TraMineR (version 1.4-1)

seqdss: Extract distinct states sequence from a sequence object

Description

Extract distinct states sequence from a sequence object. Returns a sequence object containing the distinct states sequences, ie the durations are not taken into account. The DSS contained in 'D-D-D-D-A-A-A-A-A-A-A-D' is 'D-A-D'. Durations can be extracted with the 'seqdur' function.

Usage

seqdss(seqdata, with.miss=FALSE)

Arguments

seqdata

a sequence object as defined by the seqdef function.

with.miss

if set to TRUE, missing statuses (gaps in sequences) also appear in the DSS. See seqdef on options for handling missing values when creating sequence objects.

Value

• a sequence object containing the distinct state sequence (DSS) for each sequence in the object given as argument.

See Also

seqdur.

Examples

## Creating a sequence object with the columns 13 to 24 
## in the 'actcal' example data set
data(actcal)
actcal.seq <- seqdef(actcal,13:24)

## Retrieving the DSS
actcal.dss <- seqdss(actcal.seq)
  
## Displaying the DSS for the first 10 sequences
actcal.dss[1:10,]