R Under development (unstable) (2024-09-06 r87103 ucrt) -- "Unsuffered Consequences"
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> library(pcalg)
> 
> set.seed(42)
> acyc <- edgeDistr <- wgtDistr <- 0
> 
> p <- 10
> s <- 0.2
> lB <- 0
> uB <- 2
> wgts <- NULL
> nEdg <- 0
> nreps <- 10
> acyc <- rep(FALSE,nreps)
> 
> for (i in 1:nreps) {
+   myDAG <- randomDAG(p,s,lB,uB)
+   amat <- as(myDAG,"matrix")
+   acyc[i] <- ggm::isAcyclic(amat)
+   wgts <- c(wgts,amat[amat!=0])
+   nEdg <- nEdg + graph::numEdges(myDAG)
+ }
> 
> ## Check number of edges
> nPossibleEdg <- nreps*p*(p-1)/2
> edge.test <- binom.test(nEdg,nPossibleEdg,p=s,alternative="two.sided")
> if (edge.test$p.value < 0.05) {
+   stop("Test of randomDAG: Number of edges is not as theory predicts!")
+ }
> 
> ## Check distribution of wgts
> if (min(wgts) < lB || max(wgts) > uB) {
+   stop("Test of randomDAG: Weights are not within specified ranges!")
+ }
> 
> ## Check whether graphs are acyclic
> if (!all(acyc))
+   stop("Test of randomDAG: Graph is not acyclic!")
> 
> ## Check special case
> if (graph::numEdges(randomDAG(n=2,prob=1)) != 1) {
+     stop("Test of randomDAG: Error with special case n=2, prob=1!")
+ }
> 
> cat('Time elapsed: ', proc.time(),"\n")
Time elapsed:  0.81 0.18 1 NA NA 
> 
> proc.time()
   user  system elapsed 
   0.81    0.18    1.00