For Linux users, meld is quite nice for side by side editing, though I've never
tried using it for
display. Just checking now suggests it isn't obvious how to "print" side by
side display.
I've made meld easier for my own use by creating an icon in Double Commander
(DC allows
the user to creat
It is probably important to note that the WRE with the new section on C API
compliance is
in the R-Devel docs, not the current ones.
JN
On 2024-06-25 12:10, luke-tierney--- via R-devel wrote:
On Tue, 25 Jun 2024, Josiah Parry wrote:
Hey folks,
I'm sure many of you all woke to the
hat states that the packages will be
removed
from CRAN with a very short timeline.
Is there a link you can provide regarding the "Moving into C compliance?" It
cannot be found at https://cran.r-project.org/doc/manuals/R-exts.html.
Given that there hasn't been a stable release with
t, getting the indicated result of 0 for (sum(vv1) - 1.0e0), with
non-zero on my
Ryzen 7 laptop.
JN
# FPExtendedTest.R J C Nash
loopsum <- function(vec){
n <- length(vec)
vsum<-0.0
for (i in 1:n) { vsum <- vsum + vec[i]}
vsum
}
small<-.Machine$double.eps/4 # 1/4 of the
build R with
--disable-long-double to get closer to the arm64 results if that is your worry.
Cheers,
Simon
On 04/02/2024 4:47 p.m., J C Nash wrote:
Slightly tangential: I had some woes with some vignettes in my
optimx and nlsr packages (actually in examples comparing to OTHER
packages) bec
och
On 04/02/2024 4:47 p.m., J C Nash wrote:
Slightly tangential: I had some woes with some vignettes in my
optimx and nlsr packages (actually in examples comparing to OTHER
packages) because the M? processors don't have 80 bit registers of
the old IEEE 754 arithmetic, so some existing "
Slightly tangential: I had some woes with some vignettes in my
optimx and nlsr packages (actually in examples comparing to OTHER
packages) because the M? processors don't have 80 bit registers of
the old IEEE 754 arithmetic, so some existing "tolerances" are too
small when looking to see if is sma
Slightly tangential, but about two decades ago I was researching
how multimedia databases might be reasonably structured. To have a
concrete test case, I built a database of English Country (Playford)
dances, which I called Playford's Progeny. (Ben B. will be aware of
this, too.) This proved rathe
t;- function(fun) function(...) do.call(fun,list(...))[[1]]
rosenbrock_all2 <- returnFirst(rosenbrock_all)
# benchmark all functions
set.seed <- 100
microbenchmark(env = optim(c(-1,2), rosenbrock_env, data = data),
env2 = optim(c(-1,2), rosenbrock_env2, data = dat
Better check your definitions of SVD -- there are several forms, but all I
am aware of (and I wrote a couple of the codes in the early 1970s for the SVD)
have positive singular values.
JN
On 2023-07-16 02:01, Durga Prasad G me14d059 wrote:
Respected Development Team,
This is Durga Prasad reac
Thanks Martin.
Following Duncan's advice as well as some textual input, I have put a proposed
Rd file for
optim on a fork of the R code at
https://github.com/nashjc/r/blob/master/src/library/stats/man/optim.Rd
This has the diffs given below from the github master. The suggested changes
primaril
A tangential email discussion with Simon U. has highlighted a long-standing
matter that some tools in the base R distribution are outdated, but that
so many examples and other tools may use them that they cannot be deprecated.
The examples that I am most familiar with concern optimization and non
I wrote first cut at unirootR for Martin M and he revised and put in
Rmpfr.
The following extends Ben's example, but adds the unirootR with trace
output.
c1 <- 4469.822
c2 <- 572.3413
f <- function(x) { c1/x - c2/(1-x) }; uniroot(f, c(1e-6, 1))
uniroot(f, c(1e-6, 1))
library(Rmp
ant by a
vector of ones, then the fitted values are of `length(y)`. Is this
something that should be reported?
``` r
dat <-
data.frame(y=c(80,251,304,482,401,141,242,221,304,243,544,669,638),
ones = rep(1, 13))
mNull1 <- nls(y ~ a, data=dat, start=c(a=mean(dat$y)))
model with just
a single parameter is length 1, but if I multiply that constant by a
vector of ones, then the fitted values are of `length(y)`. Is this
something that should be reported?
