Displaying 20 results from an estimated 20000 matches similar to: "fast way to check an object is a member of a list?"
2003 Jul 22
3
R and C++ compared with only C++
My computer is a pentium 4 running at 2.4 GHz.
My R is 1.7.1
I have written a program in R that calls C++. The program spends most of the
time in C++ ( > 90% ). R basically deals with output and input.
How slower can this be compared with the program I would get from rewriting
everything in C++?
Thank you.
2003 Apr 22
7
Subject: Eliminate repeated components from a vector
X-Mailer: VM 7.00 under 21.4 (patch 6) "Common Lisp" XEmacs Lucid
Reply-To: fjmolina at lbl.gov
FCC: /home/f/.xemacs/mail/sent
Does anyone know how I can eliminate repeated elements from a vector?
2002 Oct 11
2
No subject
Subject: activity of CPU used by R
X-Mailer: VM 7.00 under 21.4 (patch 6) "Common Lisp" XEmacs Lucid
Reply-To: fjmolina at lbl.gov
FCC: ~/mail/sent
My R processes never use more than 50% of my CPU activity. Is there any way I can make
them use more of it?
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read
2002 Mar 17
5
compute variance of every column in a matrix without a loop
Is it possible to compute the variance of every column in a matrix
without a loop?
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
2003 Mar 07
24
Hello,
I am trying to use 'R' for K-means simulatio, could you please advise me how I can read my data into a two dimesional array? Or is there any method which directly reads the excell file? Please let me know asap.
Regards
Skanda Kallur
Cogito, Ergo Sum! Rene Descartes
2002 Mar 13
3
Error: subscript out of bounds
How can locate in my program an error of that kind (Error: subscript
out of bounds)?
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
2002 Nov 18
2
No subject
Subject: Error: cannot allocate vector of size 554 Kb
X-Mailer: VM 7.00 under 21.4 (patch 6) "Common Lisp" XEmacs Lucid
Reply-To: fjmolina at lbl.gov
FCC: ~/mail/sent
Does anyone know how I can avoid this error?
Error: cannot allocate vector of size 554 Kb
I think my computer should have enough memory to allocate such vector.
2004 Jan 30
7
Detect the presence of an object
Is there a function like "is.there" such that
is.there ( a ) returns TRUE is object 'a' is in the current environment and
FALSE otherwise?
Thank you.
Francisco J. Molina
2003 Mar 17
1
"Debugging R from within Emacs"
In
"Frequently Asked Questions on R"
there is a section
"Debugging R from within Emacs"
I suppose this is for developpers ( not useful to debug R source code ).
Am I right?
2003 Jul 17
1
R matrices in memory
Acording to the documentation in gsl
"The physical row dimension tda, or trailing dimension, specifies the size
of a row of the matrix as laid out in memory"
I think that if I pass a matrix to C++ through .C as single ( or.double ),
that is,
.C ( as.single ( matrix ))
then the tda is simply the number of elements of that matrix.
Am I right?
Thank you.
2004 Feb 12
3
How to detect whether a file exists or not?
I would like my program to load variables x,y,x from a file 'myFile.r' but
if this file does not exist, I want my program to create/initialize x,y,z.
Does anyone know how to do this?
Thank you very much.
Francisco J. Molina
2002 Mar 05
2
No subject
I get this error in one of my R programs and I have no idea what it is.
Any hint?
Error in "[<-"(*tmp*, , 1, value = Stat[1:numberSamples]) :
object is not subsetable
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or
2003 Sep 24
1
weird behaviour when calling c++
I am using 1.7.1 in a PC ( redhat 9, linux )
I created a subroutine in C++, mySubrutine, to be used in R. To debug this
subroutine I have a main routine in C++ that calls mySubrutine. The only thing main () does is to provide mySubrutine with its
arguments
(this is the easiest way for me to debug subroutines written in
C++ and intended to be used in R ).
I also have a version of the same
2002 Mar 19
5
matrix with fix number columns but variable number rows
I have to store a number of vectors of the same length. I know the
length but I do not know the number of vectors.
How can I store them as they are created (they are created one by one)?
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or
2003 May 31
5
parse on left hand side of R assignment
I keep finding myself in a situation where I want to calculate a
variable name and then use it on the left hand side of an assignment.
For example
iteration <- 1
varName <- paste("run",iteration,sep="")
myList$parse(text=varName) <- aColumn
I want to take some existing variable "aColumn" and use the name
"varName" name for it and put it into a
2017 Aug 26
2
DC Upgrade from 4.1.7 to 4.6.7
> -----Message d'origine-----
> De : samba [mailto:samba-bounces at lists.samba.org] De la part de Rowland
> Penny via samba
> Envoyé : lundi 21 août 2017 16:34
> À : samba at lists.samba.org
> Objet : Re: [Samba] DC Upgrade from 4.1.7 to 4.6.7
>
> On Mon, 21 Aug 2017 15:52:01 +0400
> HB via samba <samba at lists.samba.org> wrote:
>
> > Hello all,
2003 May 12
2
I can not load MASS at starting R
I have istalled R with the rpm package available for RedHat 9.0.
My machine is a pentium4.
This is my .Rprofile file ( placed in my home directory ):
w <- function ( x, y ) write.table ( t ( x ), file = y, quote = F, col.names = F, row.names = F, sep = ',' )
q <- function () q ( save = 'no' )
library( stepfun )
library ( MASS )
The MASS library is not loaded when R is
2005 Mar 16
8
Summing up matrices in a list
Dear all,
I think that my question is very simple but I failed to solve it.
I have a list which elements are matrices like this:
>mylist
[[1]]
[,1] [,2] [,3]
[1,] 1 3 5
[2,] 2 4 6
[[2]]
[,1] [,2] [,3]
[1,] 7 9 11
[2,] 8 10 12
I'd like to create a matrix M<-mylist[[1]]+mylist[[2]]
[,1] [,2] [,3]
[1,] 8 12 16
[2,] 10 14 18
2017 Aug 21
4
DC Upgrade from 4.1.7 to 4.6.7
Hello all,
Our Samba AD DC is running perfectly for years with the following basic
setup (see smb.conf below) :
- one DC running Samba 4.1.7 / CentOS 6.5 (compiled from sources)
- internal DNS
- this DC is also a Print Server
- about 400 PC workstations (mainly win7 Pro / win10 Pro and some XP
Pro), and about 300 users
- several Synology NAS file servers
2004 Jul 21
2
add more data to a data file, problem with .Rprofile
Hi,
Is there a way to incorporate an R object x to a file already containing R objects?
It seems that 'save' is not capable to do this. If I save x to a file containing
previously saved data, then I will lose this data.
I use the funcion hsv in .Rprofile but it is recognized. Couriously, if I source .Rprofile
when R is already running I do not get any error message.
Thank you.