Displaying 20 results from an estimated 20000 matches similar to: "Trim function ?"
2000 Oct 02
2
R function for "interp"
Hi
How can I do the same has interp in s+ with R ? I've looked to
"approxfun" but didn't figured out how to do it.
Thanks
EJ
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2003 Jan 24
4
memory problems
Hi
I'm computing a bca interval using bca.ci from the boot package.
When I try to use this I get an error
> library(boot)
> boot(logglm.data,boot.fishpower,2500,coef.vec=coeflm.vec)->blm8901
> bca.ci(blm8901,index=29)
Error: cannot allocate vector of size 456729 Kb
However my machine has 2GB of memory and without R running I only have
112M of memory used.
Is there something
2003 Jan 23
2
Exporting graphics window
Hi
I'm working on a remote computer with R (SuSE 8.1) and I want to do some
ploting. Does anyone knows if it is possible to export the graphics
window in to my display and how I can do it ?
Thanks
EJ
--
Ernesto Jardim <ernesto at ipimar.pt>
Marine Biologist
Research Institute for Agriculture and Fisheries
Lisboa, Portugal
Tel: +351 213 027 000
Fax: +351 213 015 948
2003 Apr 14
6
Charts to M$Word - what's the best format
Hi
I'm exporting some graphs from R to M$Word. I used png, jpeg and bmp and
the quality is poor when comparing with the postscript.
What is the best way to export a chart to be included in a M$Word file ?
Thanks
EJ
2003 Jul 03
2
unlist
Hi
I have a list with several data.frames, all with the same number of
colunms but different number of rows, and I'd like to transform this
list into a single dataframe. I need to mimic an rbind of all dataframes
...
Transform doesn't seem to work :-(
Thanks
EJ
--
Ernesto Jardim <ernesto at ipimar.pt>
Bi?logo Marinho/Marine Biologist
IPIMAR - Instituto Nacional de Investiga??o
2001 Apr 03
2
Importing from Splus (PR#891)
Full_Name: Ernesto Jardim
Version: 1.2.2
OS: SuSE Linux 6.4
Submission from: (NULL) (193.137.98.92)
I wanted to import an array, dim=c(28,12,17), from splus into R.On splus I did
dump(c("array"),file="dump.out)
I checked and Splus could source it.
Than, in R I tryied to source it with:
source("dump.out")
and got and error message:
> source("dump.out")
2003 Jan 16
1
bootstraping lm
Hi
I'm doing a bootstrap of a linear model using:
boot.fishpower <- function(data, i){
data <- data[i,]
fplm <- lm(log(U)~Q+S+P+B+D, data=data)
fp <- coef(fplm)
exp(fp)
}
> boot(logglm.data,boot.fishpower,100)
Error in "[<-"(*tmp*, r, , value = statistic(data, i[r, ], ...)) :
number of items to replace is not a multiple of replacement
length
2004 Mar 12
5
grep
Hi,
I want to use the first digit of the elements of a vector.
I've tried grep but didn't work.
Any help is welcome.
Thanks
EJ
> grep("^[0-9]",as.character(runif(100,0,2)))
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18
[19] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
35 36
[37] 37 38 39 40 41 42 43 44 45
2001 Apr 06
2
thin plate splines
Hi
Does someone knows if there's a function/package that can make thin
plate splines ? I've looked in mgcv and splines but I haven't found
anything.
Thanks
EJ
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2005 Jan 07
3
lognorm
Hi!
I 've a problem to have a lognorm distribution with
mean=1 and var (or sigma)=1.
rlnorm(1000,0,0)
rlnorm(1000,1,1)
rlnorm(1000,0,1)
.... ?
Can you help me?
2003 Apr 03
3
How to organize/develop an R function
Hi
Maybe this is not an issue about R. It's probably a programming issue
and I am not a developer at all. Anyway my main developing activities
are in R and that's where I have difficulties.
When I develop a function or group of functions I lose eternities with
the objects attributes and classes. I do a lot of object manipulation
(lists to arrays, factors to numeric vectors, etc, etc) so
2000 Aug 21
4
Excluding rows from a matrix
Hi
I have a matrix (4 x 950) and I want to remove 3 rows, where the values
from the first column are 713, 714 and 715. I can select the rows, one
by one, with
mat[mat$first==713,]
mat[mat$first==714,]
...
but I'm unable to (i) select the 3 rows at once, (ii) select the matrix
excluding those rows.
How can I do it ?
Thanks
EJ
2002 Oct 10
1
NEdit Highligth patterns for R
Hi
I've just submitted to the NEdit development team a R highligth patterns
for NEdit (www.nedit.org).
NEdit is a text editor for LINUX which I use to write small R functions.
In my opinion is a very good tool for small scripts, maybe for huge
projects is not the best.
I'm attaching the R-5.1.pats file so you can try it.
As usual contributions and comments are welcome.
Regards
EJ
2002 Nov 07
1
Save method
Hi
I want to use save methods but I found that the save function is not a
generic function ...
If I define
save <- function(x, ...)
UseMethod("save")
I'll be overwriting the original save function ...
Is there another way of doing this ? or am I understanding it wrong ?
Regards
EJ
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r-help
2002 Oct 03
1
Strange behaviour of "image"
Hi
I'm using "image" and got some strange results. When I define the color
sequence as "col=gray(seq(0.95,0,-0.01))" or
"col=gray(seq(0.94,0,-0.01))" I got an error
Error in gray(level) : invalid gray level, must be in [0,1].
If I use 0.96 or 0.93 it works ...
EJ
ps: R 1.6.0 on SuSE Linux 8.0
2000 Aug 04
3
How to use complicated FUN in apply ?
Hi everyone
I'm trying to use
sigma2.mat<-apply(ri.mat,2,'-n/2*log(sum(ri.mat^2)/n)')
but it's not working.
Is it wrong to use that kind of FUN in apply ? or am I doing something
wrong ?!
Thank's
ernesto
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2004 May 27
1
identation in Rd file, section "details"
Hi,
I want to describe an algoritm in the details section of an Rd file and
I'm having trouble to ident the different text rows. Can someone tell me
how I can ident text in Rd files ?
Thanks
EJ
2002 Jul 09
3
Error handling
Hi
I wrote a function implementing an algoritm for simulation of spatial
sampling plans (using geoR).
I'm using a range of parameters to perform several simulation and
sometimes this parameters create function errors wich cause the algoritm
to stop.
How can I avoid this ?
Below there's a small example that I made to study the problem but I was
not able to solve it. I've tried
2001 May 07
1
gss package - predict.ssanova
Hi
I'm using the gss package to fit thin plate splines. I've fitted the tps
without problems and got a ssanova object. Then I wanted to do some
prediction using a new set of data (latlon data) and I got an error
message:
> predict.ssanova(recs.spliney,recn.grid,se.fit=FALSE)
Error in array(x, c(length(x), 1), if (!is.null(names(x)))
list(names(x), :
attempt to set an
2005 Jul 07
2
R under suse linux 9.3
Hi, dear list members,
I've been using R under windows XP and I am now changing
my system to SUSE LINUX 9.3.
I could figure out that there is no precompiled version
of R for LINUX. To get me going, I would like your help
regarding what I need to setup R under my SUSE LINUX.
Which compiler do I need to be able to compile the source
and I was wondering if I could get GNU compiler?