``` r
dat <-
data.frame(y=c(80,251,304,482,401,141,242,221,304,243,544,669,638),
ones = re
ncluded in
CRAN offering. Just remove the methods from the ameth and bmeth lists if
necessary.
Cheers, John Nash
# CErickson221223.R
# optim(c(0,0), function(x) {x[1]*1e-317}, lower=c(-1,-1), upper=c(1,1),
# method='L-BFGS-B')
tfun <- function(x, xpnt=317){
if ((length(x)) !
concept of
inference can be when applied to parameters in such models.
JN
On 2021-08-20 11:35 a.m., Martin Maechler wrote:
>>>>>> J C Nash
>>>>>> on Fri, 20 Aug 2021 11:06:25 -0400 writes:
>
> > In our work on a Google Summer of Code proje
nters some computational blockage AFTER it has already found a
much better "fit" i.e. set of parameters with smaller sum of squares.
Here is a version of the Tetra example:
time=c( 1, 2, 3, 4, 6 , 8, 10, 12, 16)
conc = c( 0.7, 1.2, 1.4, 1.4, 1.1, 0.8, 0.6, 0.5, 0.3)
NLSdata <
seem to be the "subset()" function of R.
John Nash
# CroucherSubset.R -- https://walkingrandomly.com/?p=5254
xdata = c(-2,-1.64,-1.33,-0.7,0,0.45,1.2,1.64,2.32,2.9)
ydata =
c(0.699369,0.700462,0.695354,1.03905,1.97389,2.41143,1.91091,0.919576,-0.730975,-1.42001)
Cform <- ydata ~ p1*
This message is to let R developers know that the project in the Subject is now
a Google Summer of Code project.
Our aim in this project is to find simplifications and corrections to the nls()
code, which has become heavily patched. Moreover, it has some deficiencies in
that
there is no Marquardt
One of the mechanisms by which R has been extended and improved has been through
the efforts of students and mentors in the Google Summer of Code initiatives.
This
year Toby Hocking (along with others) has continued to lead this effort.
This year, Google has changed the format somewhat so that th
Sorry, Martin, but I've NOT commented on this matter, unless someone has been
impersonating me.
Someone else?
JN
On 2021-01-11 4:51 a.m., Martin Maechler wrote:
>> Viechtbauer, Wolfgang (SP)
>> on Fri, 8 Jan 2021 13:50:14 + writes:
>
> > Instead of a separate file to sto
Is this a topic for Google Summer of Code? See
https://github.com/rstats-gsoc/gsoc2021/wiki
On 2021-01-09 12:34 p.m., Dirk Eddelbuettel wrote:
>
> The idea of 'white lists' to prevent known (and 'tolerated') issues, note,
> warnings, ... from needlessly reappearing is very powerful and general,
other non-default "type" of calculation, what Abby
offered may also apply.
-Original Message-
From: R-devel
mailto:r-devel-boun...@r-project.org>> On Behalf
Of Abby Spurdle
Sent: Monday, December 14, 2020 4:48 PM
To: Merkle, Edgar C. mailto:merk...@missouri.edu>>
Cc:
All,
Consider the code below
options(digits=2)
x <- 1:1000
quantile(x, .975)
The value returned is 975 (the 97.5th percentile), but the name has been
shortened to "98%" due to the digits option. Is this intended? I would have
expected the name to also be "97.5%" here. Alternatively, the return
t;>>> when you hover over the link, as most browsers do. So one could have
>>>>>
>>>>> \href{https://disney.org}{https://horrible.web.site}
>>>>>
>>>>> Duncan Murdoch
>>>>>
>>>>>
>>
Show how easily you get month, day, year, day (of {month, week, yr}), ... :
> ## (remember to count from 0 (!): mon = 0..11, wday = 0..6, etc !!)
>
> ##' Transform (Time-)Date vector to convenient data frame :
> dt2df <- function(dt, dName = deparse(substitute(dt)), stri
chler wrote:
>>>>>> J C Nash
>>>>>> on Thu, 26 Mar 2020 09:29:53 -0400 writes:
>
> > Given that a number of us are housebound, it might be a good time to
> try to
> > improve the approximation. It's not an area where I have muc
Any thoughts?
