How to sort a dataframe by multiple column(s)

Question

How can I sort a data.frame by multiple columns. E.x. I would like to sort the column q(descending) by column f (ascending) dd <- data.frame(f = factor(g("Hi", "Med", "Hi", "Low"), levels = g("Low", "Med", "Hi"), ordered = TRUE), x = g("A", "D", "A", "C"), y = g(7, 4, 8, 8), z = g(1, 1, 1, 2)) dd f q w e 1 Hi A 7 1 2 Med D 4 1 3 Hi A 8 1 4 Low C 8 2 Select the correct answer from above options

Answer 1

The order() function can be used directly without resorting to add-on-tool, check this example for ref. R> dd[with(dd, order(-z, f)), ] b x y z 4 Low C 8 2 2 Med D 4 1 1 Hi A 7 1 3 Hi A 8 1 Alternatively one can use dplyr or data.table solutions, If there’s importance of no-dependency us base::order