# Parsing gene expression value for a list of genes from GEO

I am looking for the gene expression data in GEO GSE15543 with the following keywords,

(Pancreatic Beta Cells) AND "Homo sapiens"[porgn:__txid9606]


I would like to parse the gene expression value of a list of genes from all the samples reported in any particular study.I understand there are two different formats for downloading datasets, SOFT and MINiML.

I have downloaded the soft.gz file and I am using BioConductor to read the contents from soft file using the instructions given here . The file has the content that I 'm looking for , I have checked the contents on the geo2r webpage. I'm still facing challenge in finding out how to fetch out the gene expression values for a list of genes. Any suggestions?

From the files that I download, I wish to parse the gene expression value and the Sample Title and Sample Description so that I can classify the values based on disease state and control state. Any suggestions on which format can be downloaded for the above-mentioned task?