[Traminer-users] plots with group option vs separate plots

[Gilbert Ritschard]

Hi Jeremy,

Thank you for your question. Could you provide a reproducible working example? Indeed you are right, you should get the same plot in both cases. You do not provide enough information, however, to allow identifying the source of the problem.

Your question certainly is of interest for many TraMineR users and future users.  I would therefore suggest you post your question on StackOverflow (see http://mephisto.unige.ch/traminer/contrib.shtml) using the "traminer" tag which is searchable, unlike this r-forge list.

Best.
Gilbert



From: traminer-users-bounces at lists.r-forge.r-project.org [mailto:traminer-users-bounces at lists.r-forge.r-project.org] On Behalf Of Jeremy Reynolds
Sent: Monday, January 13, 2014 22:09
To: traminer-users at lists.r-forge.r-project.org
Subject: [Traminer-users] plots with group option vs separate plots

Hello,
I have been making sequence plots, and I seem to be getting very different results when I use the "group" option of the seqdplot or seqIplot command than when I draw separate plots for each subgroup.
After creating a sequence object and performing optimal matching using PAM, I have chosen a 4 cluster solution.  I then create a single plot that shows the distribution across states in each of the 4 clusters like this:

seqdplot(seq.hc, group = pam5vs$clustering$cluster4, border = NA, title="pam5vs")
If I subset the data and make a separate plot for one of the 4 clusters as in the code below, the N matches the results above (the total N and the N across the states), but I get a very different impression of how the cases are distributed across the states in the two graphs.  Am I doing something wrong?  I would be happy to provide more detail if needed.
Thanks,

Jeremy

cluster4 <- subset(bhps, pam5vs$clustering$cluster4==(6875))
seq.cluster4 <- seqdef(cluster4 [4:21], labels = c("M", "S", "F", "O", "U" ))
seqdplot(seq.cluster4, border = NA, title="pam5vs cluster 6875")

--
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Dr. Jeremy Reynolds
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