Working with Environments (1)
The environment variable type is similar to a list in that it can contain other variables.
You can create a new environment using new.env() (docs).
Variables can be added to the environment using the same syntax as for lists, that is, you can use the $ and [[ operators.
Cet exercice fait partie du cours
Object-Oriented Programming with S3 and R6 in R
Instructions
- Create a new environment named
env. - Use the dollar operator to add an element to
envnamedperfectthat contains the first three perfect numbers,6,28,496. - Use the double square bracket operator to add an element to
envnamedbasesthat contains the letters of DNA bases,A,C,G,T.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Define a new environment
env <-
# Add an element named perfect
# Add an element named bases