seq2ngrams | R Documentation |
Extracts vector of n-grams present in sequence(s).
seq2ngrams(seq, n, u, d = 0, pos = FALSE)
seq |
a vector or matrix describing sequence(s). |
n |
|
u |
|
d |
|
pos |
|
A format of d
vector is discussed in Details of
count_ngrams
.
A character
matrix of n-grams, where every row corresponds to a
different sequence.
# trigrams from multiple sequences
seqs <- matrix(sample(1L:4, 600, replace = TRUE), ncol = 50)
seq2ngrams(seqs, 3, 1L:4)
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