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Dear Alois,<br>
<br>
I will use the following example (taken from ?seqtree)<br>
<br>
<pre>library(TraMineR)
data(mvad)
## Defining a state sequence object
mvad.seq <- seqdef(mvad[, 17:86])
## Building a seqtree using a specified distance matrix
mvad.dhd <- seqdist(mvad.seq, method="DHD")
seqt <- seqtree(mvad.seq~ male + Grammar + funemp + gcse5eq + fmpr + livboth,
data=mvad, R = 1000, diss=mvad.dhd)
</pre>
<br>
<br>
seqtreedisplay works in the same way as seqplot (difference are
explained in ?seqtreedisplay). So you may use type="f" to plot the
most frequent sequences (or all). You can set the following options
<br>
space=0 (no blank space between sequences)<br>
border=NA (no border)<br>
tlim = 0 (plot all sequence, if you set tlim=1:5, then the five
most frequent one will be potted)<br>
<br>
This ends up with the following code: <br>
seqtreedisplay(seqt, type="f", space=0, border=NA, tlim=0)<br>
<br>
I think that there are other way to order sequence index plot that
produce much more readable output. For instance, you may use the
first dimension of an MDS.<br>
<br>
mds <- cmdscale(mvad.dhd, k=1)<br>
<br>
The sorting of the sequence in index-plot (type="I") is done through
the sortv argument<br>
<br>
seqtreedisplay(seqt, type="I", sortv=mds)<br>
<br>
<br>
Hope this helps,<br>
<br>
Matthias Studer<br>
<br>
Le 15.02.2012 16:44, Alois Ganter a écrit :
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<p class="MsoPlainText"><span lang="EN-US">How can I generate a
sequence tree that
contains sequence index plots with sequences arranged in
descending/ascending frequency
order? Stata has the egen rank () command to compile a
sequence index plots this
way. How does it work with seqtreedisplay()?<o:p></o:p></span></p>
<p class="MsoPlainText"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:
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lang="EN-US">Thanks for your help.<o:p></o:p></span></b></p>
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<p class="MsoNormal"><b><span
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lang="EN-US">Best,<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span
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<p class="MsoNormal"><b><span
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<p class="MsoNormal"><b><span
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Alois Ganter<o:p></o:p></span></b></p>
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