R Programming - Convert a given Matrix to a List
Write a R program to convert a given matrix to a list.
Sample Solution :
R Programming Code :
Output:
[1] "Original matrix:" [,1] [,2] [1,] 1 3 [2,] 2 4 [1] "list from the said matrix:" $`1` [1] 1 2 $`2` [1] 3 4
Explanation:
- Create a Matrix:
- m = matrix(1:10, nrow = 2, ncol = 2)
- Creates a 2x2 matrix m with values from 1 to 10. The matrix will have 2 rows and 2 columns.
- Print Original Matrix:
- print("Original matrix:")
- Prints the message "Original matrix:" to indicate the following output is the original matrix.
- print(m)
- Prints the matrix m.
- Convert Matrix to List:
- l = split(m, rep(1:ncol(m), each = nrow(m)))
- Converts the matrix m into a list l.
- The split function is used to split the matrix into a list of vectors, with each vector containing the elements of a column.
- rep(1:ncol(m), each = nrow(m)) creates a repetition pattern to ensure that each column's elements are grouped together.
- Print List from Matrix:
- print("list from the said matrix:")
- Prints the message "list from the said matrix:" to indicate the following output is the list derived from the matrix.
- print(l)
- Prints the list l, which contains the columns of the matrix as separate elements.
R Programming Code Editor:
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