EpiModel (version 2.5.0)

check_degdist_bal: Check Degree Distribution for Balance in Target Statistics

Description

Checks for consistency in the implied network statistics of a two-group network in which the group size and group-specific degree distributions are specified.

Usage

check_degdist_bal(num.g1, num.g2, deg.dist.g1, deg.dist.g2)

Arguments

num.g1

Number of nodes in group 1.

num.g2

Number of nodes in group 2.

deg.dist.g1

Vector with fractional degree distribution for group 1.

deg.dist.g2

Vector with fractional degree distribution for group 2.

Details

This function outputs the number of nodes of degree 0 to g, where g is the length of a fractional degree distribution vector, given that vector and the size of the group. This utility is used to check for balance in implied degree given that fractional distribution within two-group network simulations, in which the degree-constrained counts must be equal across groups.

Examples

# An unbalanced distribution
check_degdist_bal(num.g1 = 500, num.g2 = 500,
                  deg.dist.g2 = c(0.40, 0.55, 0.03, 0.02),
                  deg.dist.g1 = c(0.48, 0.41, 0.08, 0.03))

# A balanced distribution
check_degdist_bal(num.g1 = 500, num.g2 = 500,
                  deg.dist.g1 = c(0.40, 0.55, 0.04, 0.01),
                  deg.dist.g2 = c(0.48, 0.41, 0.08, 0.03))