[Traminer-users] Problems passing/using group command

Hadrien Commenges hc at parisgeo.cnrs.fr
Wed Sep 19 08:33:33 CEST 2012

Hi Michael, 

I think you don't have to merge your demographic data with your states/events data, it seems to me that it's the source of your problem. For my part, I always work with two objects: the state/event object (sts object) and a dataframe with individual's id and variables. Try to convert your spell data without the status variable (educ4), and to get your individual's data in a separate dataframe. Then you can try : 

seqiplot(data.seq, group = individuals$group, ...) 

Hope it helps. 


----- Mail original -----

De: "Michael Corey" <michael.corey at gmail.com> 
À: Traminer-users at lists.r-forge.r-project.org 
Envoyé: Mercredi 19 Septembre 2012 02:17:05 
Objet: [Traminer-users] Problems passing/using group command 

Hi All, 

I'm having a problem using the group function in TraMineR. I have a data set that contains SPELL data, so multiple rows per case. I also have demographic data per case, at one row per case. I merge these together and end up with data that has a demographic covariate per row, so multiple rows per case. An example of this data would be: id startmin stopmin activity educ4 
4 1 20 work    HS 
4 20 40 play    HS 
8 1 15 sleep College 
8 15 40 work College 

I can make sequence data from this, but when I try to run a plot using the group command seqiplot ( atus . seq , group = atus . seqdata$educ4 , border = NA , 
withlegend = "right" , cex . plot =. 55 ) 

it tells me: > "Error: group must contain one value for each row in the sequence object" . 

I have gotten this to work with the example of the mvad data in the training manual, but I can't seem to get it to work with the groups, whether I link to the original demographic data, the merged data, or try to pass the covariates by seqformat and seqdef. Ideas? 
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