R: Number of matching positions between two sequences.

seqmpos {TraMineR} | R Documentation

## Number of matching positions between two sequences.

### Description

Returns the number of common elements, i.e., same states appearing at the same position in the two sequences.

### Usage

     seqmpos(seq1, seq2, with.missing=FALSE)

### Arguments

`seq1` | a sequence from a sequence object.
`seq2` | a sequence from a sequence object.
`with.missing` | if `TRUE`, gaps appearing at the same position in both sequences are also considered as common elements

.

### Author(s)

Alexis Gabadinho (with Gilbert Ritschard for help page)

### See Also

`seqLLCP`, `seqLLCS` .

### Examples

    data(famform)
    famform.seq <- seqdef(famform)

    seqmpos(famform.seq[1,],famform.seq[2,])
    seqmpos(famform.seq[2,],famform.seq[4,])

    ## Example with gaps in sequences
    a <- c(NA,"A",NA,"B","C")
    b <- c(NA,"C",NA,"B","C")

    ex1.seq <- seqdef(rbind(a,b))

    seqmpos(ex1.seq[1,], ex1.seq[2,])
    seqmpos(ex1.seq[1,], ex1.seq[2,], with.missing=TRUE)

[Package TraMineR version 2.2-3 Index]