How to print matrix without line numbers in R?

To print matrix without line numbers in R, we can follow the below steps −

• First of all, create a matrix.

• Then, print the matrix with as.data.frame and row.names argument set to FALSE.

Example1

Create the matrix

Let’s create a matrix as shown below −

 Live Demo

M1<-matrix(rpois(60,5),ncol=3) M1

On executing, the above script generates the below output(this output will vary on your system due to randomization) −

Output

     [,1] [,2] [,3] [1,]  9    4    2 [2,]  3    4    7 [3,]  3    3    4 [4,]  3    9    8 [5,]  4    3    7 [6,]  6    8    5 [7,]  9    5    3 [8,]  2    1    6 [9,]  1    8    7 [10,] 8    3    5 [11,] 3    6    5 [12,] 8    4    5 [13,] 6    6    4 [14,] 2    3    2 [15,] 3    5    3 [16,] 5    11   7 [17,] 4    4    7 [18,] 2    4    4 [19,] 4    7    4 [20,] 6    5    7

Removing line numbers from the matrix

Using as.data.frame function and print function to print the matrix M1 without line numbers −

 Live Demo

M1<-matrix(rpois(60,5),ncol=3) print(as.data.frame(M1),row.names=F)

Output

V1  V2 V3 9   4  2 3   4  7 3   3  4 3   9  8 4   3  7 6   8  5 9   5  3 2   1  6 1   8  7 8   3  5 3   6  5 8   4  5 6   6  4 2   3  2 3   5  3 5   11 7 4   4  7 2   4  4 4   7  4 6   5  7

Example 2

Create the matrix

Let’s create a matrix as shown below −

 Live Demo

M2<-matrix(round(rnorm(80),1),ncol=4) M2

On executing, the above script generates the below output(this output will vary on your system due to randomization) −

Output

   [,1] [,2] [,3] [,4] [1,] -0.7 0.9 0.3 -0.6 [2,] -1.0 -0.8 0.6 -1.3 [3,] -1.9 -1.2 -1.9 -0.8 [4,] -1.8 0.7 -1.7 -1.0 [5,] -2.1 -0.3 1.6 0.8 [6,] -1.1 -0.9 -1.7 -1.9 [7,] -0.1 1.5 -1.2 0.2 [8,] 0.5 -0.9 0.0 -0.3 [9,] 0.3 2.1 -0.2 1.0 [10,] 1.3 0.2 -0.6 0.5 [11,] -0.5 1.2 -0.8 -0.9 [12,] -1.7 -1.0 0.6 -0.2 [13,] 1.0 0.3 0.8 -0.1 [14,] -0.1 1.9 -2.3 -0.3 [15,] -0.5 -1.3 0.1 -0.7 [16,] 1.3 1.0 0.8 -0.5 [17,] 1.2 -0.4 2.4 0.3 [18,] 0.9 -1.1 0.4 -1.5 [19,] 0.6 -0.7 -2.7 1.1 [20,] -1.4 -0.5 0.5 -0.4

Removing line numbers from the matrix

Using as.data.frame function and print function to print the matrix M1 without line numbers −

 Live Demo

M2<-matrix(rpois(80,1),ncol=4) print(as.data.frame(M1),row.names=F)

Output

 V1   V2  V3  V4 -0.7 0.9 0.3 -0.6 -1.0 -0.8 0.6 -1.3 -1.9 -1.2 -1.9 -0.8 -1.8 0.7 -1.7 -1.0 -2.1 -0.3 1.6 0.8 -1.1 -0.9 -1.7 -1.9 -0.1 1.5 -1.2 0.2 0.5 -0.9 0.0 -0.3 0.3 2.1 -0.2 1.0 1.3 0.2 -0.6 0.5 -0.5 1.2 -0.8 -0.9 -1.7 -1.0 0.6 -0.2 1.0 0.3 0.8 -0.1 -0.1 1.9 -2.3 -0.3 -0.5 -1.3 0.1 -0.7 1.3 1.0 0.8 -0.5 1.2 -0.4 2.4 0.3 0.9 -1.1 0.4 -1.5 0.6 -0.7 -2.7 1.1 -1.4 -0.5 0.5 -0.4