R Programming: Convert a matrix to a 1 dimensional array

R Programming: Matrix Exercise-8 with Solution

Write a R program to convert a matrix to a 1 dimensional array.

Sample Solution:

R Programming Code:

row_names = c("row1", "row2", "row3", "row4")
col_names = c("col1", "col2", "col3", "col4")
M = matrix(c(1:16), nrow = 4, byrow = TRUE, dimnames = list(row_names, col_names))
print("Original Matrix:")
print(M)
result = as.vector(M)
print("1 dimensional array (column wise):")
print(result)
result = as.vector(t(M))
print("1 dimensional array (row wise):")
print(result)

Sample Output:

[1] "Original Matrix:"
     col1 col2 col3 col4
row1    1    2    3    4
row2    5    6    7    8
row3    9   10   11   12
row4   13   14   15   16
[1] "1 dimensional array (column wise):"
 [1]  1  5  9 13  2  6 10 14  3  7 11 15  4  8 12 16
[1] "1 dimensional array (row wise):"
 [1]  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16                

R Programming Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a R program to extract the submatrix whose rows have column value > 7 from a given matrix.
Next: Write a R program to create a correlation matrix from a dataframe of same data type.