Dear R-users,
currently I am working with the R version 2.4.1.
I realized it has a feature, which might be wonderful (as so many things in
R), but in this case might be a bit dangerous as well. It seems that columns
of a data frame can be called just by indicating the first letter of the
name of the column.
For example:
first_item <- seq(1,10)
second_item <- seq(11,20)
dat <- data.frame(first_item, second_item)
names(dat)
# [1] "first_item" "second_item"
dat$f
# [1] 1 2 3 4 5 6 7 8 9 10
dat$s
# [1] 11 12 13 14 15 16 17 18 19 20
The good thing is, that if there is more than one column starting with the
same letter(s), more than one letter has to be given to call the column.
However, I would appreciate if I could choose an option in my workspace,
whether this type of shortcut is allowed or not.
Is there such an option?
Thanks for any potential hints.
Best wishes,
P. Olsson
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