Extract a classic origin-destination migration flow matrix from a more detailed dis-aggregation of flows stored in an (array). Primarily intended to work with output from ffs_demo.

sum_od(x = NULL, zero_diag = TRUE, add_margins = TRUE)



Array of origin-destination matrices, where the first and second dimensions correspond to origin and destination respectively. Higher dimension(s) refer to additional migrant characteristic(s).


Logical to indicate if to set diagonal terms to zero. Default TRUE.


Logical to indicate if to add row and column for immigration and emigration totals. Default TRUE


Matrix from summing over the first and second dimension. Set diagonals to zero.

Returns a matrix object of origin-destination flows

See also