search for: junyu

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2012 Apr 14
2
Calculate t.test for a matrix
...don't really understand how it works, I copied from genefilter. where: fac=as.factor(tt$group) It seemed to work for first column. I don't know how to use apply() to make it work on rest of column because I used tt$gene1 specifically. Or whatever method that works Thank you in advance. Junyu [[alternative HTML version deleted]]
2011 Dec 09
1
matrix calculation
...2) at three different time points (d0, d112 and d224). I'd like to calculate: animal A: A01 at d112 (4.6) - A01 at d0 (-5.4) A01 at d224 (3.9) - A01 at d0 (-5.4) A02 at d112 (5.9) - A02 at d0 (2.7) A02 at d224 (6.3) - A02 at d0 (2.7) Same for animal B and C I really appreciate your help. Junyu [[alternative HTML version deleted]]