Martin Maechler [EMAIL PROTECTED] a écrit :
CG == Christophe Genolini [EMAIL PROTECTED]
on Mon, 31 Mar 2008 00:31:55 +0200 writes:
Generally I find it's good to look at examples that work.
For examples of packages using tests, look at source
packages on CRAN. Run the
callcc is similar to the yield keyword in python and c#
it lets you define e.g. a generator of lists of numbers.
Gabor Grothendieck wrote:
Would anyone like to explain if callCC in R 2.7.0 gives
anything that on.exit does not already provide?
It seems that the exit condition once
Prof Brian Ripley wrote:
I didn't say 'USE_RINTERNALS is not needed' for your code: I said it was
not used for the code that was run.
I see. My original point was that the text of the Writing R extension
manual advises against using 'USE_RINTERNALS' but then gives an example
that only works
hmm, I see 219 out 1378 CRAN packages having a 'tests'
subdirectory, so it seems you have been a bit unlucky. ;-)
How unlucky exactly?
fisher.test(matrix(c(0,20,219,1159),2,2))
Hey, no, I desagree ! I random 10, the 10 first I take the ten first
package. So this in not random.
May be
Dear Prof Ripley,
Prof Brian Ripley wrote:
But it is not taken 'verbatim from src/main/print.c' (at least not in
that version of R), and the code is not run with USE_RINTERNALS defined
when write-barrier checking is enabled.
The example has been updated to match the current code in 2.7.0
No. First class continuations of the kind provided in scheme can be
used as a means to implement generators, but downward-only
continuations as currently provided in R are not sufficient for that.
This version is intended only as a non-local exit mechanism.
Best,
luke
On Mon, 31 Mar 2008,
Can I suggest some clarification of the help page for callCC
plainly stating that it is intended to exit from a deeply nested
set of calls.
On a casual reading I thought the exact same thing as f.jamitsky.
On Tue, Apr 1, 2008 at 6:32 AM, Luke Tierney [EMAIL PROTECTED] wrote:
No. First class
