Hello friends

I am doing micro-array data analysis using the Affymetrix data  ,then i created the expression matrix,  now the  file contain multiple probe representing the single genes, Can any one share your knowledge on R script to merge the probes Id or any related articles.

Best Regards

Mathavan M

This is a classic question. Here's a few previous posts that are relevant:

• Use probesets with highest baseline expression for differntial gene
• How to combine expression values of multiple probes for one gene
• LIMMA - summarization of Illumina probes for same gene
• collapsing redundant probe sets of Affymetrix Chips
• microarray: dealing with multi probes for one gene
• how deal with multiplicate affy probes?