how to get microarray data from GEO to analyze in WEKA

Question

[swapnil90]

I need to classify microarray data using WEKA tool. WEKA tool requires data in .arff format. How to get/preprocess any microarray data from GEO database so as to import in WEKA tool. Please suggest step wise procedure right from accessing GEO database till opening the .arff file of the same in WEKA tool.

Answer 1

[TriS]

What have you tried so far? Which part is not working?

Google is a good friend, it helped me find these links:

• http://weka.wikispaces.com/ARFF (especially the Creating an ARFF file link can be useful)
• http://weka.8497.n7.nabble.com/Excel-to-ARFF-td1761.html (excel --> arff)
• http://slavnik.fe.uni-lj.si/markot/csv2arff/csv2arff.php?do=instructions (csv --> arff)