Merge branch 'master' of github.com:hadley/r4ds

variation.Rmd

@@ -599,7 +599,7 @@ Finally, if your work is meaningful at all, it will have an audience, which mean
 knitr::include_graphics("images/EDA-data-science-4.png")
 ```
 
-This model od data science forms a roadmap for the rest of the book. 
+This model of data science forms a roadmap for the rest of the book. 
 
 * Part 1 of the book covered the central tasks of the model above, Exploratory Data Analysis. 
 

visualize.Rmd

@@ -358,7 +358,7 @@ ggplot(data = diamonds) +
   geom_bar(mapping = aes(x = cut, fill = cut))
 ```
 
-If you map the fill aesthetic to a third variable, like `clarity`, you get a stacked bar chart. Each colored rectangle represents a combination of `cut` and `clarity`.
+If you map the fill aesthetic to another variable, like `clarity`, you get a stacked bar chart. Each colored rectangle represents a combination of `cut` and `clarity`.
 
 ```{r}
 ggplot(data = diamonds) +