Sorting of vectors can be done using the sort() function. By default, it sorts in ascending order. To sort in descending order we can pass decreasing=TURE.
Note that sort is not in-place. This means that the original vector is not effected (sorted). Only a sorted version of it is returned.
x <- c( 1, 4, 3, 9, 6, 7) sort(x) //sort in ascending order sort(x, decreasing=TRUE)//sort in descending order
out put:
$Rscript main.r [1] 1 3 4 6 7 9 [1] 9 7 6 4 3 1
Or
Sometimes we would want the index of the sorted vector instead of the values. In such case we can use the function order().
x <- c( 1, 4, 3, 9, 6, 7) order(x)
output:
$Rscript main.r
[1] 1 3 2 5 6 4
(Or) x <- c( 1, 4, 3, 9, 6, 7) order(x) x[order(x)]
Output:
$Rscript main.r [1] 1 3 2 5 6 4 [1] 1 3 4 6 7 9