>
> Well, qbeta() is mostly based on inverting pbeta() and pbeta()
> has *several* "dangerous" corners in its parameter spaces
> {in some cases, it makes sense to look at the 4 different cases
> log.p = TRUE/FALSE // lower.tail = TRUE/FALSE separately ..}
>
The main thing is to post the "small reproducible example".
My (rather long term experience) can be written
if (exists("reproducible example") ) {
DeveloperFixHappens()
} else {
NULL
}
JN
On 2019-03-29 11:38 a.m., Saren Tasciyan wrote:
> Well, first I can't sign in bugzilla myse
th
> as for other character data.
>
> -pd
>
>> On 12 Mar 2019, at 21:39 , Mychaleckyj, Josyf C (jcm6t)
>> wrote:
>>
>> Reporting a possible inconsistency or bug in handling stringsAsFactors in
>> as.data.frame.table()
>>
>> Here is a sim
Reporting a possible inconsistency or bug in handling stringsAsFactors in
as.data.frame.table()
Here is a simple test
> options()$stringsAsFactors
[1] TRUE
> x<-c("a","b","c","a","b")
> d<-as.data.frame(table(x))
>
Rereading my post below, I realize scope for misinterpretation. As I have said
earlier,
I recognize the workload in doing any streamlining, and also the immense
service to us
all by r-core. The issue is how to manage the workload efficiently while
maintaining
and modernizing the capability. That
by folk outside the core.
JN
On 2019-03-04 9:12 a.m., Avraham Adler wrote:
> On Mon, Mar 4, 2019 at 5:01 PM J C Nash <mailto:profjcn...@gmail.com>> wrote:
>
> As the original coder (in mid 1970s) of BFGS, CG and Nelder-Mead in
> optim(), I've
> been pu
As the original coder (in mid 1970s) of BFGS, CG and Nelder-Mead in optim(),
I've
been pushing for some time for their deprecation. They aren't "bad", but we have
better tools, and they are in CRAN packages. Similarly, I believe other
optimization
tools in the core (optim::L-BFGS-B, nlm, nlminb)
the trace/verbose arguments for the various root finders
> and optimizers and instead use the trace
> function or otherwise modify the function handed to the operator. You can
> print or plot the arguments or save them. E.g.,
>
>> trace(ff, print=FALSE, quote(cat("x=&qu
In https://cran.r-project.org/bin/linux/ubuntu/
Administration and Maintances of R Packages
^^
Minor stuff, but if someone who can edit is on the page,
perhaps it can be changed to "Maintenance"
Best, JN
__
R-devel@r-project
In looking at rootfinding for the histoRicalg project (see
gitlab.com/nashjc/histoRicalg),
I thought I would check how uniroot() solves some problems. The following short
example
ff <- function(x){ exp(0.5*x) - 2 }
ff(2)
ff(1)
uniroot(ff, 0, 10)
uniroot(ff, c(0, 10), trace=1)
uniroot(ff,
cument and transfer knowledge of some older algorithms
used by R and by other computational systems. These older codes
are mainly in Fortran, but some are in C, with the original implementations
possibly in other programming languages. My efforts
were prompted by finding some apparent bugs in codes, w
Having worked with optim() and related programs for years, it surprised me
that I haven't noticed this before, but optim() is inconsistent in how it
deals with bounds constraints specified at infinity. Here's an example:
# optim-glitch-Ex.R
x0<-c(1,2,3,4)
fnt <- function(x,
On Fri, 16 Jun 2017, Dario Strbenac wrote:
Good day,
It's not described anywhere in the help page, but tapply and by
functions will, by default, convert factors into numeric values. Perhaps
this needs to be documented or the behaviour changed.
It *is* described in the help page.
This re
On Mon, 27 Mar 2017, Rolf Turner wrote:
From time to time I get myself into a state of bewilderment when using
apply() by calling it with FUN equal to a function which has an "optional"
argument named "X".
