How to Convert Data Frame to matrix Class in R (Example Code)

This tutorial shows how to change a data object from data.frame to matrix class in the R programming language.

Construction of Example Data

example_data_frame <- data.frame(col1 = 1:4,       # Creating example frame
                                 col2 = 4:1,
                                 col3 = 5:8,
                                 col4 = 1)
example_data_frame                                 # Showing data frame in console
#   col1 col2 col3 col4
# 1    1    4    5    1
# 2    2    3    6    1
# 3    3    2    7    1
# 4    4    1    8    1

Example: Applying as.matrix() Function to Change data.frame to matrix Class

example_matrix <- as.matrix(example_data_frame)    # Change data.frame to matrix
example_matrix                                     # Showing matrix in console
#      col1 col2 col3 col4
# [1,]    1    4    5    1
# [2,]    2    3    6    1
# [3,]    3    2    7    1
# [4,]    4    1    8    1

Related Tutorials & Further Resources

You may find some further R programming tutorials on topics such as time objects, numeric values, and character strings in the following list:

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