. I believe this is best done through lists, but
I am not sure.
I'd guess most people learn about functions from the Intro to R manual
rather than the function man page, but this is a good suggestion.
Duncan Murdoch
I find myself programming more and more in R, so I am beginning to see
myself.
Duncan Murdoch
I've used Tinn-R. Frankly it is quite creative. It solved the line-by-line
execution problem by copying the line and pasted it to R-console
automatically. But a lot of times clipboard generates error. And often times
the copy and paste within Tinn editor itself
to ask.
Using strsplit and strwidth you should be able to do it, but it will
probably look quite ugly.
Duncan Murdoch
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to make them.)
Duncan Murdoch
On 2/4/2006 5:19 PM, ivo welch wrote:
Thank you, Duncan. This led me to the info I needed. Here is a
simple utility function that does what I needed---maybe it will come
in helpful for others
the latest Subversion
checkout.
Duncan Murdoch
I tried and got the following error messages.
When I compiled my R as 64bit, I used the SUN ProW compilers.
However, gcc seems to being used below as well as missing some information.
Thank you in advance,
Dongseok
install.packages(rgl
good.
Duncan Murdoch
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(and you'll get an
error in 2.3.0). But why would you want to do that? What are you
trying to achieve?
Duncan Murdoch
Later on I called that myfun and got an error message because the
function index() in the zoo package was called inside myfun and was
not visible:
Error in myfun(args
Tierney in one of R News 3/1 that explains
the search order when namespaces are involved.
Duncan Murdoch
FS
On 2/2/06, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 2/2/2006 10:56 AM, Fernando Saldanha wrote:
I declared the environment of the function myfun to be NULL as follows:
environment
matrix; it may not be obvious that this is allowed, but it is.)
Duncan Murdoch
On 2/2/06, Ben Bolker [EMAIL PROTECTED] wrote:
Duncan Murdoch murdoch at stats.uwo.ca writes:
On 2/2/2006 3:39 AM, Michael wrote:
Hi all,
How do I visualize a contour of a tri-variate normal distribution?
I
object system, which
predates namespaces by a long time, but it's been a while since I've
thought about this.)
Duncan Murdoch
Of course, one can simulate anything with a Turing machine,
but I consider Fernando's criticisms somewhat unfair because he is
expecting R to behave like something he
is used in lists. You can avoid the
parent problem in R 2.2.x+ by setting the parent explicitly to emptyenv().
Duncan Murdoch
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arithmetic. I can't remember the name of it right
now, but Google should be able to find it for you...
Duncan Murdoch
Thank you, any help would be greatly appreciated.
Ionut Florescu
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it. But that's not the cause of the crash.
Duncan Murdoch
This checks if element x is a generator of the group Z_p. If you try
this function for p = 41 and x various increasing values eventually it
will crash R. That is what I meant by random, at first I started x=2,3
so on, when I got to 8, R
read.table call.
Duncan Murdoch
thanks.
--- Duncan Murdoch [EMAIL PROTECTED] wrote:
On 1/29/2006 10:26 AM, oliver wee wrote:
hello, I have just started using R for doing a
project
in time series...
unfortunately, I am having trouble using the
read.table function for use in reading my
don't get a response this time, you
should describe what you want in basic terms, and/or point to examples
of it on the web.
Duncan Murdoch
Can anyone offer any pointers at all?
Laura Quinn
Institute of Atmospheric Science
School of Earth and Environment
University of Leeds
Leeds
LS2
something like
bg3d(white)
surface3d(x,y,z*6,col=green)
which gives a surface like the one above, but you can rotate it using
the mouse.
Duncan Murdoch
Laura Quinn
Institute of Atmospheric Science
School of Earth and Environment
University of Leeds
Leeds
LS2 9JT
tel: +44 113 343 1596
fax
in the workspace:
a - 1:10
ifelse(exists(b), b, a)
[1] 1
if (exists(b)) b else a
[1] 1 2 3 4 5 6 7 8 9 10
Duncan Murdoch
Gabor
On Fri, Jan 27, 2006 at 04:38:39AM -0800, Mikkel Grum wrote:
Is there any function in R like
is.not.found(x, y)
meaning if you can't find
On 1/27/2006 9:07 PM, Manuel Morales wrote:
On Thu, 2006-01-26 at 21:55 -0500, Duncan Murdoch wrote:
On 1/26/2006 9:45 PM, Manuel Morales wrote:
Dear list members,
I'm looking for a way to write nested functions similar to the
function Nest or NestList in Mathematica.
