R Under development (unstable) (2024-02-05 r85863 ucrt) -- "Unsuffered Consequences"
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> library(pcalg)
> 
> val <- rep(FALSE, 9)
> ## Test 1
> gm <- rbind(c(0,1),
+             c(1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:2]
> res <- pdag2allDags(gm, verbose = FALSE)
> ## plotAllDags(res)
> ## for (i in 1:2) {cat(paste("c(",paste(res$dags[i,], collapse = ","),"),",sep=""),"\n")}
> res.truth <- rbind(c(0,1,0,0), 
+                    c(0,0,1,0))
> val[1] <- identical(res.truth, res$dags)
> 
> ## Test 2
> gm <- rbind(c(0,0),
+             c(0,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:2]
> res <- pdag2allDags(gm, verbose = FALSE)
> res.truth <- rbind(c(0,0,0,0))
> val[2] <- identical(res.truth, res$dags)
> 
> ## Test 3, non-collider
> gm <- rbind(c(0,1,0),
+             c(1,0,1),
+             c(0,1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> res.truth <- rbind(c(0,1,0,0,0,1,0,0,0), 
+                    c(0,1,0,0,0,0,0,1,0), 
+                    c(0,0,0,1,0,0,0,1,0))
> val[3] <- identical(res.truth, res$dags)
> ## for (i in 1:3) {cat(paste("c(",paste(res$dags[i,], collapse = ","),"),",sep=""),"\n")}
> ## plotAllDags(res)
> 
> ## Test 4, collider
> gm <- rbind(c(0,0,0),
+             c(1,0,1),
+             c(0,0,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> res.truth <- rbind(c(0,0,0,1,0,1,0,0,0))
> val[4] <- identical(res.truth, res$dags)
> ## plotAllDags(res)
> 
> ## Test 5, trick question
> gm <- rbind(c(0,0,0),
+             c(1,0,1),
+             c(0,1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> res.truth <- rbind(c(0,0,0,1,0,0,0,1,0))
> val[5] <- identical(res.truth, res$dags)
> ## plotAllDags(res)
> 
> ## Test 6,complete
> gm <- rbind(c(0,1,1),
+             c(1,0,1),
+             c(1,1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> ## for (i in 1:6) {cat(paste("c(",paste(res$dags[i,], collapse = ","),"),",sep=""),"\n")}
> res.truth <- rbind(c(0,1,1,0,0,1,0,0,0), 
+                    c(0,1,1,0,0,0,0,1,0), 
+                    c(0,0,1,1,0,1,0,0,0), 
+                    c(0,0,0,1,0,1,1,0,0), 
+                    c(0,1,0,0,0,0,1,1,0), 
+                    c(0,0,0,1,0,0,1,1,0))
> val[6] <- identical(res.truth, res$dags)
> ## plotAllDags(res)
> 
> ## Test 7, 4 nodes: being really mean
> ## No DAG possible
> gm <- rbind(c(0,1,1,0),
+             c(1,0,0,1),
+             c(1,0,0,1),
+             c(0,1,1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> val[7] <- is.null(res$dags)
> ## plotAllDags(res)
> 
> ## Test 8, 4 nodes
> gm <- rbind(c(0,1,1,0),
+             c(1,0,0,0),
+             c(1,0,0,0),
+             c(0,1,1,0))
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> res.truth <- rbind(c(0,0,1,0,1,0,0,0,0,0,0,0,0,1,1,0),
+                    c(0,0,0,0,1,0,0,0,1,0,0,0,0,1,1,0),
+                    c(0,1,0,0,0,0,0,0,1,0,0,0,0,1,1,0))
> val[8] <- identical(res.truth, res$dags)
> ## plotAllDags(res)
> 
> ## Test 9, 5 nodes; D -> E must always be there
> gm <- rbind(c(0,1,1,0,0),
+             c(1,0,0,0,0),
+             c(1,0,0,0,0),
+             c(0,1,1,0,1),
+             c(0,0,0,1,0))
> 
> colnames(gm) <- rownames(gm) <- LETTERS[1:ncol(gm)]
> res <- pdag2allDags(gm, verbose = FALSE)
> 
> res.truth <- rbind(c(0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,1,0),
+                    c(0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,1,1,0,0,0,0,0,1,0),
+                    c(0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,0,0,0,0,0,1,0))
> val[9] <- identical(res.truth, res$dags)
> 
> if (!all(val)) stop("Error in testing pdag2allDags!\n")
> 
> proc.time()
   user  system elapsed 
   0.79    0.17    0.95