr(object, which = "UnitName")
</code>

validExpr-methods: Get Valid Expression Levels

Description

Arguments

Value

Details

See Also