E.g.,
f-function(x
times with 2 as the initial value.
It's easy enough using a for loop:
nest - function(f, initial, reps) {
result - initial
for (i in seq(len=reps)) result - f(result)
result
}
Duncan Murdoch
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for the language. :-)
Duncan Murdoch
This seems to be an endless source of confusion to anyone who didn't
start their programming days in Fortran, C, or assembly language (or
other strongly-typed language, I guess).
Barry
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If your columns are all numeric, you won't get the warning I got.
Duncan Murdoch
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you think it tried to update those, but failed
because of problems with the mirror?
Duncan Murdoch
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30514
airmiles isn't a function, it's a dataset, and it is located in
src/library/datasets/data/airmiles.R.
I hope this helps.
Duncan Murdoch
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PLEASE do read
On 1/14/2006 2:39 AM, Henrik Bengtsson wrote:
Duncan Murdoch wrote:
On 1/13/2006 2:04 AM, Ales Ziberna wrote:
Hello!
[snip]
(I'm a little sensitive about dependencies now, since the LaTeX seminar
template I've used a few times no longer works. It depends on too many
LaTeX packages
On 1/14/2006 4:48 PM, Shaozhong Zhao wrote:
Dear all R users£¬
Can I call a R function from within C/C++ directly? I mean don't run R.
Thank you!
Yes. See the R Extensions manual, in particular chapter 7, Linking
GUIs and other front ends to R.
Duncan Murdoch
in them. Seems like I'll be forced to use Powerpoint or Impress.)
Duncan Murdoch
What about regarding code that was sent to the list, usually as a response
to one of my problems. I assume that in this case it is best to consult the
author?
Any comments and opinions are very welcomed
, either as
someone who wanted the answer, or someone who wanted to provide it.
Duncan Murdoch
Frank E Harrell Jr wrote:
I feel that as long as people continue to provide help on r-help wikis
will not be successful. I think we need to move to a central wiki or
discussion board and to move
),add=T)
Duncan Murdoch
Is this possible?
I would be grateful for any hints.
Thanks,
Martin
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to be prepared for changes in the organization of the
documentation with new R releases (and changes in function names, and
changes in the examples...).
Duncan Murdoch
In principle, another possibility is to do something like the PHP
manual at http://www.php.net/manual/en/, which is not a wiki but
more
directories as strings if you need them. See
also ?basename .
Brian Ripley added a function choose.dir() to R-devel, which will give
you access to the code in the File|Change dir... menu item in R code.
Won't be out for a few more months, though.
Duncan Murdoch
this directory would be appreciated.
What name did you end up with? I don't have any problem removing the
directory test just by right-clicking and choosing Delete. You can
also open a command window, and put the name in quotes, e.g.
rmdir test
I do see the problem in unlink().
Duncan
, rather than going through integer indexing the way you
(used to?) have to do in S-PLUS.
Did I mention that messing with the environment of your caller is a bad
idea? It's not yours, don't touch it.
Duncan Murdoch
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testdir
worked.
Duncan Murdoch
Mike
- Original Message -
From: Prof Brian Ripley [EMAIL PROTECTED]
To: Duncan Murdoch [EMAIL PROTECTED]
Cc: Mike White [EMAIL PROTECTED]; R-help@stat.math.ethz.ch
Sent: Wednesday, January 04, 2006 1:49 PM
Subject: Re: [R] Unlink a directory
On 1/4/2006 10:32 AM, Ales Ziberna wrote:
Thank you both (Duncan Murdoch and Gabor Grotehendieck) for your answers.
Both work and my problem is solved.
I do aggree with Duncan Murdoch that usually messing with the environment of
your caller is a bad idea. The reason why I still want to do
to use it including s(), and
do something like the lexical scoping solution below.
