be a difference in the attributes (e.g. rownames of the
dataframe, or names of one of the columns).
One thing that might turn up the difference is to use dump() to write
out the objects to a file, and use some text-based compare on those files.
Duncan Murdoch
to rewrite it
as +(a,b), but think of the benefits!
You+can+write+out+long+sentences+and+use+them+as+variable+names!
Duncan Murdoch
And the double benefit is that it leaves case available for
other good uses, such as indicating an object's scope:
local.var
Class.Data
GLOBAL.SETTING
--Todd
be slow. If this is really a crucial bottleneck to your
calculation, I'd suggest skipping over that optimization and redoing the
function in C or Fortran.
Duncan Murdoch
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have access, but your own system might.
Duncan Murdoch
Thank you
Lisa Wang Msc.
Princess Margaret Hospital
Toronto , Canada
tel: (416) 946 4501 ext.5201
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, or he did. I'm guessing
you didn't run library() to load the package.
Generally when a contributed package doesn't work, you should ask the
maintainer for help.
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or
(b) Replace just the last line above with
if (is.na(tcn5[n,i]) | tcn5[n,i] == -9) tcn5[n,i] - NA
I'd choose (a); it's a lot cleaner and will run faster.
Duncan Murdoch
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Federico Calboli wrote:
Hi everyone,
I have a question on parsing speed.
I have two functions:
F1
F2
As things are now, F2 calls F1 internally:
F2 = function(x){
if (something == 1){
y = F1(x)
}
if (something ==2){
do whatever
}
}
*Assuming there could be some difference*, is is faster to use the
]] - tkcheckbutton(tt).
I'd also recommend using cbs - list() instead of cbs - c() because I
find it represents your intentions more clearly, but both work.
Duncan Murdoch
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) Bandwidth Selection by Pilot Estimation of
Derivatives
D(stats)Symbolic and Algorithmic Derivatives of Simple
Expressions
numericDeriv(stats) Evaluate derivatives numerically
How could that be better?
Duncan Murdoch
get numerical approximations to the density at any point using
integrate() (or sum(), if a discrete distribution is involved).
Duncan Murdoch
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PLEASE do read
chooseCRANmirror() first, if it hasn't already been called.)
The source to base packages is in the R source, also on CRAN.
Duncan Murdoch
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in Windows, not sure about other platforms), so
I'd say this would be a good thing to do. I don't know your revision
history on the components, but I'd guess some change more often than
others, so there'll be no need to update all of them every time one of
them changes.
Duncan Murdoch
problem where I didn't already know
the answer?
Duncan Murdoch
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times 36 or about nearly half a Gig for each copy. Presumably the code
is storing more than one or two copies of the data.
Why don't you use fetch() to get your records in more manageable chunks?
Duncan Murdoch
## my code
library(RMySQL)
drv - dbDriver(MySQL)
ch - dbConnect(drv,dbname=testdb
language, the parser is going to complain about it. The only solution
here would be to parse the whole thing yourself (i.e. parse the R
source), rather than using the R parser.
Duncan Murdoch
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? I think not, given the more modest
gains that I see. Does he go down till a byte? A four-byte word
instead of 8-bytes of storage?
What are Ncells and Vcells, and what determines his consumption of
memory for each kind?
See the man pages ?gc, ?Memory, and the source code.
Duncan Murdoch
as though you need to configure a proxy for Internet access.
See the discussion in the R for Windows FAQ (which gives other
possibilities too).
Duncan Murdoch
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PLEASE do
the search list to a default.
It executes startup code from various places.
BTW, I'm not sure what you mean when you say that gc() may return from
R to operating system.
Duncan Murdoch
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by Duncan Murdoch frequently. Of
course, you can get the sources at arbitrary time and compile yourself
hourly, if you prefer. ;-)
At present, frequently = daily is the target, but occasionally I miss
the target for various reasons, such as a build error or something wrong
with my job
Khabie-Zeitoune, David wrote:
Hi
Is there a way to programmatically tell whether R is running in batch or
GUI mode?
?interactive
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,
0}},
which tells you that the do_optim routine handles this stuff. Further
searches would show you that this function is defined in src/main/optim.c.
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what you want to get, but it might be
cat( sub(_, _, g_g) ); cat(\n)
g\_g
The extra escapes are necessary because you need to send \\ to sub so
that it outputs a \.
Duncan Murdoch
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on the search path). This might
not be perfect, since you can use attach() to modify the search path,
but it would likely be good enough to flush out simple programming bugs.
Duncan Murdoch
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- as.matrix(as.data.frame(lapply(myData,as.numeric)))
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... and is as up-to-date as possible.
