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7.0 years ago
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Hello there, I am a beginner, Now I initially know how to use "affy" package and "limma" package to find Affymetrix chip differentially expressed genes. But I do not know how to use the "marray" package to analyze Agilent chips, or how to use the lumi package to analyze "Illumina" chips. Although I have read the instructions for both packages and downloaded the data from GEO, I still do not know how to build a differential expression matrix step by step. Sincerely hope that your answer.
You should post what you tried and what the exact problem was.
Also, you are asking about two different packages, so this should be two separate questions.