Duncan Murdoch
Ales Ziberna
-Original Message-
From: Duncan Murdoch [mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 04, 2006 5:05 PM
To: Ales Ziberna
Cc: 'R-help'
Subject: Re: [R] Putting
(x,y) does a nice job. See ?dotchart for a lot of optional
arguments to change the look of it.
Duncan Murdoch
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plot functions, so the axes are harder to draw.
Duncan Murdoch
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, OSX).
Duncan Murdoch
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4 2 7
2 4 6
1 5 4
3 8 5
How do I do this? This is not a standard ascending or descending sort.
I think M[V,] is all you need.
Duncan Murdoch
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the output HTML would
need to be mirrored. Care to put together such a thing, and import all
the existing pages into it?
Duncan Murdoch
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used)
You can check out from
https://svn.r-project.org/R-project-web/branches/DJM/ a version I
started to put together using this approach. It isn't hard to edit, but
it did place unacceptable requirements on the server.
Duncan Murdoch
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like this is to simulate the loop by hand: write down
what is in each of the variables, and walk through the loop.
I suspect your problem is in initializing count improperly, or in
putting the test in the wrong place.
Duncan Murdoch
as a result qw is
[1] 0.9643836 1.000 2.000
On 12/29/2005 5:33 PM, Sean Davis wrote:
On 12/29/05 5:19 PM, Martin Lam [EMAIL PROTECTED] wrote:
Hi,
I have a problem when I want to add new points (or a
new line) to the graph. Some points (or parts of the
line) are not shown on the graph because they lie
beyond the scale of the axis.
need an
incomplete gamma function, such as pgamma. Be careful to get the
constant multiplier right.
Duncan Murdoch
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got things exactly identical.
The Writing R Extensions manual tells how to call the R generators from
other programs. You can do it without going through interpreted R code,
so there shouldn't be much in the way of a performance penalty.
Duncan Murdoch
machines. The Windows ODBC driver is named
psqlodbc-08_00_0101.zip, but I notice on Google there's a newer one now.
Not sure what you need to install on Linux.
Duncan Murdoch
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of statements are
rather bizarre and they should be different, but they aren't, and you
shouldn't use a style of coding that suggests that they are.
Duncan Murdoch
Xiaofan
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of McGehee, Robert
Sent: 06
On 12/5/2005 10:14 AM, Doran, Harold wrote:
Sorry, didn't think about that. The mirror I used was
http://lib.stat.cmu.edu/R/CRAN/
I checked other mirrors and they did work fine.
Which packages did you have trouble with? I just tried a couple, and
they were fine.
Duncan Murdoch
it to be damaged.
I'll let Statlib know about this, but I expect their advice will be Use
Firefox.
Duncan Murdoch
Harold
-Original Message-
From: Duncan Murdoch [mailto:[EMAIL PROTECTED]
Sent: Monday, December 05, 2005 3:00 PM
To: Doran, Harold
Cc: Peter Dalgaard; r-help
By default, all test sections are turned on.
Email bug reports to [EMAIL PROTECTED].
Duncan Murdoch
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*(variance+mean^2-mean)/variance,
b = (variance+mean^2-mean)*(mean-1)/variance}
from which you can write your own function pretty easily.
Duncan Murdoch
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source code
file; if you feel like some hacking, you might be able to write a
recovery tool based on that.
Duncan Murdoch
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a call to a
Fortran program hcass2. This very last I was enable to found it in the
sources...
Does anyone can tell me where can I find it?
Fortran is not case sensitive. This is HCASS2, in
src/library/stats/src/hclust.f
Duncan Murdoch
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-150K/day during that week.
Did we get mentioned somewhere (e.g. Slashdot), or was someone just
experimenting with some automated downloading?
Duncan Murdoch
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PLEASE
them in a list.
Duncan Murdoch
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for a different way to
integrate winedit with R.
Duncan Murdoch
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environment variables, then
runs the command. So something like
R CMD ls
will run the ls command.
On Windows, the search is limited to the R bin directory, which seems
more reasonable to me.
Duncan Murdoch
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= 'p'.
Duncan Murdoch
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, varname) - label # to set one
Duncan Murdoch
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On 11/21/2005 2:51 PM, Adrian DUSA wrote:
On Monday 21 November 2005 22:41, Duncan Murdoch wrote:
[...snip...]