E.g.
xxx <- lapply(y,function(x,X){cos(x*X)},X=2*pi)
which produces the error mes
On Thu, 10 Dec 2015, Konrad Rudolph wrote:
I’ve got the following scenario: I need to store information about an
R function, and retrieve it at a later point. In other programming
languages I’d implement this using a dictionary with the functions as
keys. In R, I’d usually use `attr(f, 'some-nam
When running the "make check"
14736 14735 0 09:03 pts/100:00:00 /bin/sh -c echo
"tools::testInstalledPackages(scope='base', types='examples', srcdir=\".\",
commentDonttest=!FALSE)" | LANGUAGE=
14738 14736 0 09:03 pts/100:00:03 /hom
day, October 17, 2015 5:44 PM
To: McCully, Dwayne (NIH/NIAMS) [C]
Cc: r-devel@r-project.org
Subject: Re: [Rd] R 3.2.2 - make check and install package hang
On Sat, Oct 17, 2015 at 9:04 PM, McCully, Dwayne (NIH/NIAMS) [C]
wrote:
> Hello Everyone,
>
> After trying several ways to compile R 3
-fpic -g -O2 -c conftest.c -o conftest.o
gcc -std=gnu99 -shared -L/home/dmccully/R-3.2.2/lib -L/usr/local/lib64 -o
conftest.so conftest.o
-L/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.85.x86_64/jre/lib/amd64/server -ljvm
-L/home/dmccully/R-3.2.2/lib -lR
make[2]: Leaving directory `/tmp/Rjavareconf.l
efully, you'll notice it says
> "Rf_initialize_R" - which is quite critical in this matter.
>
> Cheers,
> Simon
>
>
> On Aug 24, 2015, at 9:18 AM, Ryan C Metzger wrote:
>
>> I did some poking around with GDB and confirmed that the advice of
>> setti
t main.c:861
#4 0x2b14a98b in Rf_initEmbeddedR (argc=, argv=) at Rembedded.c:63
On Thu, Aug 20, 2015 at 1:21 PM, Ryan C Metzger wrote:
> So I'm working on a custom front end to R, in one mode of the front
> end I dynamically load libR.so into a child worker thread. I'm ve
e checking inside of R and I get innumerable errors along
the lines of
Error: C stack usage 140732526462740 is too close to the limit
Digging through this email list (and I also found similar things out
on google) I found the following advice from 2009
---
On Thu, 9 Jul 2015, Therneau, Terry M., Ph.D. wrote:
I have a local library 'dart' that imports "httr".
[snip `R CMD build' can't find dart]
Any ideas? There is no mention in the Writing R Extentions manual that it
ignores the
Rprofile file.
Terry,
From WRE:
1.3 Checking and buildi
anged his logic in the survival package to avoid this
issue but he requires generating a larger design matrix then dropping
columns.
A simple example is below.
strat <- function(x) x
d <- expand.grid(a=c('a1','a2'), b=c('b1','b2'))
d$y <- c(1,3
a bug, but it is
asking for trouble.
JN
On 15-04-25 07:57 AM, peter dalgaard wrote:
>
>> On 25 Apr 2015, at 13:11 , Prof J C Nash (U30A) wrote:
>>
>> Hendrik pointed out it was the parentheses that gave the complaint.
>> Single quotes and no parentheses seem to satisfy R
.
Is this something CRAN should be thinking about? I would argue greater
benefit to users than title case.
JN
On 15-04-24 06:17 PM, Uwe Ligges wrote:
>
>
> On 24.04.2015 22:44, Ben Bolker wrote:
>> Prof J C Nash (U30A uottawa.ca> writes:
>>
>>>
>>> I
I was preparing a fix for a minor glitch in my optimx package and R CMD
check gave an error that the title was not in title case. It is
A Replacement and Extension of the optim() Function
R CMD check suggests the incorrect form
A Replacement and Extension of the Optim() Function
'Writing R Exte
nls() is using
1) only a Gauss-Newton code which is prone to some glitches
2) approximate derivatives
Package nlmrt uses symbolic derivatives for expressions (you have to
provide Jacobian code for R functions) and an aggressive Marquardt
method to try to reduce the sum of squares. It does return m
gt;>> sessionInfo()
>> R version 3.1.3 (2015-03-09)
>> Platform: x86_64-pc-linux-gnu (64-bit)
>> Running under: Ubuntu 14.04.2 LTS
>>
>> locale:
>> [1] LC_CTYPE=en_CA.UTF-8 LC_NUMERIC=C
>> [3] LC_TIME=en_CA.UTF-8LC_COLLATE=en_CA.UTF
Are other developers finding R 3.1.3 problematic because vignette
building requires pandoc 1.12.3, while Linux Mint 17 / Ubuntu 14.04 have
1.12.2.1? R 3.1.2 seems to work fine.
