stringdist (version 0.9.12)

seq_qgrams: Get a table of qgram counts for integer sequences

Description

Get a table of qgram counts for integer sequences

Usage

seq_qgrams(..., .list = NULL, q = 1L)

Value

A matrix containing q-gram profiles. Columns 1 to q contain the encountered q-grams. The ensuing (named) columns contain the q-gram counts per vector. Run the example for a simple overview.

Missing values in integer sequences are treated as any other number.

Arguments

...

Any number of (named) arguments that will be coerced with as.integer

.list

Will be concatenated with the ... argument(s). Useful for adding integer vectors named 'q'.

q

The size of q-gramming.

See Also

seq_dist, seq_amatch

Examples

# compare the 2-gram overlap between sequences 1:3 and 2:4
seq_qgrams(x = 1:3, y=2:4,q=2)

# behavior when NA's are present.
seq_qgrams(1:3,c(1,NA,2),NA_integer_)