This document introduces RMA (Robust Multi-array Analysis) method, which is used to normalize and summarize probe-level intensity measurements from Affymetrix Gene Chips ®.
The document describes the three key tasks of probe summarization algorithms: background correction, normalization, and probe summarization. It details how these steps are implemented in the RMA (Robust Multi-array Analysis) method used by Agilent GeneSpring GX software.
Specific instructions are provided for analyzing Affymetrix expression data using both GeneSpring GX 7.3.1 and GeneSpring GX 9.0. The guide covers importing data, selecting file formats and genomes, choosing preprocessing algorithms (RMA or GC RMA), adding sample attributes, and configuring probe summarization options.
| Supported Software Versions | GeneSpring GX 7.3.1 and GeneSpring GX 9.0 |
|---|---|
| Supported Chip Type | Affymetrix Gene Chips |
RMA (Robust Multi-array Analysis) is a method for normalizing and summarizing probe-level intensity measurements from Affymetrix Gene Chips.
Users can select the 'RMA' or 'GC RMA' preprocessing algorithm when importing data.