Question

How to add two matrices in R

Answer 1

vec <- c(1, 2, 3, 1, 0, 2, 3, 1, 1)
m1 <- matrix(vec, nrow = 3, ncol = 3)
  
vec <- c(2, 1, 3, 0, 0, 1, 2, 1, 0)
m2 <- matrix(vec, nrow = 3, ncol = 3)
 
add <- m1 + m2
   
print(m1)
print(m2)
print(add)
  
  
  
    
    
# run:
#
#      [,1] [,2] [,3]
# [1,]    1    1    3
# [2,]    2    0    1
# [3,]    3    2    1
#      [,1] [,2] [,3]
# [1,]    2    0    2
# [2,]    1    0    1
# [3,]    3    1    0
#      [,1] [,2] [,3]
# [1,]    3    1    5
# [2,]    3    0    2
# [3,]    6    3    1
#

 

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