I use the R.oo Object class for what has been suggested previously.
The Object class can be thought of as utility wrapper class for
environments (actually environments gained much of its behavior some
time ago when "$" etc was being mapped to get() calls).
For caching to file, take a look at the R
Hello all,
I've had the following apropos alternative in my ~/.Rprofile for some
time, and have found it more useful than the current version.
Basically, my version ignores case when searching.
If others find this useful, perhaps apropos could be suitably patched
(and I'd be willing to create suc
Tamas K Papp <[EMAIL PROTECTED]> writes:
> On Wed, Dec 13, 2006 at 03:05:46PM -0800, Robert Gentleman wrote:
>
>> e1 = new.env(hash=TRUE)
>>
>> e1[["1"]] = whateveryouwant
>>
>> ie. just transform to characters, but I don't see why you want to do
>> that - surely there are more informative name
e1 = new.env(hash=TRUE)
e1[["1"]] = whateveryouwant
ie. just transform to characters, but I don't see why you want to do
that - surely there are more informative names to be used -
Tamas K Papp wrote:
> Hi Robert,
>
> Thanks for your answer. I would create and environment with
> new.env(),
On Wed, Dec 13, 2006 at 03:05:46PM -0800, Robert Gentleman wrote:
> e1 = new.env(hash=TRUE)
>
> e1[["1"]] = whateveryouwant
>
> ie. just transform to characters, but I don't see why you want to do
> that - surely there are more informative names to be used -
Because they are derivatives, and b
On 12/13/06, Peter Dalgaard <[EMAIL PROTECTED]> wrote:
> Göran Broström wrote:
> > I tried once more under the debugger, and
> >
> > ++
> > [EMAIL PROTECTED]:~/R/BEMANNING/Doc$ R -d gdb
> > GNU gdb 6.5-debian
> > Copyright (C) 2006 Free Software Foundation, I
Hi Robert,
Thanks for your answer. I would create and environment with
new.env(), but how can I assign and retrieve values based on a
numerical index (the derivative)? The example of the help page of
assign explicitly shows that assign("a[1]") does not work for this
purpose.
Thanks,
Tamas
On
the idea you are considering is also, at times, referred to as
memoizing. I would not use a list, but rather an environment, and
basically you implement something that first looks to see if there is a
value, and if not, compute and store. It can speed things up a lot in
some examples (and slow
Hi all,
I don't understand why this does not what I expect :
## code start here ##
setClass("num",representation(x="numeric"))
num<-function(x) new("num",x=x)
add<-function(e1,e2) {
cat("Computing
",deparse(substitute(e1)),"+",deparse(substitute(e2)),"\n")
[EMAIL PROTECTED]@x
Hi,
I am trying to find an elegant way to compute and store some
frequently used matrices "on demand". The Matrix package already uses
something like this for storing decompositions, but I don't know how
to do it.
The actual context is the following:
A list has information about a basis of a B-
Robert Gentleman wrote:
> Hi,
>We had the "names" discussion and, AFAIR, the idea that someone might
> misinterpret the output as suggesting that one could index by number,
> seemed to kill it. A more reasonable argument against is that names<- is
> problematic.
>
> You can use $, [[ (wit
Greetings all,
I was in the process of creating a function to generate profile
likelihood confidence intervals for a proportion using a binomial glm.
This is a component of a larger function to generate and plot confidence
intervals for proportions using the above, along with bootstrap (BCa),
Wils
Hi,
We had the "names" discussion and, AFAIR, the idea that someone might
misinterpret the output as suggesting that one could index by number,
seemed to kill it. A more reasonable argument against is that names<- is
problematic.
You can use $, [[ (with character subscripts), and yes ls does
On Wednesday 13 December 2006 1:23 pm, Marcus G. Daniels wrote:
> Vladimir Dergachev wrote:
> > 2. It would be nice to have true hashed arrays in R (i.e. O(1) access
> > times). So far I have used named lists for this, but they are O(n):
>
> new.env(hash=TRUE) with get/assign/exists works ok.
Well, fortran subroutines don't really have return values (versus
fortran functions, which do - as far as I know that's the only
difference between fortran subroutines and functions).
There is also a somewhat sticky matter, of C routines that returns
fairly complex types, like pointers, strings.
Hi
Giampiero Salvi wrote:
> Hi all,
> I would like to add phonetic symbols in my figures. Usually I typeset
> my documents in LaTeX and I use the tipa [1] package to get
> International Phonetic Alphabet (IPA) fonts. So, my problem would be
> solved if I could insert LaTeX commands in the text()
Vladimir Dergachev wrote:
> 2. It would be nice to have true hashed arrays in R (i.e. O(1) access
> times). So far I have used named lists for this, but they are O(n):
>
new.env(hash=TRUE) with get/assign/exists works ok. But I suspect its
just too easy to use named lists because it is e
On Wednesday 13 December 2006 6:01 am, Martin Maechler wrote:
>
> - Vladimir, have you verified your 'take2' against recent versions
> of R-devel?
Yes.
>
> - If they still work, could you re-post them to R-devel, this
> time using a proper MIME type,
> i.e. most probably one of
> appl
I think the efficiency gain is worthwhile.
Thx.
-jason
- Original Message -
From: "Martin Maechler" <[EMAIL PROTECTED]>
To: "Marcus G. Daniels" <[EMAIL PROTECTED]>
Cc: ; "Vladimir Dergachev"
<[EMAIL PROTECTED]>
Sent: Tuesday, December 12, 2006 10:08 AM
Subject: Re: [Rd] data frame subset
Thanks to Uwe Ligges and Andy Jaworski for their responses. I thought the
Rblas I was using was from CRAN master, and I when I encountered the problem
originally, I downloaded a new copy from CRAN master. However, I must have
misplaced it on download and used an old copy. Long story short, th
Martin Maechler wrote:
> [snip]
> Note however that some of these changes are backward
> incompatible. I do hope that the changes gaining efficiency
> for such large data frames are worth some adaption of
> current/old R source code..
>
> Feedback on this topic is very welcome!
Martin, my f
Re: src/main/dotcode.c:do_dotCode()
The value, if there is one, of a function called by .C or .Fortran is not
captured, so one needs a wrapper. To avoid that, the user would have to
declare that there is a value, specify its type, and supply an R variable
to hold the value. Presumably, all of th
If all else fails (and hopefully someone who knows more about fonts and
such can give you a better suggestion so you don't even have to try
this) then look at the last example for the subplot function in the
TeachingDemos package. This shows how you can insert images into a
plot, you could create
I just ran the example on a Win2000/P4 BLAS DLL system. It works fine on
2.4.1 beta (2006-12-10 r40146) as well as 2.5.0 Under development
(unstable) (2006-12-10 r40146).
I have had the same DLL file for a couple of years now (downloaded from the
Wisconsin CRAN if I remember correctly) but occasi
Hi all,
I would like to add phonetic symbols in my figures. Usually I typeset
my documents in LaTeX and I use the tipa [1] package to get
International Phonetic Alphabet (IPA) fonts. So, my problem would be
solved if I could insert LaTeX commands in the text() function (I
guess at least).
I would
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