I hope you all are doing good. I am interested in analyzing microarray data of tumor gene expression. I want to identify the differentially expressed gene among wildtype VS Knockout. And to check their role, I used the AltAnalyze tool for normalization, heatmap, clustering and pathway study. Is anyone who familiar with this tool and its reliability or suggest me good and reliable tool license free. Can someone recommend me good article/material, How to dig out the meaningful information/hypothesis from microarray data results? I am a beginner in this field, I will be highly obliged for your valuable suggestions. I will be waiting for your answers. Thank you.