Can anyone suggest any book or other reference apart from the green
book and the VR S-programming?
I think you've already got the best references.
Duncan Murdoch
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and
padding, but is sometimes a little obscure in how it does them.
Duncan Murdoch
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-project.org/bin/windows/base/rdevel.html. I do not
think the beta manuals are online anywhere separate from the full release.
Duncan Murdoch
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alternative is the easiest. I think this only affects
you if you are building vignettes.)
I'm no longer sure they intend to fix it. Since I wrote those
instructions, they came out with a new release that breaks one of the
workarounds.
Duncan Murdoch
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without the temporary file.
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with colors much more convenient). Why isn't this system
independent now?
Presumably because nobody thought it was important enough to make it so.
R isn't a low level system programming language, so why should it
treat hex specially?
Duncan Murdoch
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floating point operations R uses double precision, which
gives about 18-19 significant digit precision. Leading zeros don't count.
Duncan Murdoch
Thanks
Josef Eschgfäller
Ferrara
---
Vol = function (m)
{if (m=1) 1
else Vol(m-2)*pi/(m+m)}
for (m in 1:40)
{x
Duncan Murdoch wrote:
For most floating point operations R uses double precision, which
gives about 18-19 significant digit precision. Leading zeros don't
count.
Oops, Jan Kim is right: double precision is only 15-16 digit
precision. Sorry.
Duncan Murdoch
. The package was
called WiSP. I don't see it on CRAN, but you can read the abstract
here:
http://www.math.usu.edu/~iface03/abstracts/03049.html
Duncan Murdoch
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PLEASE do
(), and look at search engine
and keywords.
help.search() also has a keyword argument, but you need to know the
keywords to know what to look for. ?help.search shows you how to find
them.
Duncan Murdoch
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On Thu, 31 Mar 2005 22:22:32 -0500, Mario Morales
[EMAIL PROTECTED] wrote :
Is there a R function for sort a data frame by a variable ?
I know sort a vector, but I don't know sort a data frame by a
column. Can you help me ?
the sort() function don't work with data frame.
This is a FAQ, but
]
n1 - colnames(dat)[2*i - 1]
n2 - colnames(dat)[2*i]
plot(c1+c2, c1-c2, main=paste(Pair, i,:,n1, n2))
}
Duncan Murdoch
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() comes close to what you want. For example,
opts - list(cex=2, lty=3, type='b')
do.call(plot, c(list(1:10, rnorm(10)), opts))
This messes up some of the tricks plot() uses to set default axis
labels, but otherwise it may be close to what you're after.
Duncan Murdoch
')
do.call(function(...) plot(1:10,rnorm(10),...), opts)
Duncan Murdoch
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On Tue, 15 Mar 2005 14:26:42 -0500, roger bos [EMAIL PROTECTED]
wrote :
I am trying to learn how to make a simple package that contains no C
or Fortran code. I used package.skeleton(...) to make a package
called test. The directory and files look good. I downloaded and
installed Rtools
cc'd).
By the way, I agree that code does look wrong, but it would also be
helpful to provide R code that gives obviously wrong answers because
of it.
Duncan Murdoch
ULONG MWC1019(void){
ULONG long t;
int i = endQ-1;
t = 147669672LL*Q[i] + Q[endQ];
Q[endQ
give me some information about it?
Others have pointed you to the source code for that function. You may
also want to call it directly: R exports some functions with C
interfaces (that should be callable from Fortran, too). See the R API
chapter in the Writing R Extensions manual.
Duncan
to add
stopifnot(all(c(b1, b2, b3) = 0))
to the beginning of the function rather than giving a bad answer for
bad input.
Duncan Murdoch
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PLEASE do read the posting
On Fri, 04 Feb 2005 14:45:35 +, Duncan Murdoch
[EMAIL PROTECTED] wrote :
On Fri, 4 Feb 2005 14:46:03 +0100, Martin Maechler
[EMAIL PROTECTED] wrote :
Duncan == Duncan Murdoch [EMAIL PROTECTED]
on Fri, 04 Feb 2005 09:50:22 + writes:
Duncan The miniR files only include
are the first
dimension, so you would use
apply(genes, 1, sd)
Duncan Murdoch
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mistake?
You aren't giving enough information for anyone to know that. You
need to tell us exactly what you did to create your package, and what
operating system you're on.
Duncan Murdoch
Maggie
[Previously saved workspace restored]
library(var)
Attaching package 'var
the
observations, just like the 95% confidence ellipse around
the bivariate normal random numbers.
I don't know a package that does that, but there probably is one.
Duncan Murdoch
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Duncan Murdoch
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, then you could call the Windows API function
MessageBeep from some C code, but I don't think we have a bell or
beep function in the standard R packages.
