expressionSetList {XDE} | R Documentation

## Example of ExpressionSetList

### Description

Object of class `ExpressionSetList` containing three studies. Each element in the list is an `ExpressionSet`

### Usage

    data(expressionSetList)

### Details

Parmigiani et al. (2004) performed a cross-study analysis of three lung cancer studies. The studies used in this analysis were merged by UniGene identifiers to obtain a set of 3,171 gene. The R experiment data package `lungExpression` that was developed to facilitate the reproducibility of this analysis contains the three studies as ExpressionSets. Here, we take a random sample of 500 features from one study (the "stanford" study), and split this study into three artificial studies that each contain 4 squamous carcinomas and 3 adenocarcinomas. The three artificial studies are then used to create an instance of the `ExpressionSetList` class.

See Garber et al. (2001) for the raw data and description of the `stanford` study.

### Source

The experiment data package lungExpression (www.bioconductor.org)

### References

Parmigiani et al. (2004) A cross-study comparison of gene expression studies for the molecular classification of lung cancer, Clin Cancer Res, 10(9): 2922-2927

Garber et al. (2001) Diversity of gene expression in adenocarcinoma of the lung, PNAS, 98:13784-13789

### Examples

    data(expressionSetList)

[Package XDE version 2.40.0 Index]