Arrange descending order and select top 3 in R

Question

Data:

d2

# A tibble: 5 x 2
  Dist      n
  <chr> <int>
1 003     194
2 011     180
3 013     157
4 017     279
5 026     208

From the above data "d2" I want to order the values in descending order for column 'n'. Also want top 2 values.

When I am using

arrange(desc(d2$n))

It is showing error:

Error in UseMethod("arrange_") : 
  no applicable method for 'arrange_' applied to an object of class "c('integer', 'numeric')"

Can anyone help me?

Look at the sintax in the proposed duplicate, it should be: `arrange(d2, desc(n))` — RLave, Feb 27 '19 at 08:59

score 3 · Accepted Answer · answered Feb 27 '19 at 08:43

since you did not provide your data, here is a solution for some random data:

d2 <- tibble(m = runif(5)*10, n = rnorm(5)) 

d2 %>%
  arrange(desc(n)) %>%
  slice(1:3)

Alternatively you can use the top_n function:

d2 %>% top_n(3, n)

The difference between these two methods is that top_n does not sort the result.

1 Answers1