diff --git a/DESCRIPTION b/DESCRIPTION
index 84247b5..a346382 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,12 +1,12 @@
 Package: cregg
 Type: Package
 Title: Simple Conjoint Tidying, Analysis, and Visualization
-Version: 0.2.4
-Date: 2018-07-23
+Version: 0.3.0
+Date: 2018-07-27
 Authors@R: c(person("Thomas J.", "Leeper", role = c("aut", "cre"),
                     email = "thosjleeper@gmail.com",
                     comment = c(ORCID = "0000-0003-4097-6326")))
-Description: Simple tidying, analysis, and visualization of conjoint (factorial) experiments, including estimation and visualization of average marginal component effects ('AMCEs') and marginal means ('MMs') for weighted and un-weighted survey data, along with useful reference category diagnostics and statistical tests. Estimation of AMCEs is based upon methods described by Hainmueller, Hopkins, and Yamamoto (2014) <doi:10.1093/pan/mpt024>.
+Description: Simple tidying, analysis, and visualization of conjoint (factorial) experiments, including estimation and visualization of average marginal component effects ('AMCEs') and marginal means ('MMs') for weighted and un-weighted survey data, along with useful reference category diagnostics and statistical tests. Estimation of 'AMCEs' is based upon methods described by Hainmueller, Hopkins, and Yamamoto (2014) <doi:10.1093/pan/mpt024>.
 License: MIT + file LICENSE
 URL: https://github.com/leeper/cregg
 BugReports: https://github.com/leeper/cregg/issues
@@ -16,7 +16,7 @@ Imports:
     sandwich (>= 2.4-0),
     survey (>= 3.33),
     lmtest,
-    ggplot2,
+    ggplot2 (>= 2.0),
     ggstance,
     scales
 Suggests:
diff --git a/R/amce.R b/R/amce.R
index a2f3bca..185b897 100644
--- a/R/amce.R
+++ b/R/amce.R
@@ -28,7 +28,7 @@
 #' data("immigration")
 #' # estimating AMCEs with constraints
 #' amce(immigration, ChosenImmigrant ~ Gender + ReasonForApplication * CountryOfOrigin,
-#'      id = ~CaseID, constraints = list(~ReasonForApplication + CountryOfOrigin))
+#'      id = ~CaseID)
 #' 
 #' # balance testing example
 #' plot(amce(immigration[!is.na(immigration$ethnocentrism),],
diff --git a/R/cj_tidy.R b/R/cj_tidy.R
index 73cbfa6..c940bcc 100644
--- a/R/cj_tidy.R
+++ b/R/cj_tidy.R
@@ -72,7 +72,10 @@
 #' 
 #' 
 #' # perform reshape
-#' str(long <- cj_tidy(wide_conjoint, profile_variables = list1, task_variables = list2, id = ~ respondent))
+#' str(long <- cj_tidy(wide_conjoint,
+#'                     profile_variables = list1,
+#'                     task_variables = list2,
+#'                     id = ~ respondent))
 #' stopifnot(nrow(long) == nrow(wide_conjoint)*4*2)
 #' 
 #' # recode outcome so it is coded sensibly
diff --git a/R/plot_cj_amce.R b/R/plot_cj_amce.R
index 2548f2f..07fabd8 100644
--- a/R/plot_cj_amce.R
+++ b/R/plot_cj_amce.R
@@ -55,9 +55,6 @@
 #' d2_1$reasons <- "1,2,3"
 #' d2_2$reasons <- "1,2"
 #' plot(rbind(d2_1, d2_2), group = "reasons")
-#' 
-#' # plot AMCEs
-#' plot(d2)
 #' }
 #' @seealso \code{\link{amce}}, \code{\link{mm}}
 #' @import ggplot2
diff --git a/man/amce.Rd b/man/amce.Rd
index 73c4bc2..176635c 100644
--- a/man/amce.Rd
+++ b/man/amce.Rd
@@ -55,7 +55,7 @@ amce(taxes, chose_plan ~ taxrate1 + taxrate2 + taxrate3 +
 data("immigration")
 # estimating AMCEs with constraints
 amce(immigration, ChosenImmigrant ~ Gender + ReasonForApplication * CountryOfOrigin,
-     id = ~CaseID, constraints = list(~ReasonForApplication + CountryOfOrigin))
+     id = ~CaseID)
 
 # balance testing example
 plot(amce(immigration[!is.na(immigration$ethnocentrism),],
diff --git a/man/cj_tidy.Rd b/man/cj_tidy.Rd
index 9f61c6c..79d15fc 100644
--- a/man/cj_tidy.Rd
+++ b/man/cj_tidy.Rd
@@ -88,7 +88,10 @@ list2 <- list(choice = ~ choice_a + choice_b + choice_c + choice_d,
 
 
 # perform reshape
-str(long <- cj_tidy(wide_conjoint, profile_variables = list1, task_variables = list2, id = ~ respondent))
+str(long <- cj_tidy(wide_conjoint,
+                    profile_variables = list1,
+                    task_variables = list2,
+                    id = ~ respondent))
 stopifnot(nrow(long) == nrow(wide_conjoint)*4*2)
 
 # recode outcome so it is coded sensibly
diff --git a/man/plot.Rd b/man/plot.Rd
index 6893332..d01537e 100644
--- a/man/plot.Rd
+++ b/man/plot.Rd
@@ -106,9 +106,6 @@ d2_2 <- cj(reasons12, ChosenImmigrant ~ CountryOfOrigin, id = ~ CaseID,
 d2_1$reasons <- "1,2,3"
 d2_2$reasons <- "1,2"
 plot(rbind(d2_1, d2_2), group = "reasons")
-
-# plot AMCEs
-plot(d2)
 }
 }
 \seealso{