seqnum {TraMineR} | R Documentation |
Transform into a sequence object with numerical alphabet.
Description
The function seqnum
transforms the provided state sequence object into an equivalent sequence object in which the original alphabet is replaced with an alphabet of numbers ranging from 0
to (nbstates-1)
.
Usage
seqnum(seqdata, with.missing=FALSE)
Arguments
seqdata |
a state sequence object as defined by the |
with.missing |
logical: Should missing elements in the sequences be turned into numerical values as well? The code for missing values in the sequences is retrieved from the |
Details
The first state (for example 'A'
) is coded with the value 0
, the second state (for example 'B'
) is coded with the value 1
, etc... The function returns a sequence object containing the original sequences coded with the new numerical alphabet
ranging from 0
to (nbstates-1)
Author(s)
Alexis Gabadinho
See Also
Examples
data(actcal)
actcal.seq <- seqdef(actcal,13:24)
## The first 10 sequences in the actcal.seq
## sequence object
actcal.seq[1:10,]
alphabet(actcal.seq)
## The first 10 sequences in the actcal.seq
## sequence object with numerical alphabet
seqnum(actcal.seq[1:10,])
## states A,B,C,D are now coded 0,1,2,3
alphabet(seqnum(actcal.seq))