.tmpl
#BSUB -q mpi_job_queue
/opt/openlava/bin/openmpi-mpirun
-np 1 R CMD BATCH "<%= rscript %>"
Please let us know your comments,
Thanks,
Feng Li
Teraproc Inc.
[[alternative HTML version deleted]]
__
vectorize them.
Can anyone give me a hint to speed this up? Thanks in advance!
Feng
--
Feng Li, Ph.D.
School of Statistics and Mathematics
Central University of Finance and Economics
100081 Beijing, China
http://feng.li/
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R-help@r-project.org mailing
On 04/02/2015 10:40 PM, Duncan Murdoch wrote:
On 02/04/2015 9:31 AM, Feng Li wrote:
Dear all,
I am working with a likelihood function that requires the inverse of
many small covariance matrices for multivariate normal densities. When
the sample size is large, this calculation is really heavy
ge?
Thanks in advance.
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
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Dear R,
Why rm(list<-ls()) gives an error but rm(list=ls()) not? I remember the
operator â<-â can be used anywhere...
Thanks!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version d
Dear R,
Why rm(list<-ls()) gives an error but rm(list=ls()) not?. I remember the
operator â<-â can be used anywhere...
Thanks!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version d
Dear R,
I am looking for R-package related to INARMA (Integer-valued ARMA). Can
anyone give me some information? I did not get information from task view.
Many thanks.
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li
print(b)
+ }
+ }
>
> myTask <- function(a)
+ {
+ b <- 3
+ testFun(a, b = b)
+ }
> myTask(FALSE)
Error in print(b) : object 'b' not found
Thanks in advance!
Feng
--
Feng Li
Department of Statistics
Stockholm University
SE-106 9
u just copy and
paste it. If it bites you, the mouse and keyboard did it:)
Cheers,
Feng
>
> Cheers,
> Michael
>
>
> On Mon, Jan 14, 2013 at 10:21 AM, Feng Li wrote:
> > Dear all,
> >
> > Why does not the three-dot accept arguments from the parent env
"x"), "\n");
> g(...) }
> f(x = 3, y = 4)
> f: exists('x') = FALSE
> g: exists('x') = TRUE
> $y
>
>
>
>
> On Mon, Jan 14, 2013 at 5:21 AM, Feng Li wrote:
> Dear all,
>
> Why does not the t
Many
many thanks!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
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PLEA
Sorry. It was my typo. Should be three times as it in the example.
Feng
On Mon, Sep 13, 2010 at 11:32 AM, Jim Lemon wrote:
> On 09/13/2010 07:19 PM, Feng Li wrote:
>
>> Dear R,
>>
>> I have a vector, say a = c(1,2,4,5,6,8). Can I generate a vector or array
>>
Thanks. That's what I want. Sorry for the typo:)
Feng
On Mon, Sep 13, 2010 at 11:42 AM, Ted Harding
wrote:
> On 13-Sep-10 09:19:21, Feng Li wrote:
> > Dear R,
> > I have a vector, say a = c(1,2,4,5,6,8). Can I generate a vector
> > or array (2-by-
with 1-D or
2-D, but I don't knot how to manage it when the dimension is large.
Can someone give a hint? Thanks in advance!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version deleted]]
_
rs){
> return(jj)
> } else {
> return((jj$solved >= 0) & all(jj$soln<1))
> }
>
> }
> > isin.chull(x_i,X)
> [1] FALSE
>
> (we can discuss offline; I'll summarize)
>
> HTH
>
> rksh
>
> On 24/09/10 10:44, Feng Li wrote:
&
Intel core 2 CPU which works well. But I haven't tried
with i7 CPU.
Feng
On 10/05/2010 12:42 PM, Costas wrote:
Hello,
Is there a way to force through R the amount of the cpu's cores (or
the cpu's utilization level) used under Windows 7 or Linux?
Thanks,
Costas
--
F
the above task but take away some burn-in, e.g. do
not take A$a[,,1:2],and A$b[,,1:2] into account. How can I do then?
Thanks!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version dele
Yes, that is what I what...
Thanks.
Feng
On Wed, Oct 13, 2010 at 6:38 AM, Michael Bedward
wrote:
> Hello Feng,
>
> I think you just want this...
>
> lapply(A, function(x) apply(x[,,-c(1,2)], c(1,2), mean))
>
> Michael
>
>
> On 13 October 2010 04:00, Feng Li wrote
y starting from this line ##
test <- function()
{
x<- 5
browser()
y<-4
}
test()
end of copy at this line
Any suggestions are most welcome!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockhol
r Eclipse.
>
> Of course, using a new IDE is a big undertaking, but I can assure you: it's
> worth it! This is just one small benefit.
>
> On Wed, Jan 12, 2011 at 4:00 PM, Feng Li wrote:
>
>> Dear R,
>>
>> How can I disable using "enter" key to e
w other experienced R users have never encountered this. But if you
> wish you could submit this as a 'wishlist' request to R-bugs, and if enough
> users support it (and especially if someone submits a high-quality patch to
> do this), it might be added in a future release
ould like to have a list "b" like this
> b <- list(a[, 1], a[, 2])
> b
[[1]]
[1] 1 2 3 4 5
[[2]]
[1] 6 7 8 9 10
Thanks in advance!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
hen I put another element
in the exponent part like this,
> a^c(2, 3, 4)
[,1] [,2] [,3]
[1,]1 81 125
[2,]8 16 1296
BTW, I have a 64bit R version (2.11) for Linux. Any advice would be
appreciated.
Feng
--
Feng Li
Department of Statistics
Stockholm University
106
Very fruitful, thanks all of you:)
Feng
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and prov
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
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PLEASE do read the posting guide
I meant "sparse matrix", sorry for the typo.
