Construct the DAG from a given collection of sets. {cherry} | R Documentation |
Constructs a DAG from a given collection of sets. Filters duplicates, and checks whether the eventual DAG structure has twoway logical relationships.
construct (sets)
sets |
A list of sets/hypotheses for which you want to construct a DAG according to the underlying subset relations. |
The function construct
returns an object of class DAGstructure
.
Rosa Meijer: r.j.meijer@lumc.nl
#Generate data, where the response Y is associated with two (out of 4) covariates
set.seed(1)
n=100
p=4
X <- matrix(rnorm(n*p),n,p)
beta <- c(0,0.5,0.5,0)
Y <- X %*% beta + rnorm(n)
# Let us assume we have the following sets that we want to test:
sets <- list(c(1,2,3,4), c(1,2), c(2,3,4), c(2,3), 1, 2, 3, 4)
names(sets) <- c(1234, 12, 234, 23, 1, 2, 3, 4)
# Start by making the corresponding graph structure
struct <- construct(sets)
# Check whether the DAG has toway logical relations:
istwoway(struct)