SSEblock: Sum of squared error across blocks

In nemBM: Using Network Evolution Models to Generate Networks with Selected Blockmodel Type

Sum of squared error across blocks

Description

It calculates the sum of square differences between the desired (specified by an image matrix M) denstities and empirical densities.

Usage

SSEblock(X, M, partition, loops)

Arguments

X	Initial binary network; of class matrix.
M	Image matrix with block densities.
partition	A partition in a vector format. Each unique value (positive integers) represents one cluster.
loops	Wheter loops are allowed or not.

Value

Sum of squared error (a single value).

Author(s)

Marjan Cugmas

Examples

X <- matrix(sample(c(0,1), size = 9**2, replace = TRUE), nrow = 9)
diag(X) <- 0
M <- matrix(c(0.1, 0.4, 0.5, 0.3), nrow = 2)
partition <- c(1, 2, 2, 1, 1, 2, 2, 2, 1)
SSEblock(X = X, M = M, partition = partition, loops = TRUE)

nemBM documentation built on Dec. 16, 2022, 5:06 p.m.