## Annotation / Add annotations to the data

### Description

This tool appends annotations to the expression data for the selected Affymetrix, Illumina or Agilent gene list.

### Parameters

None

### Details

Currently, Affymetrix probe set IDs, Illumina Target IDs and Agilent probe names can be annotated.

### Output

This tool writes a data file where annotation columns are appended to the gene expression value columns. Annotations contain chromosome location, pathway information, and links to databases such as Pubmed and RefSeq.

### References

This tool utilizes the Bioconductor package annaffy.