Concatenate two Given Matrices of the same Column but different rows in R Programming

R Programming: Matrix Exercise-13 with Solution

Write a R program to concatenate two given matrixes of same column but different rows.

Sample Solution:

R Programming Code:

# Create the first matrix with values 1 to 12 and 3 columns
x = matrix(1:12, ncol=3)

# Create the second matrix with values 13 to 24 and 3 columns
y = matrix(13:24, ncol=3)

# Print the first matrix
print("Matrix-1")
print(x)

# Print the second matrix
print("Matrix-2")
print(y)

# Concatenate the two matrices by rows and get the dimensions of the result
result = dim(rbind(x, y))

# Print the dimensions of the concatenated matrix
print("After concatenating two given matrices:")
print(result)

Output:

[1] "Matrix-1"
     [,1] [,2] [,3]
[1,]    1    5    9
[2,]    2    6   10
[3,]    3    7   11
[4,]    4    8   12
[1] "Matrix-2"
     [,1] [,2] [,3]
[1,]   13   17   21
[2,]   14   18   22
[3,]   15   19   23
[4,]   16   20   24
[1] "After concatenating two given matrices:"
[1] 8 3              

Explanation:

• Create First Matrix (x)
• x = matrix(1:12, ncol=3)
• Creates a matrix x with values from 1 to 12, arranged into 3 columns.
• Create Second Matrix (y)
• y = matrix(13:24, ncol=3)
• Creates a matrix y with values from 13 to 24, arranged into 3 columns.
• Print First Matrix
• print("Matrix-1")
• Displays the label "Matrix-1" for clarity.
• print(x)
• Prints the contents of matrix x.
• Print Second Matrix
• print("Matrix-2")
• Displays the label "Matrix-2" for clarity.
• print(y)
• Prints the contents of matrix y.
• Concatenate Matrices and Get Dimensions
• result = dim(rbind(x, y))
• Concatenates matrices x and y by rows (rbind) and stores the dimensions of the resulting matrix in result.
• Print Dimensions of Concatenated Matrix
• print("After concatenating two given matrices:")
• Displays the label for the result of concatenation.
• print(result)
• Prints the dimensions of the concatenated matrix, showing the number of rows and columns.

R Programming Code Editor:

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