[Traminer-users] The substitution cost matrix is not symmetric

[Alexandre Pollien]

Hello,

When I use seqsubm, now I get this message:

>  contact.om<- 
seqdist(contact.seq,method="OM",indel=2,sm=cout,with.missing=FALSE, 
full.matrix=TRUE)
[>] 5764 sequences with 9 distinct events/states
[>] 496 distinct sequences
[>] min/max sequence length: 1/12
[>] computing distances using OM metric
[>] total time: 1.25 secs
Message d'avis :
The substitution cost matrix is not symmetric.

cout is computed with seqsubm (method="TRATE")


A surprising aspect is that it is not systematic (3 / 4)

I thought of a problem of missing value


Another amazing prompt is that seqdef shows this message:
>  contact.seq <- seqdef(contact, 2:15, states = contact.shortlab,labels 
= contact.lab)
[>] found missing values ('NA') in sequence data

...even when there is no missing in my data! (How can I seethe sequence 
containing the missing data?)


Does anyone have a idea?

Thank you very much

Best regards and good weekend

Alexandre



-- 
_______________________

Alexandre Pollien
FORS - Swiss foundation for research in social sciences
c/o University of Lausanne – Vidy
Route de Chavannes 33
CH - 1015 Lausanne

Switzerland

Tel.: +41 21 692 37 39

alexandre.pollien at fors.unil.ch
http://www.fors.unil.ch
_______________________

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