I'd very much like to avoid having to build as large a Linux package as
pandoc, which has given me issues outside of R (i
ink I need to do some more digging to
narrow down where this issue is lurking. It may be some local matter, as
with the r-recommended links failing.
Best, JN
On 15-01-18 09:27 AM, Kurt Hornik wrote:
Prof J C Nash (U30A) writes:
I've been implementing a wrapper to the 2011 Fortran ve
I've been implementing a wrapper to the 2011 Fortran version of
L-BFGS-B. In optim(), R uses a C translation of a Fortran version (the
version number does not appear to be documented by the original
authors). The authors of the original Fortran code have updated it and
published the reaso
With reference to the issue first reported by Henrik Bengtsson (see
https://stat.ethz.ch/pipermail/r-devel/2014-January/068184.html), I would
like to report that I am experiencing the very same problem when building R
3.1.2 on Windows platform. Fortunately, the same workaround devised by
Henrik wor
improvements
in the method.
JN
On 14-10-22 06:00 AM, r-devel-requ...@r-project.org wrote:
> Date: Tue, 21 Oct 2014 20:14:03 +0800 (CST)
> From: ?? <2012111...@njau.edu.cn>
> To: R-devel@r-project.org
> Subject: [Rd] How can I use R-function in My C++ project ?
>
I won't comment on the C/C++ option, as I'm not expert in that. However,
R users and developers should know that Nocedal et al. who developed
L-BFGS-B released an update to correct a fault in 2011. It was important
enough that an ACM TOMS article was used for the announcement.
As you dig deeper you will find vmmin.c, cgmin.c and (I think) nmmin.c
etc. Those were, as I understand, converted by p2c from my Pascal codes
that you can find in the pascal library on netlib.org. These can be run
with the Free Pascal compiler.
Given how long ago these were developed (>30 years i
I noted Duncan's comment that an answer had been provided, and went to
the archives to find his earlier comment, which I am fairly sure I saw a
day or two ago. However, neither May nor June archives show Duncan in
the thread except for the msg below (edited for space). Possibly tech
failures are ca
Over the years, this has been useful to me (not just in R) for many
nonlinear optimization tasks. The alternatives often clutter the screen.
> On 13-11-06 06:00 AM, r-devel-requ...@r-project.org wrote:
> People do sometimes use this pattern for displaying progress (e.g. iteration
> counts).
>>
Thanks. I should not try adjusting code after some hours of proofreading.
Making that change gave a suitable time difference.
Best, JN
On 13-11-03 03:46 PM, Henrik Bengtsson wrote:
> tfor <- cmpfun(tfor)
> twhile <- cmpfun(twhile)
>
> /Henrik
>
>
> On Sun, Nov 3,
ooted
that partition for quite a while.
Here is the for-while test code:
# forwhiletime.R
library(microbenchmark)
require(compiler)
tfor <- function(n){
for (i in 1:n) {
xx<-exp(sin(cos(as.double(i
}
xx
}
twhile <- function(n){
i<-0
while (i On 13-11-03
I had a bunch of examples of byte code compiles in something I was
writing. Changed to 3.0.2 and the advantage of compiler disappears. I've
looked in the NEWS file but do not see anything that suggests that the
compile is now built-in. Possibly I've just happened on a bunch of
examples where it doe
This issue has been known for some time and I've had "why don't you fix
this?" queries. However, I'm not one of the R-core folk who could do so,
and don't code in C. Moreover, as far as I can tell, the version of
L-BFGS-B in R is not one of the standard releases
There is quite a literature on related methods for variance. If anyone
is interested, I did some work (and even published the code in the
magazine Interface Age in 1981) on some of these. I could probably put
together scans of relevant materials, some of which are not easily
available. It would
While as a Linux user who has not so far been banished to Winland I have
not experienced this problem, it seems to be the type of issue where a
"how to", for example, on the R Wiki, would be helpful. Moreover, surely
this is a name conflict on different platforms, so possibly a list of
these
The message below came to me from the Getting Open Source Logic INto
Government list. I'm passing it on to the devel list as the infoworld
article may have some ideas of relevance to the R project, mainly
concerning build and test issues and tracking changes in the code base.
