Improve ggplot() error message

hadley · hadley · commit dee842554d3c · 2016-01-23T11:17:26.000-06:00
Fixes #1436
diff --git a/R/plot.r b/R/plot.r
@@ -90,7 +90,7 @@ ggplot.default <- function(data = NULL, mapping = aes(), ...,
 ggplot.data.frame <- function(data, mapping = aes(), ...,
                               environment = parent.frame()) {
   if (!missing(mapping) && !inherits(mapping, "uneval")) {
-    stop("Mapping should be created with aes or aes_string")
+    stop("Mapping should be created with `aes() or `aes_()`.", call. = FALSE)
   }
 
   p <- structure(list(

Original file line number	Diff line number	Diff line change
`@@ -90,7 +90,7 @@ ggplot.default <- function(data = NULL, mapping = aes(), ...,`
`90`	`90`	`ggplot.data.frame <- function(data, mapping = aes(), ...,`
`91`	`91`	`environment = parent.frame()) {`
`92`	`92`	`if (!missing(mapping) && !inherits(mapping, "uneval")) {`
`93`		`- stop("Mapping should be created with aes or aes_string")`
	`93`	+ stop("Mapping should be created with `aes() or `aes_()`.", call. = FALSE)
`94`	`94`	`}`
`95`	`95`
`96`	`96`	`p <- structure(list(`