Calculate the out-degree of each node based on external
transfer events ("extTrans") in the model's scheduled
events.
Value
An integer vector where each element corresponds to a node, containing the count of unique destination nodes receiving individuals from it.
Details
The out-degree is defined as the number of unique destination nodes that receive individuals from the source node at least once. This metric measures the connectivity of the network, indicating how many different neighbors a specific node directly sends individuals to.
See also
indegree for calculating the number of unique source
nodes that send individuals to a node. events_SIR
for example event data used in network analysis.
SimInf_events for details on the structure of
scheduled events.
Examples
## Create an 'SIR' model with example data.
model <- SIR(
u0 = u0_SIR(),
tspan = 1:1460,
events = events_SIR(),
beta = 0.16,
gamma = 0.077
)
## Calculate the out-degree for each node.
deg <- outdegree(model)
## View the out-degree for the first 6 nodes.
head(deg)
#> [1] 61 60 64 64 67 66
## Plot the distribution of out-degrees across all nodes.
## This shows how many destination nodes typically receive
## individuals from a given node.
hist(
deg,
main = "Distribution of Out-Degree (Unique Destinations)",
xlab = "Number of Unique Destination Nodes"
)
