getGraph {cglasso}

Retrieve Graphs from a ‘cglasso2igraph’ Object

Description

‘getGraph’ retrieves graphs from an R object of class ‘cglasso2igraph’.

Usage

getGraph(x, type = c("Gyy", "Gxy", "both"))

Arguments

x

an object of class ‘cglasso2igraph’ (see also to_graph).

type

a description of the required graph. Default is ‘Gyy’.

Value

getGraph retrieves an R object of class ‘igraph’ representing the graph required by the argument type.

Author(s)

Luigi Augugliaro ([e-mail])

See Also

to_graph, is.cglasso2igraph and plot.cglasso2igraph.

Examples

set.seed(123)
# Y ~ N(0, Sigma) and probability of left/right censored values equal to 0.05
n <- 100L
p <- 3L
rho <- 0.3
Sigma <- outer(1L:p, 1L:p, function(i, j) rho^abs(i - j))
Z <- rcggm(n = n, Sigma = Sigma, probl = 0.05, probr = 0.05)
out <- cglasso(. ~ ., data = Z)
out.graph <- to_graph(out)
getGraph(out.graph)


# Y ~ N(b0 + XB, Sigma)  and probability of left/right censored values equal to 0.05
n <- 100L
p <- 3L
q <- 2L
b0 <- runif(p)
B <- matrix(runif(q * p), nrow = q, ncol = p)
X <- matrix(rnorm(n * q), nrow = n, ncol = q)
rho <- 0.3
Sigma <- outer(1L:p, 1L:p, function(i, j) rho^abs(i - j))
Z <- rcggm(n = n, b0 = b0, X = X, B = B, Sigma = Sigma, probl = 0.05, probr = 0.05)
out <- cglasso(. ~ ., data = Z)
out.graph <- to_graph(out, lambda.id = 3, rho.id = 3, weighted = TRUE)
getGraph(out.graph, type = "Gyy")
getGraph(out.graph, type = "Gxy")
getGraph(out.graph, type = "both")