While the LibreOff
For info, I put a little study I did about the byte code compiler and
other speedup approaches (but not multicore) on the Rwiki at
http://rwiki.sciviews.org/doku.php?id=tips:rqcasestudy
which looks at a specific problem, so may not be relevant to everyone.
However, one of my reasons for doing i
If CRAN were a passive repository, the discussion about its policies
would not be relevant to this list e.g., SourceForge. However, the
development of R and its packages are very intimately connected to the
CRAN repository policy.
I doubt any of the players in building our current R ecosystem
I'll not be able to comment on the use of C like this, but will warn that I
wrote the
routines that became Nelder-Mead, CG, and BFGS in optim() in the mid 1970s. CG
never did
as well as I would like, but the other two routines turned out pretty well.
However, in
nearly 40 years, there are
In the past 6 months I've been struggling with an issue that has been raised
periodically
on the lists. This is the need to share information across a group of
functions, possibly
from different packages. So far I've found solutions that are either quite
clumsy or else
don't work as have (likely
ing.
John Nash
# - code block ---
rm(list=ls()) # clear workspace
Form2resfun <- function(f, p ) {
cat("In Form2resfun\n")
xx <- all.vars(f)
fp <- match(names(p), xx) # Problem in matching the names of params
xx2 <- c(xx[fp], xx[-fp]
orderings on sums of large numbers of items.
JN
On 12/14/2011 03:58 PM, Uwe Ligges wrote:
>
>
> On 14.12.2011 17:19, peter dalgaard wrote:
>>
>> On Dec 14, 2011, at 16:19 , John C Nash wrote:
>>
>>>
>>> Following this thread, I wondered why nobody
Best,
John Nash
Here's the system info and small script.
>> sessionInfo()
> R version 2.14.0 (2011-10-31)
> Platform: x86_64-pc-linux-gnu (64-bit)
>
> locale:
> [1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C
> [3] LC_TIME=en_US.utf8LC_COLLA
start<-rep(3,6)
lo<-rep(2,6)
up<-rep(4,6)
flb <- function(x)
{ p <- length(x); sum(c(1, rep(4, p-1)) * (x - c(1, x[-p])^2)^2) }
ans<-optim(start, flb, lower=lo, upper=up)
ans
ans<-optim(start, flb, lower<-lo, upper=up)
ans
ans1<-optim(start, flb, lower<-lo, upper=up
I think the poster is interested in being able to try the build/check on a Mac
in the
fashion that Winbuilder does. That is, rather than have CRAN do all the
platform checks,
is there a way to submit a package to be tested for just one platform?
It may be useful to have such a facility so packag
Thanks for quick reply.
To help others I'll put in short comments in edited thread.
On 11/02/2011 03:54 PM, Prof Brian Ripley wrote:
> On Wed, 2 Nov 2011, John C Nash wrote:
>
>> In re-factoring my optimx package, I'm finding that the pdf output has some
>> l
In re-factoring my optimx package, I'm finding that the pdf output has some
lines that are
outside the margins (and there are warnings in R CMD check optimx). Clearly I
can fix this
by editing the tex file that is generated, but the build infrastructure would
still get
things wrong in automatic
ce to know which operations
and special
functions do so.
rm(list=ls())
m<-matrix(1:4,nrow=2, ncol=2)
print(m)
attributes(m)
attr(m,"check")<-"***"
attributes(m)
bigm<-10*m
str(bigm)
bigm1<-diag(c(1,1))%*%m
str(bigm1)
bigm1<-c(1,2)*m
str(bigm1)
print(bigm1
This is mainly a reminder to others developing R packages to be careful not to
supply
control list items that are not used by the called package. Optimx is a wrapper
package
that aims to provide a common syntax to a number of existing optimization
packages.
