Read a distance matrix from a file or data frame.

Read a distance matrix from a file or data frame.

read.dist(data, el1.column = 1, el2.column = 2, dist.columns = 3)

Arguments

data	a filename, data frame or matrix
el1.column	the column name or id specifying the first element
el2.column	the column name or id specifying the second element
dist.columns	the column name(s) or id(s) specifying the distance(s) between the two corresponding elements

Value

a distance matrix (or list of distance matrixes when there is more than one dist.columns) of type matrix

Examples

read.dist(cbind(c(1,1,1,2,2,3), c(2,3,4,3,4,4), 1:6, 6:1), dist.columns=c(3,4))
#> $`3`
#>      [,1] [,2] [,3] [,4]
#> [1,]    0    1    2    3
#> [2,]    0    0    4    5
#> [3,]    0    0    0    6
#> [4,]    0    0    0    0
#> 
#> $`4`
#>      [,1] [,2] [,3] [,4]
#> [1,]    0    6    5    4
#> [2,]    0    0    3    2
#> [3,]    0    0    0    1
#> [4,]    0    0    0    0
#>