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 list
s, that is, you can use the $
and [[
operators.
Diese Übung ist Teil des Kurses
Object-Oriented Programming with S3 and R6 in R
Anleitung zur Übung
- Create a new environment named
env
. - Use the dollar operator to add an element to
env
namedperfect
that contains the first three perfect numbers,6
,28
,496
. - Use the double square bracket operator to add an element to
env
namedbases
that contains the letters of DNA bases,A
,C
,G
,T
.
Interaktive Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
# Define a new environment
env <-
# Add an element named perfect
# Add an element named bases