On 03/02/2013 01:12 PM, Sarah Goslee wrote:
On Fri, Mar 1, 2013 at 7:06 PM, C W <tmrs...@gmail.com> wrote:
Thanks, that was just an example I came up with. I was just curious if
using same variable names in different functions would cause problems.
No. The environment of a function is independent of other functions.
Especially with reserved words.
Yes. Using reserved words can cause all kinds of subtle problems. Avoid it.
Very sound advice. But it should be noted that "t", "c", and "matrix"
to which
the OP referred are *not* technically reserved words. Nonetheless their use
as names of user-defined objects should be eschewed. See fortune("dog").
You *can't* actually assign values to reserved words. E.g.
TRUE <- 42
throws an error. (Whereas matrix <- 42, bad form though it may be,
does not throw an error.)
cheers,
Rolf Turner
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