How to Apply the do.call() & call() Functons in R (2 Examples)

This tutorial shows how to apply the do.call and call functions in the R programming language.

Creation of Example Data

data(iris)                                   # Load iris
head(iris)                                   # Head of iris
#   Sepal.Length Sepal.Width Petal.Length Petal.Width Species
# 1          5.1         3.5          1.4         0.2  setosa
# 2          4.9         3.0          1.4         0.2  setosa
# 3          4.7         3.2          1.3         0.2  setosa
# 4          4.6         3.1          1.5         0.2  setosa
# 5          5.0         3.6          1.4         0.2  setosa
# 6          5.4         3.9          1.7         0.4  setosa

Example 1: Using do.call Function in R

do.call("colMeans", list(iris[ , 1:4]))      # Compute colMeans using do.call
# Sepal.Length  Sepal.Width Petal.Length  Petal.Width 
#     5.843333     3.057333     3.758000     1.199333

Example 2: Using call Function in R

my_call <- call("colMeans", iris[ , 1:4])    # Applying call() function
eval(my_call)                                # Evaluating call
# Sepal.Length  Sepal.Width Petal.Length  Petal.Width 
#     5.843333     3.057333     3.758000     1.199333

Leave a Reply

Your email address will not be published.

Fill out this field
Fill out this field
Please enter a valid email address.
You need to agree with the terms to proceed

Menu
Top