plotDomFlows: Dominant Flows Graph

In flows: Flow Selection and Analysis

Description

This function plots a dominant flows graph.

Usage

plotDomFlows(mat, legend.flows.pos = "topright",
  legend.flows.title = "Flows Intensity", legend.nodes.pos = "bottomright",
  legend.node.txt = c("Dominant", "Intermediary", "Dominated",
  "Size proportional\nto sum of inflows"), labels = FALSE)

Arguments

mat	A square matrix of dominant flows (see domflows).
legend.flows.pos	Position of the flows legend, one of "topleft", "top", "topright", "left", "right", "bottomleft", "bottom", "bottomright".
legend.flows.title	Title of the flows legend.
legend.nodes.pos	Position of the nodes legend, one of "topleft", "top", "topright", "left", "right", "bottomleft", "bottom", "bottomright".
legend.node.txt	Text of the nodes legend.
labels	A boolean, if TRUE, labels of dominant and intermediary nodes are plotted.

Note

As square matrices can easily be plot with plot.igraph or gplot functions from igraph and sna packages, we do not propose visualisation for other outputs.

See Also

domflows, plotMapDomFlows

Examples

# Import data
data(nav)
myflows <- prepflows(mat = nav, i = "i", j = "j", fij = "fij")

# Remove the matrix diagonal
diag(myflows) <- 0

# Select the dominant flows (incoming flows criterion)
flowSel1 <- domflows(mat = myflows, w = colSums(myflows), k = 1)
# Select the first flows
flowSel2 <- firstflows(mat = myflows, method = "nfirst", ties.method = "first",
                       k = 1)

# Combine selections
flowSel <- myflows * flowSel1 * flowSel2

# Plot dominant flows graph
plotDomFlows(mat = flowSel, legend.flows.title = "Nb. of commuters")

flows documentation built on May 2, 2019, 7:25 a.m.