Recently in extending optimx package I
pare problems like this for
efficient and
effective solution. The code for nlogL was the "original" from the worker who
supplied the
problem.
Best,
John Nash
--
cat("mineral-timing.R == benchmark M
> From: Mohit Dayal
> To: R-devel@r-project.org
> Subject: [Rd] AS Algorithms
>
> I would like to use one of the AS Algorithms that used to be published in
> the journal Applied Statistics of the Royal Statistical Society (Series C).
> FORTRAN code based on these
In building a function for a package, I'd like to set the defaults in a control
list,
e.g.,
makeg<-function(parameters, eps = 1.0e-7, control=list(showwork=TRUE,
rubbish=1.0e+101)){
etc.
}
This does not provide showwork or rubbish within the function if control() is
not fully
specified.
Thank you very much. I learned a lot.
Regards,
Xin
-Original Message-
From: Simon Urbanek [mailto:simon.urba...@r-project.org]
Sent: Thursday, April 07, 2011 5:42 PM
To: Zheng, Xin (NIH) [C]
Cc: r-devel@r-project.org
Subject: Re: [Rd] anyway to get R unevaluated expr independent on
Hi there,
Suppose the cmd is "a<-3", I can parse the cmd sexp with R_ParseVector and eval
it. My question is - is it possible to parse a cmd like "a <- ?", afterwards
evaluation will give corresponding result depend on different argument? In
other words, '?' is just a placeholder.
Thanks.
Xin
H C Pumphrey wrote:
H C Pumphrey wrote:
I'm trying to fix a subtle bug in the hdf5 package. This package
provides an interfaces to the HDF5 library and hence allows one to
load data into R from files in the HDF5 format. The bug appeared
during a period in which R changed but the packag
H C Pumphrey wrote:
I'm trying to fix a subtle bug in the hdf5 package. This package
provides an interfaces to the HDF5 library and hence allows one to load
data into R from files in the HDF5 format. The bug appeared during a
period in which R changed but the package did not. [details sn
h the R and C code, stripped of everything except what is
needed to show the bug. What is supposed to happen is
(*) the user calls R function hdf5load()
(*) hdf5load() calls C function do_hdf5load()
(*) do_hdf5load() opens the HDF5 file recording its HDF5 file id (fid)
(*) do_hdf5load() ca
I tend to code with return(), at least in development, because I've once
stepped in the
cowpad of
ans<- list()
then attr(ans )
and forgot to do another
ans
so got only part of what I wanted. Perhaps its just my thinking style, but I
agree with
some others who suggest that it
In my reminder that GSoC project proposals are requested (to R wiki developers'
projects
page for GSoC 2011), I mentioned that Dirk Eddelbuettel had acted as leader for
the R
Foundation activity on GSoC prior to handing the torch to Claudia Beleites and
I for this
year. I should have mentioned t
The 2011 Google Summer of Code will soon be open for organizations to submit
potential
projects for which students may apply (with detailed plans) for funding. We
have some
proposals in process at
http://rwiki.sciviews.org/doku.php?id=developers:projects:gsoc2011
Note that projects do need to h
No, this is not about Rcpp, but a comment in that overly long discussion raised
a question
that has been in my mind for a while.
This is that one may have work that is used in R in the base functionality and
there are
improvements that should be incorporated.
For me, this concerns the BFGS, Nel
)
$exportMethods
character(0)
$exportClassPatterns
character(0)
$dynlibs
character(0)
$nativeRoutines
list()
$S3methods
[,1] [,2] [,3]
So, it picked up 'export' and ignored the other two lines.
Chuck
p.s.
sessionInfo()
R version 2.12.0 (2010-10-15)
Platform: i386-appl
On Thu, 25 Nov 2010, Charles C. Berry wrote:
On Thu, 25 Nov 2010, Michael Friendly wrote:
kronecker, with make.dimnames=TRUE uses a hardwired sep=":" in the line
tmp <- outer(dnx[[i]], dny[[i]], FUN = "paste", sep = ":")
For an application in w
rku DOT ca
Professor, Psychology Dept.
York University Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele StreetWeb: http://www.datavis.ca
Toronto, ONT M3J 1P3 CANADA
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