Fix warning when using weight with stat_bin (#1921)

tidyverse · Jan 24, 2017 · 721c2f1 · 721c2f1
1 parent 12fb499
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diff --git a/NEWS.md b/NEWS.md
@@ -4,6 +4,9 @@
 
 * Fix usage of `structure(NULL)` for R-devel compatibility (#1968).
 
+* Fix warning when using the `weight` aesthetic with `stat_bin()` (through 
+  `geom_histogram()` in particular) (@jiho, #1921).
+
 # ggplot2 2.2.0
 
 ## Major new features

diff --git a/R/stat-bin.r b/R/stat-bin.r
@@ -139,7 +139,7 @@ StatBin <- ggproto("StatBin", Stat,
     bin_vector(data$x, bins, weight = data$weight, pad = pad)
   },
 
-  default_aes = aes(y = ..count..),
+  default_aes = aes(y = ..count.., weight = 1),
   required_aes = c("x")
 )