Reshaping Data Frames With tidyr

Anisa Dhana shows off some of the data reshaping functionality available in the tidyr package:

As it is shown above, the variable agegp has 6 groups (i.e., 25-34, 35-44) which has different alcohol intake and smoking use combinations. I think it would be interesting to transform this dataset from long to wide and to create a column for each age group and show the respective cases. Let see how the dataset will look like.

dt %>% 
  spread(agegp, ncases) %>% 
  slice(1:5)

Click through for a few additional transformations.