File:Doubledip.png: Revision history

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22 August 2022

  • curprev 14:1914:19, 22 August 2022‎ Brb talk contribs‎ 611 bytes +611‎ <pre> ng <- 1000 # number of genes ns <- 100 # number of samples k <- 2 # number of groups alpha <- .001 # cutoff of selecting sig genes set.seed(1) x = matrix(rnorm(ng * ns), nr= ns) # samples x features hc = hclust(dist(x)) plot(hc) grp = cutree(hc, k=k) # vector of group membership ex <- t(x) r1 <- genefilter::rowttests(ex, factor(grp)) sum(r1$p.value < alpha) # 2 hist(r1$p.value) i <- which(r1$p.value < alpha) i1 <- i[1] ; i2 <- i[2] plot(x[, i1], x[, i2], col = grp, pch= 16, cex=1...
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