Frequency table of the sequences
Computes the frequency table of the sequences (count and percent of each sequence).
a sequence object as defined by the
returns the table for the sequences at ranks '
format used for displaying the rownames (the sequences) in the output table.
Default is SPS format, which yields shorter and more readable sequence representations.
weighted argument has no effect when no weights were assigned to the state sequence object since weights default in that case to 1.
An object of class
stslist.freq. This is actually a state sequence object (containing a list of state sequences) with added attributes, among others the
freq attribute containing the frequency table. There are
plot methods for such objects. More sophisticated plots can be produced with the
Alexis Gabadinho (with Gilbert Ritschard for the help page)
Gabadinho, A., G. Ritschard, N. S. Müller and M. Studer (2011). Analyzing and Visualizing State Sequences in R with TraMineR. Journal of Statistical Software 40(4), 1-37.
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## Creating a sequence object from the actcal data set data(actcal) actcal.lab <- c("> 37 hours", "19-36 hours", "1-18 hours", "no work") actcal.seq <- seqdef(actcal, 13:24, labels=actcal.lab) ## 10 most frequent sequences in the data seqtab(actcal.seq) ## With tlim=0, we get all distinct sequences in the data set ## sorted in decreasing order of their frequency seqtab(actcal.seq, tlim=0) ## Example with weights ## from biofam data set using weigths data(ex1) ex1.seq <- seqdef(ex1, 1:13, weights=ex1$weights) ## Unweighted frequencies seqtab(ex1.seq, weighted=FALSE) ## Weighted frequencies seqtab(ex1.seq, weighted=TRUE)