ProgramGuruTo create diagonal matrices in R, you can use the diag() function. This function can be used in various ways to create matrices with specified diagonal values, either from a single vector or by specifying dimensions and a value.
In this example,
vec containing the values c(1, 2, 3, 4).diag() function with vec as the argument. This function takes the values in vec and places them on the diagonal of a new matrix, with all off-diagonal elements set to zero.diagonal_matrix.diagonal_matrix to standard output to see the resulting diagonal matrix.vec <- c(1, 2, 3, 4)
diagonal_matrix <- diag(vec)
print(diagonal_matrix)[,1] [,2] [,3] [,4] [1,] 1 0 0 0 [2,] 0 2 0 0 [3,] 0 0 3 0 [4,] 0 0 0 4
In this example,
diag() function with a single integer argument 4. This integer specifies the dimensions of the resulting square identity matrix.diag() function creates a 4x4 identity matrix, with ones on the diagonal and zeros elsewhere.identity_matrix.identity_matrix to standard output to see the identity matrix.identity_matrix <- diag(4)
print(identity_matrix)[,1] [,2] [,3] [,4] [1,] 1 0 0 0 [2,] 0 1 0 0 [3,] 0 0 1 0 [4,] 0 0 0 1
In this example,
diag() function with two arguments: a scalar value 5 and an integer 3. The scalar value specifies the value to be placed on the diagonal, and the integer specifies the dimensions of the resulting square matrix.diag() function creates a 3x3 matrix with the value 5 on the diagonal and zeros elsewhere.custom_diagonal_matrix.custom_diagonal_matrix to standard output to see the resulting matrix.custom_diagonal_matrix <- diag(5, 3)
print(custom_diagonal_matrix)[,1] [,2] [,3] [1,] 5 0 0 [2,] 0 5 0 [3,] 0 0 5
In this tutorial, we learned How to Create Diagonal Matrices in R language with well detailed examples.