Hierrachical Clustering of Array Columns (Samples) using Pearson Correlation
library (geneplotter) f.distCol.Pearson <- function (x.mx) # correlation among columns { dist.mx <- 1 - cor (x.mx, method = "pearson") dist.dmx <- as.dist (dist.mx) return (dist.dmx) } x.hclust <- hclust (d = f.distCol.Pearson (x.mx)) plot ( x.hclust, main = "", xlab = "1 - Pearson Correlation")