fix bug when save = FALSE & egde_prior = "Stochastic-Block" (#36)

* fix bug when save = FALSE & egde_prior = "Stochastic-Block"

* update: changed name of argument

Author: sekulovskin

R/bgm.R

@@ -544,7 +544,8 @@ bgm = function(x,
           thresholds = thresholds, allocations = out$allocations,
           arguments = arguments)
         class(output) = "bgms"
-        summary_Sbm = summarySBM(output)
+        summary_Sbm = summarySBM(output,
+                                 internal_call = TRUE)
 
         output$components = summary_Sbm$components
         output$allocations = summary_Sbm$allocations

R/posterior_utils.R

@@ -92,6 +92,9 @@ compute_p_k_given_t = function(
 #' number of clusters.
 #'
 #' @param bgm_object A fit object created by the bgm function.
+#' @param internal_call A logical value indicating whether the function is used
+#' within bgms for calculating the posterior probabilities of the number of
+#' clusters or by the user. This argument is always set to FALSE.
 #' @return Returns a list of two elements: \code{components} and \code{allocations},
 #' containing the posterior probabilities for the number of components (clusters)
 #' and the estimated cluster allocation of the nodes using Dahl's method.
@@ -107,14 +110,15 @@ compute_p_k_given_t = function(
 #' }
 #' @export
 summarySBM = function(
-    bgm_object) {
+    bgm_object,
+    internal_call = FALSE) {
 
   arguments = extract_arguments(bgm_object)
 
   if(arguments$edge_prior != "Stochastic-Block")
     stop('The bgm function must be run with edge_prior = "Stochastic-Block".')
 
-  if(arguments$save == FALSE)
+  if(arguments$save == FALSE && internal_call == FALSE)
     stop('The bgm function must be run with save = TRUE.')
 
   cluster_allocations = bgm_object$allocations