migration.field.diagram: Joint plot for in and out-migration fields
Description
This migration field diagram makes easy to visualize both
direction of migration. E.g. points above the diagonal
"are outward redistributors, while those below that line
are inward redistributors."
Usage
migration.field.diagram(m, method = c("gini", "acv"),
title = "Migration field diagram",
xlab = "Out-migration", ylab = "In-migration")
Case study and
use case: Andrei Rogers and Stuart Sweeney (1998)
Measuring the Spatial Focus of Migration Patterns.
The Professional Geographer50, 232--242