Feng
On Sat, Jan 29, 2011 at 7:02 PM, Feng Li wrote:
> Dear R,
>
> I have a simple question concerning with a special case of sparse matrix
> multiplications. Say A is a 200-by-1 dense matrix. B is a 1-by-1
> bl
Thanks Martin. That is exactly what I want.
Feng
On Sat, Jan 29, 2011 at 11:59 PM, Martin Maechler <
maech...@stat.math.ethz.ch> wrote:
> >>>>> "FL" == Feng Li
> >>>>> on Sat, 29 Jan 2011 19:46:48 +0100 writes:
>
>FL> I meant
I known R from version 2.12 allows number of
clusters to be one. So I guess allowing number of clusters to be nrow(x)
should be also possible in the future release?
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML v
m missing something here, but why would you want to create as many
> clusters as there are observations? Won't the outcome just be one
> observation in each cluster?
>
>
>
>
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
htt
x4B]
[1] 1 2 3 4 5 6 7 8 9
I can reproduce this for both 32bit windows and 64bit linux with R 2.12.1
and some earlier versions.
Can someone tell me whether this a bug or a feature or something I don't
know?
Thanks!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106
ector since
a matrix is just a vector with dimensions attributed in R. I know I can
convert them to a vector but I did not do it anyway.
Thanks for this information!
Feng
On Sat, Feb 26, 2011 at 6:29 PM, Sarah Goslee wrote:
> Hello,
>
> On Sat, Feb 26, 2011 at 12:11 PM, Feng Li wrote:
system is computationally singular: reciprocal condition number = 1e-17
Thanks in advance!
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version deleted]]
__
R-help@r
ngularity problem
Peter Langfelder wrote:
On Wed, Mar 16, 2011 at 8:28 AM, Feng Li<m...@feng.li> wrote:
Dear R,
If I have remembered correctly, a square matrix is singular if and only
if
its determinant is zero. I am a bit confused by the following code error.
Can someone give me a hint?
a<- m
be very
convenient for the window users especially when they are running time
consuming simulations. What do you think?
Best,
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
[[alternative HTML version deleted]]
___
people love R.
That is all my concern. Have a good day!
Feng
On Wed, Mar 23, 2011 at 11:30 AM, Prof Brian Ripley
wrote:
>
> On Wed, 23 Mar 2011, Feng Li wrote:
>
>> Dear R,
>>
>> I rare use the standard R-gui on Windows. Yesterday I tried the latest
>> sta
utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a name
an.org) (gcc version
4.6.3 (Debian 4.6.3-1) ) #1 SMP Sun Mar 4 22:48:17 UTC 2012
Best regards,
Feng
--
Feng Li
Department of Statistics
Stockholm University
106 91 Stockholm, Sweden
http://feng.li/
__
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https://stat.
No such file or directory
I have tried a few variations on the theme, using quotes in
different places, but have not succeeded till now.
Any suggestions?
Martin Maechler, ETH Zurich
--
Feng Li
Department of Statistics
Stockholm University
SE-106 91 Stockholm, Sweden
http://feng.li/
__
No such file or directory
I have tried a few variations on the theme, using quotes in
different places, but have not succeeded till now.
Any suggestions?
Martin Maechler, ETH Zurich
--
Feng Li
Department of Statistics
Stockholm University
SE-106 91 Stockholm, Sweden
http://feng.li/
__
se T and F. Use TRUE and FALSE.
4. If there is no element of z equal to r the loop will run forever (with the
correct condition of course).
A much better way of doing what you seem to be wanting is
which(z == r)
or possibly
any(z == r)
Berend
--
Feng Li
Department of Statistics
Stockho
Dear R,
I have two R instances running at the same time, say instance A and instance
B. Is there a simpler way to pass the data in A to B?
More precise, I have a stupid example:
In instance A, I am running a function "test1"
test1 <- function (x1)
{
x2 <- sin(x1)
return(x2)
}
In inst
Very very fruitful.
Now I only do the experiment on my single computer with a Quad CPU and more
than 2 G ram.
Let me have a try first.
Feng
On Wed, Feb 4, 2009 at 4:02 PM, Warren Young wrote:
> Feng Li wrote:
>
>>
>> I have two R instances running at the same time,
nstance B, another function "test2"
>>
>> test2 <- function (x2)
>> {
>> x3 <- cos(x2)
>> return(x3)
>> }
>>
>
>
>
> On Wed, Feb 4, 2009 at 9:08 AM, Feng Li wrote:
>
> Dear R,
>>
>> I have two R instanc
On Wed, Feb 4, 2009 at 4:02 PM, Warren Young wrote:
> Feng Li wrote:
>
>>
>> I have two R instances running at the same time,
>>
>
> On the same computer, or on different computers?
The first trial is only on my single computer with Quad CPU and more than 2G
me
se the following command:
> exp(1000)/(exp(1007)+5)
[1] NaN
I am pretty sure this should be close to zero. My question is whether there
is a general way to solve this kind of question or should I do some settings
before computing?
Thanks in advance!
Feng
--
Feng Li
Department of S
;
> > as.numeric(exp(as.brob(1000))/(exp(as.brob(1007))+5))
> [1] 0.000911882
> >
>
> Feng Li wrote:
>
>> Dear R,
>>
>> I have two questions:
>>
>> 1, Why both R and Matlab give 0*Inf==NaN? To my knowledge, it should be
>> zero
>> math
Thanks for your explanation. Now I am quite clear about that.
On Wed, Feb 11, 2009 at 12:05 PM, Thomas Lumley wrote:
> On Wed, 11 Feb 2009, Feng Li wrote:
>
> 1, Why both R and Matlab give 0*Inf==NaN? To my knowledge, it should be
>> zero
>> mathematically. Am I right?
>
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