How to do Scalar Division on a Matrix in R


How to do Scalar Division on a Matrix in R ?

Answer

To perform scalar division on a matrix in R, you can use the division operator / with a matrix and a scalar value.



✐ Examples

1 Scalar Division of a 2x2 Matrix by 2

In this example,

  1. We first create a 2x2 matrix named matrix1 using the matrix() function. We provide a vector of values c(4, 8, 6, 10) and specify the number of rows as 2.
  2. Next, we define a scalar value scalar and set it to 2. This is the value by which each element of the matrix will be divided.
  3. We then perform the scalar division operation by using the division operator / to divide matrix1 by scalar. The result is stored in a new variable called resultMatrix1.
  4. Finally, we use the print() function to display the resulting matrix resultMatrix1.

R Program

matrix1 <- matrix(c(4, 8, 6, 10), nrow = 2)
scalar <- 2
resultMatrix1 <- matrix1 / scalar
print(resultMatrix1)

Output

[,1] [,2]
[1,]  2   3
[2,]  4   5

2 Scalar Division of a 3x3 Matrix by 5

In this example,

  1. We first create a 3x3 matrix named matrix2 using the matrix() function. We provide a vector of values c(10, 20, 30, 40, 50, 60, 70, 80, 90) and specify the number of rows as 3.
  2. Next, we define a scalar value scalar and set it to 5. This is the value by which each element of the matrix will be divided.
  3. We then perform the scalar division operation by using the division operator / to divide matrix2 by scalar. The result is stored in a new variable called resultMatrix2.
  4. Finally, we use the print() function to display the resulting matrix resultMatrix2.

R Program

matrix2 <- matrix(c(10, 20, 30, 40, 50, 60, 70, 80, 90), nrow = 3)
scalar <- 5
resultMatrix2 <- matrix2 / scalar
print(resultMatrix2)

Output

[,1] [,2] [,3]
[1,]  2   8  14
[2,]  4  10  16
[3,]  6  12  18

Summary

In this tutorial, we learned How to do Scalar Division on a Matrix in R language with well detailed examples.




More R Matrices Tutorials

  1. How to Create a Matrix in R ?
  2. How to Combine Matrices by Columns in R ?
  3. How to Combine Matrices by Rows in R ?
  4. How to Create Diagonal Matrices in R ?
  5. How to Access Matrix Elements using Indexing and Slicing in R ?
  6. How to get Matrix Size in R ?
  7. How to get Number of Rows in Matrix in R ?
  8. How to get Number of Columns in Matrix in R ?
  9. How to do Matrix Addition in R ?
  10. How to do Matrix Subtraction in R ?
  11. How to do Matrix Multiplication in R ?
  12. How to do Scalar Multiplication on a Matrix in R ?
  13. How to do Scalar Division on a Matrix in R ?
  14. How to do Element-Wise Operations in a Matrix in R ?
  15. How to Assign Row and Column Names in a Matrix in R ?
  16. How to get Row Names in a Matrix in R ?
  17. How to get Column Names in a Matrix in R ?
  18. How to find Transpose of a Matrix in R ?
  19. How to Extract the Diagonal of a Matrix in R ?
  20. How to find Determinant of a Matrix in R ?
  21. How to find Inverse of a Matrix in R ?
  22. How to find Rank of a Matrix in R ?
  23. How to Find Eigenvalues and Eigenvectors of a Matrix in R ?
  24. How to Perform Singular Value Decomposition (SVD) in R ?
  25. How to Perform QR Decomposition in R ?
  26. How to Perform Cholesky Decomposition in R ?
  27. How to Reshape Matrices in R ?
  28. How to Convert Data Frames to Matrices in R ?
  29. How to Create Identity Matrix in R ?
  30. How to Create Zero Matrix in R ?
  31. How to Create Ones Matrix in R ?
  32. How to Generate Random Matrices in R ?
  33. How to Calculate Row and Column Sums in R ?
  34. How to Calculate Row and Column Means in R ?
  35. How to Find Row and Column Max/Min in R ?
  36. How to Perform Element-Wise Comparisons in R ?