Working with Environments (2)
Most types of R variable use "copy by value", meaning that when you take a copy of them, the new variable has its own copy of the values. In this case, changing one variable does not affect the other.
Environments use a different system, known as "copy by reference", so that all copies are identical; changing one copy changes all the copies.
Useful biology fact: RNA bases are slightly different to DNA bases. They are A, C, G, and U.
Diese Übung ist Teil des Kurses
Object-Oriented Programming with S3 and R6 in R
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# Assign lst
lst <- list(
perfect = c(6, 28, 496),
bases = c("A", "C", "G", "T")
)
# Copy lst
lst2 <- ___
# Change lst's bases element
___
# Test lst and lst2 identical
___