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Bonjour Sonia,<br>
<br>
Ce n'est pas la fonction seqrplot qui permet spécifiquement
d'obtenir plusieurs séquences représentatives. C'est la fonction
seqrep qui est appellée également par seqrplot. Pour extraire
plusieurs séquences représentatives avec seqrep, il faut simplement
utiliser l'option appropriée (trep ou nrep). Je vous encourage à
regarder l'aide: help(seqrep).<br>
<br>
Salutations,<br>
Alexis.<br>
<br>
Le 30. 04. 12 10:50, so.bellit a écrit :
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Bonjour, <br>
<br>
J'ai effectué une classification ascendante hiérarchique à
partir de Traminer. J'ai utilisé la fonction seqrep pour retrouver
le médoid de chaque classe. De plus, par la fonction print
(medoid,...), je peux aussi récupérer le numéro de ligne
correspondant à la trajectoire représentative. Cependant, lorsque
j'utilise la fonction seqrplot qui permet d'obtenir plusieurs
séquences représentatives, je ne parviens pas à récupérer le
numéro de ligne ou tout simpement l'dentifiant auquel elles
correspondent. Auriez vous une idée là dessus?<br>
<br>
Cordialement<br>
Sonia <br>
<br>
<br>
<br>
<blockquote style="padding-left: 5px; margin-left: 5px;
border-left: 2px solid #ff0000">> Message du 30/04/12 09:34<br>
> De : "Gilbert Ritschard" <br>
> A : "Users questions" <br>
> Copie à : <br>
> Objet : Re: [Traminer-users] Nominal autocorrelation<br>
><br>
> Hi Peter,<br>
> <br>
> Using the seqformat() function to transform your sequences
into SRS <br>
> (shifted-replicated sequence) form (see Ritschard &
al., 2009), it is <br>
> easy to compute some nominal auto-association of any order.
Here is an <br>
> example where we compute an auto-cv of order 1 (cv being
Cramer's v).<br>
> <br>
> libarary(TraMineR)<br>
> data(biofam)<br>
> biofam.srs <- seqformat(biofam[,10:25], from="STS",
to="SRS")<br>
> nc <- ncol(biofam.srs)<br>
> x1 <- table(biofam.srs[,nc],biofam.srs[,nc-1])<br>
> chisq <- chisq.test(x1, correct=FALSE)$statistic<br>
> names(chisq) <- ""<br>
> cv1 <- sqrt(chisq/(sum(x1)*min(dim(x1)-1)))<br>
> print(cv1)<br>
> <br>
> Reference for the SRS format:<br>
> <br>
> Ritschard, G., Gabadinho, A., Studer, M. & Müller, N.S.
(2009), <br>
> "Converting between various sequence representations", In
Ras, Z. & <br>
> Dardzinska, A. (eds) /Advances in Data Management/. Series:
/Studies in <br>
> Computational Intelligence/. Volume 223, pp. 155-175.
Berlin: Springer. <br>
> (preprint available on the TraMineR page)<br>
> <br>
> Cheer.<br>
> Gilbert<br>
> <br>
> On 24-Apr-12 21:15, Peter Flom wrote:<br>
> ><br>
> > Good afternoon<br>
> ><br>
> > I just got TraMineR – what a great package! It’s going
to save me a <br>
> > lot of time and effort.<br>
> ><br>
> > I have a data set with a bunch of sequences of nominal
states (for <br>
> > now, anyway, 80 sequences, with each having one of two
states, but it <br>
> > may also be necessary to do this with 4 states and
more sequences)<br>
> ><br>
> > My client wants some nominal equivalent of
autocorrelation. Looking <br>
> > through the documentation, the closest thing seems to
be turbulence, <br>
> > or perhaps inverse of turbulence, but that’s per
sequence, not per <br>
> > data set. Of course, I could find mean or median
turbulence, or mean <br>
> > or median inverted turbulence, but I wondered if there
is some already <br>
> > developed measure for what I want.<br>
> ><br>
> > Thanks in advance<br>
> ><br>
> > Peter<br>
> ><br>
> > Peter Flom<br>
> ><br>
> > Peter Flom Consulting<br>
> ><br>
> > <a class="moz-txt-link-freetext" href="http://www.statisticalanalysisconsulting.com/">http://www.statisticalanalysisconsulting.com/</a><br>
> ><br>
> > <a class="moz-txt-link-freetext" href="http://www.IAmLearningDisabled.com">http://www.IAmLearningDisabled.com</a><br>
> ><br>
> ><br>
> ><br>
> > _______________________________________________<br>
> > Traminer-users mailing list<br>
> > <a class="moz-txt-link-abbreviated" href="mailto:Traminer-users@lists.r-forge.r-project.org">Traminer-users@lists.r-forge.r-project.org</a><br>
> >
<a class="moz-txt-link-freetext" href="https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/traminer-users">https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/traminer-users</a><br>
> <br>
> -- <br>
> Gilbert Ritschard, Department of Economics and<br>
> Institute for Demographic and Life Course Studies,<br>
> University of Geneva, 40, bd du Pont-d'Arve, CH-1211 Genève
4, Switzerland<br>
> <a class="moz-txt-link-freetext" href="http://mephisto.unige.ch">http://mephisto.unige.ch</a><br>
> <br>
> _______________________________________________<br>
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>
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> </blockquote>
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