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Questions related from Aparna Sampath
Hi I was stuck while trying to get the top genes that had the highest expression variance across patients. I have a gene expression data and I would like to choose only lets say top 200 genes...
06 June 2011 4,396 0 View
Hi All I am completely new to R and I am currently working on a project using R. I would like to know, how do we normalize using R for gene expression data.
05 May 2011 3,605 1 View
Hi All Normalization is very important for clustering gene expression data. I am working on some cancer-related datasets and I came across this paper which does normalization of both rows and...
05 May 2011 6,935 10 View
Hi All I came across this paper which does normalization of both rows and columns, and as far as I know we cannot normalize rows and columns simultaneously and also most people prefer to either...
05 May 2011 3,952 6 View
Hi all, I see the use of PERL is largely dominating the research field these days, and as a fresh graduate, I think it is important to get hands-on experience in PERL programming for better...
02 February 2011 2,720 2 View
when we compare two tools, is it possible to compare the fold change, since when I log transform their values, one accepts negative values while other tool does not, so the analysis goes wrong....
08 August 2010 3,006 2 View
Anyone has any idea about pvalue and fold change in gene expression analysis?
07 July 2010 6,178 11 View
