You are trying to use shortcuts where shortcuts are not appropriate
and having to go a lot longer around than if you did not use the
shortcut, see fortune(312).
You should really reread the help page: help("[[") and section 6.1 of
An Introduction to R.
Basically you should be able to do something
Hi Clark,
In your function you are using the variable 'y' and not 'data'. If this
indeed is your intention, there is no need to pass 'data' to your function,
otherwise all 'y's in your function should be 'data'.
Does this work for you:
f <- function(data, oldnames, subset.val = 4){
data <- dat
Hello,
I am trying to write a function that adds a few columns to a data.frame. The
function uses the columns in a specific way. For instance, it might take a^2
+ c to produce a column d. Or it might do more complex manipulations that I
don't think I need to discuss here. I want to keep x as a dat
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