Remove extra `the` (#309)

transform.Rmd

@@ -249,7 +249,7 @@ arrange(df, desc(x))
 
 It's not uncommon to get datasets with hundreds or even thousands of variables. In this case, the first challenge is often narrowing in on the variables you're actually interested in. `select()` allows you to rapidly zoom in on a useful subset using operations based on the names of the variables.
 
-`select()` is not terribly useful with the flights the data because we only have 19 variables, but you can still get the general idea:
+`select()` is not terribly useful with the flights data because we only have 19 variables, but you can still get the general idea:
 
 ```{r}
 # Select columns by name