I am concentrating the meta analysis of Microarray data, some of the data set does not have the paper. So give me some suggestions to use those data sets
different probe id for the same genes having different expression one up regulated other down regulated.
Give me some guidance meta analysis of microarray data
It is not clear from your question that what you actually want to do. Meta analysis is lager area. Any ways what ever you want to do go for any data. But raw data telated to any article will help you to know that what have been already done with that data, so that you can try to explore some thing different. Bioconductor using R is best for analysing gene expression data. All the best.