Not all dataframes have the variable.labels attribute. I'm guessing
you've installed some contributed package to add them, or are importing
an SPSS datafile using read.spss. So
help you with this one.
Duncan Murdoch
Any assistance with either of these enquiries is most appreciated.
Bob
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On 11/19/2005 6:13 AM, [EMAIL PROTECTED] wrote:
On Fri, 18 Nov 2005 13:49:36 -0500,
Duncan Murdoch (DM) wrote:
I'm working on a Latex document with lots of R code in it, so naturally
enough it would be a good idea to use SWeave. But then I don't get to
see the output as I'm
be
guaranteed to find the global min. (By the way, I'm not sure if we have
a function that can do this: i.e., given a partial ordering on the
rows, sort the matrix so that the resulting order is consistent with it.)
Duncan Murdoch
###
possibles - NULL
length.possibles
it.
Please, please, please: if you need help with an error, show us the
exact error message and tell us the context where you received it.
Duncan Murdoch
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PLEASE do
.
There is a way to do this from within R: run
system(R CMD BATCH test.R,intern=TRUE)
This still depends on your path being set correctly to find R.
Duncan Murdoch
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that is not used for
producing the output .tex file, but which is updated each time I process
the file)?
Duncan Murdoch
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-error)) break
}
Duncan Murdoch
How I can make this? Abort the while, abort the for and run the function
again?
Thanks
Ronaldo
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is.
Duncan Murdoch
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# blah can call itself; each invocation will see the same test
test[i,] - expr # use super-assignment to modify it
}
return(test)
}
This makes one copy of the matrix and works on that. If you want to
make zero copies, you need to get tricky.
Duncan Murdoch
Certainly, I
On 11/17/2005 9:39 AM, Duncan Murdoch wrote:
On 11/15/2005 12:22 PM, Michael Wolosin wrote:
All -
I am trying to write R code to implement a recursive algorithm. I've
solved the problem in a klunky way that works, but uses more memory and
computing time than it should.
A more elegant
))
Duncan Murdoch
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On 11/14/2005 7:39 AM, Dan Bolser wrote:
Duncan Murdoch wrote:
Over the weekend I wrote a small package to evaluate poker hands and to
do some small simulations with them. If anyone is interested in looking
at it, I'd appreciate comments and/or contributions.
How do I install
select.hand(players = list(card(Ah As), NULL, NULL))
Showing: AD 4H 7D 2C 8S
Rank Name Cards Value
11 Self 6H 5HStraight
221 AH AS 3 of a kind
332 AC 3C Pair of As
443 9D 6D A high
Would win 4 person game
Required 7 hands.
Duncan Murdoch
such a thing, and I've
added it to my debugging web page here:
http://www.stats.uwo.ca/faculty/murdoch/software/debuggingR/#tryCatch
Duncan Murdoch
Andy
From: Sean Davis
On 11/11/05 8:38 AM, Spencer Graves [EMAIL PROTECTED] wrote:
Yesterday, I installed R2.2.0 for Windows [Version 2.2.0
to calculate these things. Or some other solution?
Use logs. log(0.02^250) is easy to calculate as 250*log(0.02). There's
also an lchoose() function; it gives
lchoose( 1000, 500)
[1] 689.4673
without complaining.
Duncan Murdoch
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a p-value is not a statistic?
Duncan Murdoch
Regards, Adai
On Wed, 2005-11-09 at 17:09 -0600, Mike Miller wrote:
On Wed, 9 Nov 2005, Gao Fay wrote:
Hi there,
Suppose mu is constant, and error is normally distributed with mean 0 and
fixed variance s. I need to find a statistics
of them.
Duncan Murdoch
On Thu, 2005-11-10 at 06:05 -0500, Duncan Murdoch wrote:
On 11/9/2005 10:01 PM, Adaikalavan Ramasamy wrote:
I think an alternative is to use a p-value from F distribution. Even
tough it is not a statistics, it is much easier to explain and popular
than 1/F. Better
, but its p-value is not uniformly
distributed when mu is -1, even though the null is true.
