Merge pull request #180 from sfcheung/devel

Update to 0.2.3.7

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: manymome
 Title: Mediation, Moderation and Moderated-Mediation After Model Fitting
-Version: 0.2.3.5
+Version: 0.2.3.7
 Authors@R:
     c(person(given = "Shu Fai",
            family = "Cheung",

NEWS.md

@@ -1,4 +1,4 @@
-# manymome 0.2.3.5
+# manymome 0.2.3.7
 
 ## New Features
 
@@ -7,7 +7,7 @@
   using `facet_grid()` to plot the
   conditional effects when there are
   two or more moderators in a path.
-  (0.2.3.3, 0.2.3.5)
+  (0.2.3.3, 0.2.3.5, 0.2.3.6)
 
 ## Improvement
 
@@ -28,6 +28,13 @@
   such as when computing effects in a
   moderation-only model. (0.2.3.4)
 
+## Documentation
+
+- Corrected `README` to remark that
+  dichotomous `x`-variables are supported
+  by most functions if coded as a
+  numeric dummy variable. (0.2.3.7)
+
 ## Bug Fixes
 
 - Fixed an issue related to

R/plotmod.R

@@ -612,11 +612,17 @@ plot.cond_indirect_effects <- function(
             if (!all(facet_grid_cols %in% w_names)) {
                 stop("'facet_grid_cols' must be among the moderators.")
               }
+            if (length(facet_grid_cols) != 1) {
+                stop("Having more than one column in facet_grid is not yet supported.")
+              }
           }
         if (!is.null(facet_grid_rows)) {
             if (!all(facet_grid_rows %in% w_names)) {
                 stop("'facet_grid_rows' must be among the moderators.")
               }
+            if (length(facet_grid_rows) != 1) {
+                stop("Having more than one row in facet_grid is not yet supported.")
+              }
           }
         w_names_in <- setdiff(w_names, union(facet_grid_cols, facet_grid_rows))
         if (length(w_names_in) == 0) {

README.md

@@ -9,7 +9,7 @@
 [![R-CMD-check](https://github.com/sfcheung/manymome/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/sfcheung/manymome/actions/workflows/R-CMD-check.yaml)
 <!-- badges: end -->
 
-(Version 0.2.3.5, updated on 2024-09-28, [release history](https://sfcheung.github.io/manymome/news/index.html))
+(Version 0.2.3.7, updated on 2024-09-28, [release history](https://sfcheung.github.io/manymome/news/index.html))
 
 # manymome  <img src="man/figures/logo.png" align="right" height="150" />
 
@@ -129,7 +129,15 @@ by multiple regression. The package was introduced in:
 Despite the aforementioned advantages, the current version of
 `manymome` has the following limitations:
 
-- Does not (officially) support categorical predictors.
+- Does not (officially) support
+  categorical `x`-variables with more
+  than two categories. Note that most
+  functions will work with dichotomous
+  `x`-variables, and the effect of `x`
+  is simply the difference in predicted
+  `y` between the two levels if coded as
+  0 and 1 (or any coding with a
+  difference of 1, e.g., 1 and 2).
 
 - Does not support multilevel models (although `lavaan` does).
 

tests/testthat/test_plot_cond_indirect_effects_2ws.R

@@ -51,3 +51,8 @@ test_that("Three moderators", {
   expect_no_error(plot(out_1, graph_type = "tumble", facet_grid_rows = "gp", facet_grid_cols = "w4"))
   expect_no_error(plot(out_1, graph_type = "tumble", facet_grid_rows = "w4", facet_grid_cols = "city"))
 })
+
+test_that("Three moderators", {
+  expect_error(plot(out_1, facet_grid_cols = c("gp", "w4")))
+  expect_error(plot(out_1, facet_grid_rows = c("gp", "w4")))
+})