prepare_mat: Flow matrix preparation

In rCarto/flows: Selections on Flow Matrices, Statistics on Selected Flows, Map and Graph Visualisations

Flow matrix preparation

Description

From a long format matrix to a a wide format matrix.

Usage

prepare_mat(x, i, j, fij)

Arguments

x	A data.frame of flows between origins and destinations: long format matrix (origins, destinations, flows intensity).
i	A character giving the origin field name in mat.
j	A character giving the destination field name in mat.
fij	A character giving the flow field name in mat.

Value

A square matrix of flows. Diagonal can be filled or empty depending on data used.

Examples

# Import data
nav <- read.csv(system.file("csv/nav.csv", package = "flows"))
# Prepare data
myflows <- prepare_mat(x = nav, i = "i", j = "j", fij = "fij")
myflows[1:5, 1:5]

rCarto/flows documentation built on May 10, 2024, 11:38 a.m.