Thanks Kasper,
I have been meaning to have a good look at some of the Bioconductor source for
a while now. So will check it out.
But I am also quite enthusiastic about what is happening with referenced
classes and will be having a good play around with that in the coming weeks.
Troy
> -Ori
Troy
For what it's worth, the ExpressionSet / eSet class in Biobase from
Bioconductor has for a long time implemented a pass-by-reference
system, using amongst other stuff locked environments to make sure
things are read only. You might find this useful to look at.
In general it is hard to compl
On 10/07/2010 12:58 PM, Duncan Murdoch wrote:
>>
>> R 2.12.2 (currently beta) has in its NEWS :
>
> Just pointing out a typo: the version of the beta is 2.12.0.
>
> Duncan Murdoch
>
>>
>> o A facility for defining reference-based S4 classes (in the OOP
>> style of Java, C++, etc.) ha
The model.frame function has trouble with a certain type of really long
formula. Here is a test:
tname <- paste('var', 1:50, sep='')
tmat <- matrix(rnorm(500), ncol=50, dimnames=list(NULL, tname))
tdata <- data.frame(tmat)
temp1 <- paste( paste(tname, tname, sep='='), collapse=', ')
temp2 <- pas
> -Original Message-
> From: Martin Maechler [mailto:maech...@stat.math.ethz.ch]
> Sent: Thursday, 7 October 2010 9:50 PM
> To: Troy Robertson
> Cc: 'Martin Morgan'; 'r-devel@R-project.org'; 'John Chambers'
> Subject: Re: [Rd] Recursion error after upgrade to R_2.11.1
> [Sec=Unclassified] [
In working with small numbers, I usually look for a solution involving a
log transformation. For instance, when a or b are very small, we can
compute the ratio
a / ( a + b )
more safely by
1 / ( 1 + exp( log(b) - log(a) ) )
Alternative data types are sure to cause issues with portability. It's
Hi,
On 09/30/2010 10:45 AM, Hervé Pagès wrote:
[...]
If that is not desirable, could the tools:::.build_packages() function
not put quotes around the value of the TAR environment variable (the
code does shQuote(TAR)), at least on Windows, so I can set this
variable to
tar --no-same-owner
Cur
This has been fixed in R-beta. Thanks! H.
On 10/01/2010 06:31 PM, Hervé Pagès wrote:
Hi,
The cleanup_pkg() function defined the big tools:::.build_packages()
function in tools/R/build.R is currently broken. When Makefiles are
used cleanup_pkg() doesn't clean anything because of the way system2
On Oct 7, 2010, at 2:28 PM, Richard D. Morey wrote:
> I'm using .Call() to call C code from R under Windows (on an Intel Core 2
> duo). The C code involves some very small numbers, and I think I'm losing
> precision using doubles.
The magnitude of numbers has really nothing to do with precisio
I'm using .Call() to call C code from R under Windows (on an Intel
Core 2 duo). The C code involves some very small numbers, and I think
I'm losing precision using doubles. I thought I might use long doubles
to see if I can get that precision back. I have a few questions:
1. Does this affect
On 07/10/2010 6:49 AM, Martin Maechler wrote:
"TR" == Troy Robertson
on Thu, 7 Oct 2010 13:50:49 +1100 writes:
>>
>> On 10/06/2010 06:12 PM, Troy Robertson wrote:
>> > Hi all,
>> >
>> > After no replies to my previous message I thought I might show some
>> > code
> "TR" == Troy Robertson
> on Thu, 7 Oct 2010 13:50:49 +1100 writes:
>>
>> On 10/06/2010 06:12 PM, Troy Robertson wrote:
>> > Hi all,
>> >
>> > After no replies to my previous message I thought I might show some
>> > code to demonstrate the change and again se
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