Question

How to convert data frame to matrix in R

Answer 1

df = data.frame(X = c(4, 7, 1, 3), Y = c(98, 12, 87, 31), Z = c(770, 500, 200, 100))                
  
print(df)
  
m = data.matrix(df)

print(m)
  
  
  
        
        
# run:
#
#   X  Y   Z
# 1 4 98 770
# 2 7 12 500
# 3 1 87 200
# 4 3 31 100
#      X  Y   Z
# [1,] 4 98 770
# [2,] 7 12 500
# [3,] 1 87 200
# [4,] 3 31 100
#

 

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