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migest (version 2.0.2)

sum_od: Extract a classic origin-destination migration flow matrix.

Description

Extract a classic origin-destination migration flow matrix from a more detailed dis-aggregation of flows stored in an (array) object.

Usage

sum_od(y)

Value

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

Returns a matrix object of origin-destination flows

Arguments

y

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).