search for: johanl

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2004 Jan 07
1
Analyzing dendrograms
...ty integrating them with the existing framework--I'm trying to write some resampling routines and sensitivity tests for tree objects. Perhaps this question should go to the r-devel list instead.... Yours, Walton Green > Date: Tue, 06 Jan 2004 12:49:59 +0100 > From: Johan Lindberg <johanl at kiev.biotech.kth.se> > Subject: RE: [R] Analyzing dendograms?? > To: <r-help at stat.math.ethz.ch> > Message-ID: <5.2.0.9.0.20040106122638.00badeb8 at kiev.biotech.kth.se> > Content-Type: text/plain; charset="iso-8859-1"; format=flowed > ...dendograms/hea...
2004 Jan 04
5
Analyzing dendograms??
I have used heatmap to visualize my microarray data. I have a matrix of M-values. I do the following. #The distance between the columns. sampdist <- dist(t(matrix[,]), method="euclidean") sclus <- hclust(sampdist, method="average") #The distance between the rows. genedist <- dist(matrix[,], method="euclidean") gclus <- hclust(genedist,
2004 Jan 03
0
error "evaluation nested too deeply" {was "Heatmap"}
I'm diverting this to the more appropriate mailing list, R-help, since heatmap() is standard R function. >>>>> "Johan" == Johan Lindberg <johanl at kiev.biotech.kth.se> >>>>> on Fri, 02 Jan 2004 10:04:14 +0100 writes: Johan> I am trying to plot a matrix of m-values in a heatmap Johan> with "average linkage". The rows are M-values of Johan> genes and the columns are my slides. I do the...
2004 Jan 15
2
A language technical question.
If I have 100 objekts in a folder and I prefer not to load them manually I wonder how I do this in R if using a for-loop. I was thinking initially to do something like this: infiles <- dir(pattern=".RData") for(i in length(infiles)) { load(infiles[i]) paste("kalle", i, sep="") <- saveLoadReference } But the line