Extracting subset of the data frame in R

Question

Suppose I read a csv file into a data frame called \"d\". I wish to print the last 2 rows of this data frame. I tried the below but it is printing all the content starting f

Answer 1

This is working for me ...

d <- matrix(1:10,nrow=5)
d
     [,1] [,2]
[1,]    1    6
[2,]    2    7
[3,]    3    8
[4,]    4    9
[5,]    5   10

d <- as.data.frame(d)
d
  V1 V2
1  1  6
2  2  7
3  3  8
4  4  9
5  5 10

n <- nrow(d)
> n
[1] 5
d[n:(n-1),] ## Specifying the number of the row inside the brackets.
 V1 V2
5  5 10
4  4  9

d[n:n-1,] ## without brackets it will do 5:5 -1 = 4, so printing only the fourth row
  V1 V2
4  4  9