Mobile Edges.

Convert a data frame with one number (normally a year) into an edge list form with those whose numbers (years) have a difference lower or equal to a quantity.

mobileEdges(data, name = 1, number = 2, difference=0)

Arguments

data	a data frame with a name and a number (year).
name	Column with the names (default= first column).
number	Column with the number (year) to compare (default= second column.
difference	Minimum difference between numbers of every two pair of names to create the edge or link (default=15).

Value

A data frame in which the two first columns are source and target. The rest of the columns are sim.=(1+threshold-real difference) and dist.=(difference between numbers)

Author

Modesto Escobar, Department of Sociology and Communication, University of Salamanca. See https://sociocav.usal.es/blog/modesto-escobar/

Examples

# From a random incidence matrix I(25X4)
data("sociologists")
mobileEdges(sociologists)
#>                  Source           Target sim. dist.
#> 1      Friedrich Engels   Hebert Spencer    1     0
#> 2        Emile Durkheim    Gaetano Mosca    1     0
#> 3        Emile Durkheim     Georg Simmel    1     0
#> 4         Gaetano Mosca     Georg Simmel    1     0
#> 5        George H. Mead   Werner Sombart    1     0
#> 6        Charles Cooley        Max Weber    1     0
#> 7 Arnold Joseph Toynbee Pitirim  Sorokin    1     0