OK I think I'm getting it, but one more question if I may...
When I write a function, I don't protect the arguments explicitly (I
understand that they should be protected within the calling function)
- are my functions examples of functions that "protect their
arguments"? Looking at the code for s
Hi Bill,
yes, emulating atomic writing by writing to a temporary file and then
renaming definitely lowers the risk for corruptions. I actually take
a similar approach in the Aroma Project (aroma.affymetrix et al.),
R.utils::saveObject(), R.utils::downloadFile() and more, and it
provides a great p
On Sat, Sep 15, 2012 at 12:17 PM, Simon Urbanek
wrote:
>
> On Sep 15, 2012, at 1:21 PM, Henrik Bengtsson wrote:
>
>> I hardly know anything about the format used in (non-compressed)
>> serialization/RDS, but hoping someone with more knowledge could give
>> me some feedback;
>>
>> Consider two R pr
Why not write the RDS file more atomically - write it to a
temporary file and rename that file to its final name when
it is completely written? E.g.,
saveRDS.atomically
function (object, file, ...)
{
tfile <- tempfile(basename(file), dirname(file))
on.exit(if (file.exists(tfile)) unlink(
On Sep 15, 2012, at 1:21 PM, Henrik Bengtsson wrote:
> I hardly know anything about the format used in (non-compressed)
> serialization/RDS, but hoping someone with more knowledge could give
> me some feedback;
>
> Consider two R processes running in parallel on the same unknown file
> system.
On Sep 15, 2012, at 2:57 PM, Simon Urbanek wrote:
>
> On Sep 15, 2012, at 11:28 AM, Simon Knapp wrote:
>
>> Hi Simon,
>>
>> Thanks for your advice, but I'm still not clear. In my case I don't
>> want to modify the result - the integer acts as a handle for indexing
>> an array in later calls ba
On Sep 15, 2012, at 11:28 AM, Simon Knapp wrote:
> Hi Simon,
>
> Thanks for your advice, but I'm still not clear. In my case I don't
> want to modify the result - the integer acts as a handle for indexing
> an array in later calls back into my library.
>
> As I understand it, returning result l
[ Email repost 3 of 3 ]
From: Dirk Eddelbuettel
To: R-devel org
Subject: [Patch] Minor glitch in 'Writing R Extensions'
Date: Mon, 3 Sep 2012 10:58:32 -0500
The (marked up in info mode) manual Writing R Extensions says in 6.1.3
-- Function: double fprec (double X, double D
Over the last few months, I had sent emails with follow-up suggestions,
questions and (minimal) patches to R Core (two) and R-Devel (one).
Not one of these emails was met with any follow-up I am aware of.
I will resend them here so that they will at least get archived in case
someone else ponder
[ Email repost 2 of 3 ]
From: Dirk Eddelbuettel
To: R-core , Prof Brian D Ripley
Subject: Why fix all.equal for POSIXct at 1 msec?
Date: Sat, 28 Jul 2012 10:29:52 -0500
In R-devel as of today, the following simple loop
edd@max:~/svn/r-devel$ ~/bin/R-devel.sh
R Under d
[ Email resend 1 of 3 ]
From: Dirk Eddelbuettel
To: R-core
CC: Philip Johnson , e...@debian.org
Subject: The X11 device patch
Date: Wed, 27 Jun 2012 11:53:13 -0500
R Core,
*Great* to see this bubble up in the NEWS aggregation:
2.15.1 patched NEW FEATURES
The
On 09/14/2012 07:16 AM, Jeff Ryan wrote:
Refreshing the memory on performance:
http://r.789695.n4.nabble.com/reduce-limit-number-of-arguments-in-methods-cbind-td921600.html#a921601
short comment below...
My issue had been resolved by a more careful approach taken by timeSeries.
The other o
I hardly know anything about the format used in (non-compressed)
serialization/RDS, but hoping someone with more knowledge could give
me some feedback;
Consider two R processes running in parallel on the same unknown file
system. Both of them write and read to the same RDS file foo.rds
(without c
Hi Simon,
Thanks for your advice, but I'm still not clear. In my case I don't
want to modify the result - the integer acts as a handle for indexing
an array in later calls back into my library.
As I understand it, returning result like
SEXP func(SEXP arg) {return arg;}
would not copy arg and he
On Sep 14, 2012, at 11:10 PM, Simon Knapp wrote:
> Hi List,
>
> I'd imagine this is a question that has been answered before, but I
> can't seem to track it down, sorry for the duplication if it has.
>
> I am writing an interface for a C library and want to return an S4
> class from the 'constr
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