Use aes_q in borders to eliminate check warning

Author: hadley

R/fortify-map.r

@@ -88,11 +88,11 @@ map_data <- function(map, region = ".", exact = FALSE, ...) {
 #' ggplot(capitals, aes(long, lat)) +
 #'   borders("state") +
 #'   geom_point(aes(size = pop)) +
-#'   scale_area()
+#'   scale_size_area()
 #'
 #' }
 borders <- function(database = "world", regions = ".", fill = NA, colour = "grey50", ...) {
   df <- map_data(database, regions)
-  geom_polygon(aes(long, lat, group = group), data = df,
+  geom_polygon(aes_q(quote(long), quote(lat), group = quote(group)), data = df,
     fill = fill, colour = colour, ...)
 }

man/borders.Rd

@@ -36,7 +36,7 @@ capitals <- subset(us.cities, capital == 2)
 ggplot(capitals, aes(long, lat)) +
   borders("state") +
   geom_point(aes(size = pop)) +
-  scale_area()
+  scale_size_area()
 
 }
 }