In this article, we are going to convert the given matrix into the vector in R programming language.
Conversion of the matrix to vector by row
Method 1: Using c() function
Simply passing the name of the matrix will do the job.
Syntax:
c(matrix_name)
Where matrix_name is the name of the input matrix
Example 1:
# create a matrix with 12 elements # with 4 rows and 3 columns matrix= matrix (1:12,nrow=4,ncol=3)
print (matrix)
# convert matrix to vector using c() # function a= c (matrix)
print (a)
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Output:
Example 2:
# create a matrix with 16 elements # with 4 rows and 4 columns matrix= matrix (1:16,nrow=4,ncol=4)
print (matrix)
# convert matrix to vector using # c() function a= c (matrix)
print (a)
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Output:
Method 2: Using as.vector() function
This function is used to convert matrix to vector so again simply passing the matrix name is enough.
Syntax:
as.vector(matrix)
Example:
# create a matrix with 12 elements # with 4 rows and 3 columns matrix= matrix (1:12,nrow=4,ncol=3)
print (matrix)
# convert matrix to vector using # as.vector() function a= as.vector (matrix)
print (a)
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Output:
Example 2:
# create a matrix with 16 elements with 4 rows and 4 columns matrix= matrix (1:16,nrow=4,ncol=4)
print (matrix)
# convert matrix to vector using as.vector() function a= as.vector (matrix)
print (a)
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Output
Conversion of the matrix to vector by column
Method 1: Using c() function along with t() function
t() function is used to transpose the given matrix. It will transpose rows as columns and columns as rows.
Syntax:
t(matrix)
where the matrix is the input matrix
After applying t() we can apply c() and as.vector() functions to convert the matrix to vector
Syntax:
c(t(matrix))
Example 1:
# create a matrix with 12 elements # with 4 rows and 3 columns matrix= matrix (1:12,nrow=4,ncol=3)
print (matrix)
# convert matrix to vector using # c() function along with t() a= c ( t (matrix))
print (a)
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Output:
Example 2:
# create a matrix with 12 elements # with 2 rows and 6 columns matrix= matrix (1:12,nrow=2,ncol=6)
print (matrix)
# convert matrix to vector using # c() function along with t() a= c ( t (matrix))
print (a)
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Output:
Method 2: Using as.vector() function along with t() function
The work of t() is same as above. After the transpose has been taken, the matrix is converted to vector using as.vector().
Syntax:
as.vector(t(matrix))
Example
# create a matrix with 12 elements # with 2 rows and 6 columns matrix= matrix (1:12,nrow=2,ncol=6)
print (matrix)
# convert matrix to vector using # as.vector() function along with t() a= as.vector ( t (matrix))
print (a)
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Output:
Example 2:
# create a matrix with 4 elements # with 2 rows and 2 columns matrix= matrix (1:4,nrow=2,ncol=2)
print (matrix)
# convert matrix to vector using # as.vector() function along with t() a= as.vector ( t (matrix))
print (a)
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Output