How to Fill Matrix with Random Numbers in R (Example Code)

This tutorial explains how to draw random numbers and fill them into a matrix in the R programming language.

Example: Apply sample() Function to Draw Random Values for Matrix

set.seed(984375)                     # Draw random values for matrix
example_matrix <- matrix(sample(1:100, 50, replace = TRUE),
                         nrow = 10)
example_matrix                       # Display random matrix in RStudio console
#       [,1] [,2] [,3] [,4] [,5]
#  [1,]   81   96   50    1   70
#  [2,]   80   26   43   67   83
#  [3,]   29   39   95   79    3
#  [4,]   31   65   40   75   54
#  [5,]   29    5   90   92   30
#  [6,]   13    5   80   72   19
#  [7,]   47    5   80   98   22
#  [8,]   61   98   71   41    9
#  [9,]   22   46   56    7   63
# [10,]   83    9   43   38   93

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