Question

How to create matrix with numbers and NA values in R

Answer 1

m = matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
 
print(m)
 

 
 
       
       
# run:
#
#       [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
#  [1,]    1    5    3   10    8    1    2    7   NA     6
#  [2,]    3    8    8    4    3    6   NA    8    7     9
#  [3,]   10   NA   10    7    2    1    8   NA    6     5
#  [4,]    4   NA    4   10    3   10    8    1    8     3
#  [5,]    7    9    1    8    5    4    9   10    1     2
#  [6,]    2   10    9    7   NA    5    1    6    8     9
#  [7,]   10   10    5   NA    8    7    5    7    4    NA
#  [8,]   10    5    4    7    3   NA   10    7   10     8
#  [9,]    4    5   10    7    7    6    8    6    9     9
# [10,]   10    9    1    3   10   10    8    8   NA     1
#

 

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