data:sample.ExpressionSet {Biobase} | R Documentation

## Dataset of class 'ExpressionSet'

### Description

The expression data are real but anonymized. The data are from an experiment that used Affymetrix U95v2 chips. The data were processed by dChip and then exported to R for analysis.

The data illustrate `ExpressionSet-class`, with `assayData` containing the required matrix element `exprs` and an additional matrix `se.exprs`. `se.exprs` has the same dimensions as `exprs`.

The phenoData and standard error estimates (se.exprs) are made up. The information in the "description" slot is fake.

### Usage

    data(sample.ExpressionSet)

### Format

The data for 26 cases, labeled A to Z and 500 genes. Each case has three covariates: sex (male/female); type (case/control); and score (testing score).

### Examples

    data(sample.ExpressionSet)

[Package Biobase version 2.4.1 Index]