mutate output is visible. Fixes #11.

- The result of `mutate()` for a data table is always visible (#11).
tidyverse · Jul 2, 2016 · 2ceec18 · 2ceec18
1 parent 3bc66be
commit 2ceec18
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/R/tbl-dt.r b/R/tbl-dt.r
@@ -224,7 +224,8 @@ mutate_.data.table <- function(.data, ..., .dots) {
     .data <- dt_subset(.data, , j, dots[[i]]$env)
   }
 
-  .data
+  # Need to use this syntax to make the output visible (#11).
+  .data[]
 }
 
 # Arrange ----------------------------------------------------------------------