fix notes and warnings

NAMESPACE

@@ -42,6 +42,7 @@ importFrom(methods,is)
 importFrom(sem,sem)
 importFrom(stats,"tsp<-")
 importFrom(stats,.preformat.ts)
+importFrom(stats,AIC)
 importFrom(stats,logLik)
 importFrom(stats,na.omit)
 importFrom(stats,nlminb)

NEWS.md

@@ -1,6 +1,9 @@
 # dsem 1.4.0
 
 * Adding option for lower and upper bounds
+* Adding `stepwise_selection` for automated stepwise model selection
+* Adding `plot` option to use `ggraph` as alternative to previous `igraph`
+  option
 
 # dsem 1.3.0
 

R/dsem.R

@@ -24,7 +24,7 @@
 #'        settings, and see documentation for that function for details.
 #'
 #' @importFrom TMB compile dynlib MakeADFun sdreport summary.sdreport
-#' @importFrom stats sd .preformat.ts na.omit nlminb optimHess pnorm rnorm simulate time tsp<-
+#' @importFrom stats AIC sd .preformat.ts na.omit nlminb optimHess pnorm rnorm simulate time tsp<-
 #' @importFrom Matrix solve Cholesky
 #' @importFrom sem sem
 #' @importFrom igraph plot.igraph graph_from_data_frame with_sugiyama layout_

R/stepwise_selection.R

@@ -3,9 +3,15 @@
 #'
 #' @description Plot from a fitted \code{dsem} model
 #'
-#' @param model_options Output from \code{\link{dsem}}
-#' @param y Not used
-#' @param ... arguments passed to \code{\link[igraph]{plot.igraph}}
+#' @param model_options character-vector containing sem elements
+#'        that could be included or dropped depending upon their
+#'        parsimony
+#' @param model_shared character-vector containing sem elements
+#'        that must be included regardless of parsimony
+#' @param quiet whether to avoid displaying progress to terminal
+#' @param ... arguments passed to \code{\link{dsem}},
+#'        other than \code{sem} e.g., \code{tsdata}, \code{family}
+#'        etc.
 #'
 #' @details
 #' This function conducts stepwise (i.e., forwards and backwards) model