Difference in Time of Adoption (TOA) between individuals
Creates n * n matrix indicating the difference in times of adoption between each pair of nodes
Either an integer vector of size n containing time of adoption of the innovation,
Integer scalar. Sets the lower bound of the time window (e.g. 1955).
Character vector of size n. Labels (ids) of the vertices.
Each cell ij of the resulting matrix is calculated as toa(j) - toa(i), so that whenever its positive it means that the j-th individual (alter) adopted the innovation sonner.
An n * n symmetric matrix indicating the difference in times of adoption between each pair of nodes.
George G. Vega Yon, Stephanie R. Dyal, Timothy B. Hayes & Thomas W. Valente
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