Recodes an edgelist such that ids go from 1 to n

Recodes an edgelist such that ids go from 1 to n

recode(data, ...)

# S3 method for class 'data.frame'
recode(data, ...)

# S3 method for class 'matrix'
recode(data, ...)

Arguments

data

Edgelist as either a matrix or dataframe with ego and alter

...

Further arguments for the method (ignored)

Value

A recoded edgelist as a two-column matrix/data.frame depending on the class of data. The output includes an attribute called "recode" which contains a two column data.frame providing a mapping between the previous code and the new code (see the examples)

Details

Required for using most of the package's functions, as ids are used as a reference for accessing elements in adjacency matrices.

See also

edgelist_to_adjmat

Author

George G. Vega Yon

Examples

# Simple example ------------------------------------------------------------
edgelist <- cbind(c(1,1,3,6),c(4,3,200,1))
edgelist
#>      [,1] [,2]
#> [1,]    1    4
#> [2,]    1    3
#> [3,]    3  200
#> [4,]    6    1
recoded_edgelist <- recode(edgelist)
recoded_edgelist
#>      [,1] [,2]
#> [1,]    1    4
#> [2,]    1    3
#> [3,]    3    2
#> [4,]    5    1
#> attr(,"recode")
#>   code label
#> 1    1     1
#> 5    2   200
#> 2    3     3
#> 4    4     4
#> 3    5     6

# Retrieving the "recode" attribute
attr(recoded_edgelist, "recode")
#>   code label
#> 1    1     1
#> 5    2   200
#> 2    3     3
#> 4    4     4
#> 3    5     6