text size + text-dendrogram
Helmut Kudrnovsky a ??crit :
dear R-friends,
i performed a cluster analysis (diana in package cluster) with about
300 samples.
two questions:
- if i plot a dendrogram of the analysis, i can??t read the labels of
the samples, because the size of the label-text is too big and the
label-text of 3 or 4 samples are mixed. so i can??t read which label
belongs to which sample. i tried to adjust the text-size with the
option cex (a numerical vector giving the amount by which plotting
text and symbols should be scaled relative to the default - from the
help for plot.default(graphics)), but it didn??t help. the problem
exist also, when i export the plot into a meta-file or a
postscript-file for further work with the dendrogram in an other
application.
- is it possible to export or save the dendrogram from the R-shell in
a kind of a text-dendrogramm like:
I
---------------------
I I
--------- ----------
I I I I
s...sample s1 s2 s3 s4
from : ?dendrogram hc <- hclust(dist(USArrests), "ave") (dend1 <- as.dendrogram(hc)) # "print()" method str(dend1) # "str()" method str(dend1, max = 2) # only the first two sub-levels The str functions will give a text representation of your tree.
os: win xp R: 2.0.0. with greetings from the snowy tyrol helli
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