I am just starting to experiment with writing a function and have run into
what seems like a limitation or more likely a lack of understanding on my
part.
Very Simple Example: I want to define a function that does 1+1=2.
z<-1
ADD<-function(x)
{
x<-x+1
}
ADD(z)
z
output for z is 1 not the expected 2.
Now if I were to do print(x+1) instead of x<-x+1 it does return 2, so the
function seems ok with x+1, but not ok with x<-. Is there a way to define a
variable inside a function or am I violating some rule that I don't know
about?
Thanks for the help!
Will
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