Vector names()
Let's return to the example about January and February's returns. As a refresher, in January you earned a 5% return, and in February, an extra 2% return. Being the savvy data scientist you are, you realize that you can put these returns into a vector! That would look something like this:
ret <- c(5, 2)
This is great! Now all of the returns are in one place. However, you could go one step further by adding names to each return in your vector. You do this using names(). Check this out:
names(ret) <- c("Jan", "Feb")
Printing ret now returns:
Jan Feb
5 2
Pretty cool, right?
Cet exercice fait partie du cours
Introduction to R for Finance
Instructions
- Defined for you are a vector of 12 monthly returns, and a vector of month names.
- Add
monthsas names toretto create a more descriptive vector. - Print out
retto see the newly named vector!
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Vectors of 12 months of returns, and month names
ret <- c(5, 2, 3, 7, 8, 3, 5, 9, 1, 4, 6, 3)
months <- c("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
# Add names to ret
names(ret) <-
# Print out ret to see the new names!