Duncan Murdoch
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PLEASE
On Mon, 7 Mar 2005 18:18:37 + (GMT), Prof Brian Ripley
[EMAIL PROTECTED] wrote :
On Mon, 7 Mar 2005, Duncan Murdoch wrote:
On Tue, 8 Mar 2005 00:31:07 +0800 (CST), Lu Joseph
[EMAIL PROTECTED] wrote :
Hello useRs,
Is there a way to write code in R
to ring a bell in Windows?
If you
in Unix.
Duncan Murdoch
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other linear filter.
e.g.
x - rnorm(1000)
y - filter(x, rep(1,20))
puts 20 element sums into y. The vector ends up the same length as x,
with NAs at the beginning and end (by default).
Duncan Murdoch
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. Suppose glm()
constrained the intercept to be positive, and you ended up fitting a
positive slope: then you would still get negative predictions for
sufficiently large negative values of the predictor variables.
Duncan Murdoch
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of the index you don't want).
This works for vectors i, so df[-sample(1:N, n), ] would delete
a random selection of n rows from N.
Duncan Murdoch
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PLEASE do read
the Writing R Extensions manual for
more details.
Duncan Murdoch
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On Wed, 23 Feb 2005 11:52:26 +0100, Ritter, Christian C
GSMCIL-GSTMS/2 [EMAIL PROTECTED] wrote :
Has anyone seen an official announcement to DSC-2005.
It's just been posted to R-devel; you can see it online at
http://tolstoy.newcastle.edu.au/R/devel/05/02/2326.html
Duncan Murdoch
version are you using? What are you doing. And of course:
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Duncan Murdoch
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PLEASE do read
announcement to request funding and
travel permission and flights from Europe to Seattle are starting to fill up,
so this is urgent).
For the benefit of others, here is the posting giving the time and
place. I don't think the official call for papers has come out yet.
Duncan Murdoch
From
installed, and give the command that
crashes it, but I would say there is definitely something wrong with
your system or your install, because it certainly doesn't crash for
most people.
Duncan Murdoch
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If this doesn't handle negatives the way you want, play around a bit
with abs().
Duncan Murdoch
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, or at least an incompatibility
with the latest version of R. You want to contact its authors.
Duncan Murdoch
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the top of my
head I can't think of any cases where R code that expects a complex
vector would fail if passed a real one, but it's certainly easy to
construct cases in external code.)
I think it's safer to make the conversion explicitly if you happen to
know that all(make.real) is true.
Duncan
of the number of
rows [5] in matrix
except that in this case you get a warning about the wrong length;
persp doesn't give you the warning. Maybe it should?
Duncan Murdoch
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your
$R_HOME/bin/helpprint.bat file so that it makes use of the TEXINPUTS
environment variable. You want the pdftex command to have something
like
-include-directory=%TEXINPUTS%
in it and then it will look in the right places for the includes.
Duncan Murdoch
To: Duncan Murdoch [EMAIL PROTECTED
, testable in
multiple versions of LaTeX.
Duncan Murdoch
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not usually what one wants.
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environment(fo)
NULL
It works for me too, so I'm not sure what problem Adrian was having.
Duncan Murdoch
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out what is going wrong with Cygwin, I'd be happy to
add a section of your findings.
Duncan Murdoch
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tested. Rather than building something that may not even work,
I'd like to stop building them.
Would this be a problem for anyone?
Duncan Murdoch
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PLEASE do read
On Fri, 4 Feb 2005 14:46:03 +0100, Martin Maechler
[EMAIL PROTECTED] wrote :
Duncan == Duncan Murdoch [EMAIL PROTECTED]
on Fri, 04 Feb 2005 09:50:22 + writes:
Duncan The miniR files only include a minimal installation
Duncan of R, and are rarely tested. Rather than building
of different combinations of [... but I couldn't make it.
a[a$V3 == O, ]
or
with(a, a[V3 == O, ])
which makes more sense when the selection expression is more
complicated, because you don't need the a$ prefix on every column.
Duncan Murdoch
P.S. your return address fails
and select stop.
You want to give both x and y coordinates to identify(), matching the
points you plotted, e.g.. change your example to
plot((our.frame2$c1),(our.frame2$c9)) # Produces desired plot
identify(our.frame2$c1, our.frame2$c9) # Give the same coords
Duncan Murdoch
in OS X, but does Windoze's advertized POSIX compliance mean anything here?
It doesn't compile with the standard MinGW installation, because the
sys/resource.h header file isn't found.
Duncan Murdoch
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]] - glsrun2$coefficient[2]
}
Hopefully this will let someone more familiar with nlme track it down.
