In this article, we will discuss how to fill the empty matrix with values in R Programming Language. First, let's create an empty matrix.
Syntax:
matrix_name[row,column]=value.
Where, row and column are the numbers in which the value is occupied.
Example:
# create empty matrix.
a<-matrix(nrow=4,ncol=4)
# display matrix
print(a)
# filling empty matrix with value at
# 2nd row and 4 th column
a[2,4]=4
print(a)
# create empty matrix.
a<-matrix(nrow=4,ncol=4)
# filling empty matrix with value at
# 4th column
a[,4]=4
print(a)
# create empty matrix.
a<-matrix(nrow=4,ncol=4)
# filling empty matrix with value at
# 4th row
a[4,]=4
print(a)
Output:
We can replace with same value for all empty value in a matrix, by using [,].
Example
# create empty matrix.
a<-matrix(nrow=4,ncol=4)
# display matrix
print(a)
# replace empty matrix with 5 value
a[,]=5
print(a)
Output:
Even a range can be inserted.
Example
# create empty matrix.
a<-matrix(nrow=4,ncol=4)
# display matrix
print(a)
# replace empty matrix with
# 1 to 16 values
a[,]=1:16
print(a)
Output:
