Displaying 20 results from an estimated 10000 matches similar to: "R for large data sets"
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 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$Word file ?
Thanks
EJ
2004 Mar 12
5
grep
Hi,
I want to use the first digit of the elements of a vector.
I've tried grep but didn't work.
Any help is welcome.
Thanks
EJ
> grep("^[0-9]",as.character(runif(100,0,2)))
[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18
[19] 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
35 36
[37] 37 38 39 40 41 42 43 44 45
2003 Jan 24
4
memory problems
Hi
I'm computing a bca interval using bca.ci from the boot package.
When I try to use this I get an error
> library(boot)
> boot(logglm.data,boot.fishpower,2500,coef.vec=coeflm.vec)->blm8901
> bca.ci(blm8901,index=29)
Error: cannot allocate vector of size 456729 Kb
However my machine has 2GB of memory and without R running I only have
112M of memory used.
Is there something
2001 Apr 03
1
Exporting from Splus into R
Hi
I want to export an array (dim=c(24,12,17)) from splus into R. I've
tried dump but R couldn't source it.
Is there a fast and clean way of doing this ?
Thanks
EJ
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2000 Oct 02
2
R function for "interp"
Hi
How can I do the same has interp in s+ with R ? I've looked to
"approxfun" but didn't figured out how to do it.
Thanks
EJ
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2000 Aug 21
4
Excluding rows from a matrix
Hi
I have a matrix (4 x 950) and I want to remove 3 rows, where the values
from the first column are 713, 714 and 715. I can select the rows, one
by one, with
mat[mat$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
2005 May 12
3
acf problem ?
Hi
I'm getting the following error that do not make sense to me, what am
Idoing wrong ?
> acf(Recsim[1,], lag.max=1)
Error in acf(Recsim[1, ], lag.max = 1) : 'lag.max' must be at least 1
Regards
EJ
2004 Jul 09
3
Problem with bwplot
Try factor(vec2) in your bwplot() call.
-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Ernesto Jardim
Sent: Friday, July 09, 2004 9:41 AM
To: Mailing List R
Subject: [R] Problem with bwplot
Hi,
I'm ploting some box-and-whisker plots with bwplot but I'm not getting
any box-and-whiskers ... just dots.
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
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
1999 Mar 22
2
R or S+ !
Hi all !
I'm sure this is a question that annoys some of you but I'm really
needing help on this !
I've been using R for about 1 year now. I'm a biologist, so stats are a
tool for my research not the end itself. During this time I've enjoyed
working with R but the graphical part of it drives me crazy and the
small possibilities in terms of reading some file formats also
2002 Apr 10
3
problem with do.call
Hi
I'm writing a function that uses four parameters (scalars) and I need to
run it in an iterative process (the parameters vary to find the minimum
RSS).
I don't want to use loops and so tried the do.call function. However it
didn't work. My understanding is that the do.call simple runs the
function replacing the arguments (scalars by vectors), instead of runing
the function for
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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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
2002 May 09
2
Trim function ?
Hi
I've imported some data from a oracle database and the strings have a
lot of blank space (because of the delimiter). I want to remove these
blanks space with something similar to a trim function.
I don't find a trim function or something similar. Can someone give a
help on this ?
Thanks
EJ
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r-help
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?
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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