Duncan Murdoch
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hist, it returns a list of things that are necessary to
reproduce the plot. Try printing it using print(hist( ... )), and you
should be able to see which component contains the numbers you want to
send to gnuplot.
Duncan Murdoch
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of the things on my to-do list is to port it to rgl. This
may happen in about a month.
Duncan Murdoch
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(1,2,4,3,2), legend.text = Legend)
par(oldpar) # restore the old colour
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the problem. There are
several ways to draw a bar chart; how to fix yours depends on which
one you used.
Duncan Murdoch
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information.
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to ask
Windows for new memory to store things in.
You could try deleting everything in your workspace before running the
2nd simulation; this should reduce the fragmentation. Or you could
run the big simulation first, then the smaller one will fit in the
holes left from it.
Duncan Murdoch
On Tue, 4 Jan 2005 11:31:27 -, michael watson \(IAH-C\)
[EMAIL PROTECTED] wrote:
As the title suggests, when building R packages on Windows, what is the
difference between:
R CMD build --binary mypack
And
R CMD INSTALL --build mypack
?? The former is suggested by my previous notes and
On Mon, 03 Jan 2005 10:50:22 +, Richard Dybowski
[EMAIL PROTECTED] wrote:
In S-Plus, I can look at the structure of a function (for example, hist)
simply by entering
hist RETURN
however, if I do this in R, I get the response
function (x, ...)
UseMethod(hist)
, not actually in Rgui.
Duncan Murdoch
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example, and it worked with no error. You'll need to show us how you
constructed mf before we can help with this.
Duncan Murdoch
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change what they've done.
For example, I set my path in F:/cygwin/etc/profile, but I may be the
only R user who uses that particular file...
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PLEASE do read
executable that provides the start command externally. It's trivial
to write (if you don't want all the bells and whistles of the internal
one).
Duncan Murdoch
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PLEASE do read
/kb/view.asp?articleid=Q100090
But we still have users using Win9x versions, which use a more
DOS-like method of setting the path. At some point we'll drop support
for them, but I don't want to do it sooner than necessary.
Duncan Murdoch
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of R (version 2.0.1 succeeds in getting VR now), or to build the
package from source (which requires a number of tools to be installed;
see R for Windows FAQ 3.1 Can I install packages into libraries in
this version? for details).
Duncan Murdoch
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main window at all. If you're using the MDI
interface, there's no option to make it appear un-maximized.
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result
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each other. One part
of the help is to tell beginners where the resources are that they
should learn from.
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to be a participant (in
general I dislike live online chat), but to each his own.
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?
Duncan Murdoch
On Sat, 27 Nov 2004 23:31:23 +0100, Heinz Tuechler [EMAIL PROTECTED]
wrote :
Dear Developers!
Using special characters I found a strange behaviour in R 2.0.1 and equally
in
R : Copyright 2004, The R Foundation for Statistical Computing
Version 2.0.1 (2004-11-15), ISBN 3-900051
part of FAQs or documentation did I miss to find the answer?
If you send a private email, please use a return address that works.
I got messages that [EMAIL PROTECTED] has been disabled when I tried to
respond there.
Duncan Murdoch
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I love that image: the little optimizer that couldn't.
I hope the fortunes maintainer is listening...
Duncan Murdoch
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PLEASE do read the posting guide! http://www.R
probably better off extracting the columns of the dataframe as
vectors, and working with those.
Duncan Murdoch
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I used pause() from library(DAAG) to pasue between plots. This works
when I source a script, but seems don't work when I run (ctrl + R) the
script in R.
This sounds like a bug to me, but I'm not sure it's going to be an
easy one to fix.
Duncan Murdoch
don't think it has any influence on this particular
effect.
That's a pretty serious bug in delay(). It's been there at least
since 1.9.1.
Duncan Murdoch
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PLEASE do read
On Fri, 26 Nov 2004 18:48:45 -0500, Duncan Murdoch
[EMAIL PROTECTED] wrote:
On 26 Nov 2004 12:27:35 +0100, Peter Dalgaard
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Having pu end up in the global environment looks like a bug in
delay() but I don't think it has any influence on this particular
effect.
That's
this?
parse() does the conversion to an expression, but doesn't evaluate it.
So you probably want
eval(parse(text = A == 1 B == 2))
but you may want to set the envir argument to eval, to tell R where to
go looking for A and B.
Duncan Murdoch
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(con, paste(SELECT * from USArrests where
row_names=',state,',sep=))
Error in sqliteExecStatement(con, statement) :
RS-DBI driver: (error in statement: near (: syntax error)
Duncan Murdoch
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