'The R Inferno' page 36.
Patrick Burns
patr...@burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of The R Inferno and A Guide for the Unwilling S User)
SnowManPaddington wrote:
Hi ya, thanks a lot everyone!! I changed rr:ii-1 to rr:(ii-1) and the code
works!!! I finally get
I apologize for posting a wrong opinion; I should of course have checked
before posting.
Henrik's examples illustrate something I had never realized before, and
it really surprised me!
Where can I read the technical details of this scoping aspect of 'for'
as it still presents
some subtle puzzles
On 1/29/2009 10:39 AM, dav...@rhotrading.com wrote:
I apologize for posting a wrong opinion; I should of course have checked
before posting.
Henrik's examples illustrate something I had never realized before, and
it really surprised me!
Where can I read the technical details of this scoping
Certainly not a complete description, but
'The R Inferno' talks about this on page 62.
Patrick Burns
patr...@burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of The R Inferno and A Guide for the Unwilling S User)
dav...@rhotrading.com wrote:
I apologize for posting a wrong
On 1/29/2009 11:06 AM, Patrick Burns wrote:
Certainly not a complete description, but
'The R Inferno' talks about this on page 62.
Hmmm, I don't think I agree with that description. There's only one
object named i in that example (which was
for (i in 1:6) {
cat('\n i is', i, '\n\n')
Thanks for straighten this out. Sorry for my misleading suggestion
that special scoping rules comes into play; it is just about
reassignments at the beginning of each loop. Here is a slightly
better illustration:
ii - start;
cat(ii:,ii,\n);
for (ii in 1:2) {
cat(Outer ii:,ii,\n);
for (ii in
Duncan Murdoch wrote:
On 1/29/2009 10:39 AM, dav...@rhotrading.com wrote:
snip
And if the loop variable does not exist before the 'for', why is it
created in the parent(?) environment at all?
It's created in the current evaluation frame, because that's where
everything gets created unless
The lines below made me understand clearly. Maybe they are already in
some documentation,
but if not, it might help others to avoid my misunderstanding.
Thanks to all for the clarifications.
-- David
-Original Message-
From: Duncan Murdoch [mailto:murd...@stats.uwo.ca]
Sent: Thursday,
Hi ya, thanks a lot everyone!! I changed rr:ii-1 to rr:(ii-1) and the code
works!!! I finally get some estimates from the optimization function (i am
doing a logit model with 2 segments). Thanks thanks!!!
I didn't realize rr:(ii-1) and rr:ii-1 would make such a big difference,
especially because
On Thu, Jan 29, 2009 at 12:05 PM, Henrik Bengtsson h...@stat.berkeley.edu
wrote:
PS. About the double-letter index (e.g. ii vs. i); A few years ago
someone suggested me to use this, because it is much easier to search
for 'ii' in an editor compared with a single-letter 'i'. So true. I
made
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