Duncan Murdoch
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are likely to see where those functions came from. (I see
getAnywhere(read.table)$where
[1] package:base namespace:base
getAnywhere(read.table.default)$where
character(0)
indicating that read.table comes from the base package, and
read.table.default doesn't exist.
Duncan Murdoch
matrix multiplication, you'd use %*%.
Duncan Murdoch
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due to rounding in other
situations, and they might be noticeable in the case of near-collinearity.
Duncan Murdoch
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for the
inconvenience.
Thanks, I can reproduce this. I'll track it down.
Duncan Murdoch
Cheers,
Duncan
version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major2
.
If you want the axes to run from 0 to 100, then you call it as
image.plot(x=(0:10)*10, y=(0:10)*10, z=a)
Duncan Murdoch
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])
Z[changes,5] - Z[changes,2]
but you are almost certainly better off (from a maintenance point of
view) to use the names of the columns, rather than guessing at column
numbers.
Duncan Murdoch
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with debugging info will make the results a lot easier to
interpret.
Duncan Murdoch
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from other objects).
Duncan Murdoch
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in the package DLL
rather than R.dll to find it. Just make sure that the name in the .C
call matches the declared name in the source.
Duncan Murdoch
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PLEASE do read
to look
at the other functions in that file anyway).
Now if someone were running from a binary install in Windows, they
wouldn't have a full copy of the source directories; they need to
download that separately from the binary builds.
Duncan Murdoch
Xiaofan Li wrote:
Hello guys,
I am wondering the default way of transferring arguments in R. Is it by
value or by ref in default case, or could that be changed explicitly?
R passes by value. It's worth reading the language definition manual to
find out about the subtleties (e.g. lazy
with the inaccurate answer
have had some DLL or video driver set their precision to 53 bits instead
of the default 64.
Maybe we need to be even more defensive against such changes.
Duncan Murdoch
)
log2(2^2); floor(log2(2^2))
[1] 2
[1] 2
log2(2^3); floor(log2(2^3))
[1] 3
[1] 2
you'd run it using the style of your batch file
down below, but without changing the paths.
Duncan Murdoch
conout - file('CONOUT$','w')
Error in file(CONOUT$, w) : unable to open
connection
In addition: Warning message:
cannot open file 'CONOUT$', reason 'Permission denied'
so I
of another software?
No, not really. Maybe users will become addicted to it? ;-)
Duncan Murdoch
***
Mat Soukup, Ph.D.
Food and Drug Administration
10903 New Hampshire Ave.
BLDG 22 RM 5329
Silver Spring, MD 20993-0002
On 11/3/2005 10:46 AM, Peter Dalgaard wrote:
Duncan Murdoch [EMAIL PROTECTED] writes:
On 11/3/2005 9:11 AM, Soukup, Mat wrote:
Hi.
After some time, my collegues at the Food and Drug Adminstration have
finally acknowledged R as a powerful statistical computing environment.
However
to track down
what is producing files and not getting rid of them.
What you need to do is to find the directory containing all these
temporary files (print tempdir() on one of your successful attempts),
and delete all the old ones.
Duncan Murdoch
__
R
() in Rterm, it should do what you want.
Duncan Murdoch
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PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
I've now added a version of Vectorize to R-devel.
Duncan
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('Please enter an ID:', file=conout)
flush(conout)
id - readLines(conin, 1)
print(id)
Duncan Murdoch
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PLEASE do read the posting guide! http://www.R-project.org/posting
information, see e.g. David Goldberg (1991), “What Every
Computer Scientist Should Know About Floating-Point Arithmetic”, ACM
Computing Surveys, 23/1, 5–48, also available via
http://docs.sun.com/source/806-3568/ncg_goldberg.html
Duncan Murdoch
__
R
it.
Alternatively, just use a forward slash:
read.table(F:/GEORGIA/species_richness/SR_use.csv, sep=,, header =
TRUE, row.names = 1)
Duncan Murdoch
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PLEASE do read
be able to sum a logical vector, because it will be
coerced to numeric when needed. The crashes are being caused by
something else. Get your users to tell you exact error messages and you
should be able to diagnose it.
Duncan Murdoch
__
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