How to Subset a Table in R (Example Code)

In this article, I’ll show how to extract a subset of a table object in the R programming language.

Creation of Example Data

data(mtcars)                                     # Example data
head(mtcars)
#                    mpg cyl disp  hp drat    wt  qsec vs am gear carb
# Mazda RX4         21.0   6  160 110 3.90 2.620 16.46  0  1    4    4
# Mazda RX4 Wag     21.0   6  160 110 3.90 2.875 17.02  0  1    4    4
# Datsun 710        22.8   4  108  93 3.85 2.320 18.61  1  1    4    1
# Hornet 4 Drive    21.4   6  258 110 3.08 3.215 19.44  1  0    3    1
# Hornet Sportabout 18.7   8  360 175 3.15 3.440 17.02  0  0    3    2
# Valiant           18.1   6  225 105 2.76 3.460 20.22  1  0    3    1

Example: How to Extract a Table Subset

mtcars_tab <- table(mtcars$cyl)                  # Create table with all values
mtcars_tab                                       # Display table
#  4  6  8 
# 11  7 14
mtcars_tab_new <- mtcars_tab[mtcars_tab > 10]    # Subsetting table object
mtcars_tab_new                                   # Display updated table
#  4  8 
# 11 14

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