R - MATRICES- Creating 3 X 3 IDENTITY MATRIX

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MATRICES- Creating 3 X 3 IDENTITY MATRIX

I have encountered a problem in creating 3 x 3 identity matrix.

#create a matrix of 3 rows and 3 columns using the following code

values <- c(1,0,0,0,1,0,0,0,1)

matrixB <- as.matrix(values, nrow = 3, ncol = 3, byrow = TRUE)

print(matrixB)

But output i am getting is

print(matrixB)

[,1]

[1,] 1

[2,] 0

[3,] 0

[4,] 0

[5,] 1

[6,] 0

[7,] 0

[8,] 0

[9,] 1

Please tell me the solution..

Thanks.

Please review your second line of code. You should not use as.matrix function, rather you should use matrix function as given below:

matrixB <- matrix(values, nrow = 3, ncol = 3, byrow = TRUE)

02-04-20, 11:49 p.m. sudhakarst

Thank you for the response

02-04-20, 11:53 p.m. annieahuja89@gmail.com

We should not use dot matrix function. Wrong line of code=> matrixB <- as.matrix(values, nrow = 3, ncol = 3, byrow = TRUE)

Use matrixB<-matrix(values,nrow = 3,ncol = 3, byrow = TRUE)

Hint: as.matrix => used for creating matrix from dataset

21-04-20, 4:14 p.m. rdevi.lit@gmail.com

28-04-20, 2:53 p.m. angaiaruvi@gmail.com

codevalues <- c(1,0,0,0,1,0,0,0,1)

matrixB <- matrix(codevalues, nrow = 3, ncol = 3, byrow = TRUE)

print(matrixB)

28-04-20, 2:54 p.m. angaiaruvi@gmail.com