[Traminer-users] how to sort a sequence plot (seqIplot) by more than one variable

[Joel Schwartz]

Hi Alexis,

I tried your suggestion and for some reason it's not working, even when I create a sorting variable that uses a single variable to sort on. Here's what I did:

# Original version, which works fine. See first attached file below, which shows plot is clearly sorted by f09as.
seqIplot(df.seq09, border = NA, withlegend = "right", sortv=df09$f09as)

# Create sorting variable
term.sort = order(df09$f09as)

# Create plot again, using sorting variable. This version of the plot is unsorted. See second attached file.
seqIplot(df.seq09, border = NA, withlegend = "right", sortv=term.sort)

I checked the sorting variable by looking at what it does to the original data frame and it looked exactly like it should, so the sorting variable doesn't seem to have a problem. Here's the command I used for that: df09[order(df09$f09as), ]  

Any idea what could be going wrong? If it would help to look at the sequence object or data.frame I'm working with, I can send those.

Thanks again,
Joel






On Jul 16, 2012, at 12:10 AM, Alexis gabadinho wrote:

> Hi Joel,
> 
> Use first the order function to create one single sorting variable, and then pass this variable to the seqIplot function. Here is an example with the biofam data frame where sequences are sorted by gender and birthyr
> 
> data(biofam)
> biofam.seq <- seqdef(biofam, 10:25)
> csort <- order(biofam$sex, biofam$birthyr)
> seqIplot(biofam.seq, sortv=csort)
> 
> All the best,
> Alexis
> 
> 
> Le 16. 07. 12 08:12, Joel Schwartz a écrit :
>> 
>> I'm a new TraMineR user and just ran into a problem while using the seqIplot function. I'm making a plot of hundreds of sequences. To make it possible to see patterns, I'm trying to sort the sequences by more than one variable. It works as expected when I sort by one variable. But when I try to sort by more than one, I get the exact same result as when I sort by one variable. 
>> 
>> Here are the two commands I'm using
>> 
>> # Sort by one variable
>> seqIplot(df.seq, border=NA, withlegend="right", sortv=df$s09as) 
>> 
>> # Sort by two variables
>> seqIplot(df.seq, border = NA, withlegend="right", sortv=c(df$s09as, df$f09as))  
>> 
>> I get the exact same plot either way, and no warnings or errors.
>> 
>> Is there a way to sort by more than one variable?
>> 
>> Thanks for your help.
>> 
>> Best Wishes,
>> Joel Schwartz
>> 
>> 
>> 
>> 
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