Affymetrix© File Formats

This option supports the parsing and loading of Affymetrix© Microarray Suite MAS <http://www.affymetrix.com/products/software/specific/mas.affx> 4.0/5.0 formatted data. related

Data Format Features

The MAS data format has the following salient features:

· Associated p-values to indicate statistical significance of detection.

· Background and Noise statistics.

· Experiment protocol information like Reagents, Samples used.

· Processed data (scaling and normalization used).

The following section provides an example of a partial gene expression dataset in the MAS 5.0 file format that can be loaded by the application. There are 3 reporters (the 3 rows at the end) shown in this example, but a complete dataset would have as many rows as reporters in a given assay.