[R] Partial loop?

2009-06-26 Thread Hesen Peng
My dear R buddies, I'm writing a loop program like this: for(i in 1:n){ for(j in 1:i){ ... } } I wonder if there is any simple apply()-like function to make the loop a little bit easier and faster. Thanks a lot. Best wishes, -- 彭河森 Hesen Peng http://hesen.peng.googlepages.com/

[R] questions about meta-analysis

2009-06-26 Thread sdzhangping
Dear R users: In the example of meta-analysis (cochrane, package rmeta), I can not found the p-value of Test for overall effect, and some other indices (Z, I, weight and et al). How can I get the these indices listed? > library(rmeta) > data(cochrane) > cochrane name ev.trt n.trt ev.

[R] How to automatically placing a legend in empty space

2009-06-26 Thread Jason Rupert
(Sorry if this goes up to the site twice. I guess I am still learning how to post to R-Help) At one point I believe I heard of an R package that would automatically find the most empty space in a plot, and then that answer could then be used to intelligently place a legend. I would like to

Re: [R] a plot of stacked boxes

2009-06-26 Thread hadley wickham
On Fri, Jun 26, 2009 at 10:27 PM, Osman Al-Radi wrote: > Dear Richard and David, > > Thanks for this reference. I looked into vcd and mosaic plot, it is a nice > plot for investigating associations between two or more variables. However, > I just need to plot the frequency of a single variable as t

Re: [R] a plot of stacked boxes

2009-06-26 Thread Osman Al-Radi
Dear Richard and David, Thanks for this reference. I looked into vcd and mosaic plot, it is a nice plot for investigating associations between two or more variables. However, I just need to plot the frequency of a single variable as the area of the box. boxes are stacked to fill a larger box that

Re: [R] R and Sound

2009-06-26 Thread spencerg
I just tried the following: library(RSiteSearch) sound <- RSiteSearch.function('sound') HTML(sound) This identified 117 help pages in 40 packages containing the word "sound". This included 30 help pages in a package called "sound", which is "A Sound Interface for R". It also includ

Re: [R] How to read a specific dataset, not the entire data, from HDF5?

2009-06-26 Thread Felix Andrews
Hi DH I recommend the rgdal package, which provides R bindings for the Geospatial Data Abstraction Library (GDAL). This does handle HDF5, according to the list at http://www.gdal.org/formats_list.html I have not ever used HDF5 myself, but that it what I would try. -Felix 2009/6/27 Daehyok Shin

Re: [R] changing default arguments of a function and return the modified function as a result

2009-06-26 Thread Gabor Grothendieck
Look at the source code to the Defaults package. On Fri, Jun 26, 2009 at 12:52 PM, Miguel Bernal wrote: > Dear R-users, > > I am trying to develop a function that takes another function as an argument, > changes its default values and returns a list of things, among which the > initial function wi

Re: [R] changing default arguments of a function and return the modified function as a result

2009-06-26 Thread Miguel Bernal
That was indeed what i was looking for (thanks also for the currying cite). I also wanted flexibility on the number of arguments you can pass to the function, which can be achieved by: myfun <- function(x, a=19, b=21){ return(a * x + b) } mysecond.fun <- function(dumb1, dumb2, cc=myfun, cc.ar

[R] Constrained corr matrix closest to a given corr matrix

2009-06-26 Thread Serguei Kaniovski
Dear All! Is there any code to find a constrained correlation matrix closest in some sense (preferably in the sense of the geometric approximation) to a given correlation matrix? By constrained I mean with some elements constrained, or, simply, set to zero. I have read in a paper that says th

Re: [R] How to avoid ifelse statement converting factor to character

2009-06-26 Thread Craig P. Pyrame
Dear Peter, Thank you for the explanations. Some further questions are inlined below. Best regards, Craig Peter Dalgaard wrote: Craig P. Pyrame wrote: Stavros Macrakis wrote: It gives me a headache, too! I think you'll have to wait for a more expert user than me to supply explanations of th

Re: [R] Where can I find information on how to subsample a time series?

2009-06-26 Thread Whit Armstrong
assuming you pull the data you want into x and y: w...@ubuntu:~$ R > library(fts) > x <- fts() > y <- fts() > xy.cor.200 <- moving.cor(x,y,200) > tail(xy.cor.200) [,1] 2012-03-12 -0.3009635 2012-03-13 -0.2923489 2012-03-14 -0.2824015 2012-03-15 -0.2662689 2012-03-16 -0.2566354 201

Re: [R] changing default arguments of a function and return the modified function as a result

2009-06-26 Thread baptiste auguie
Is this what you want? myfun <- function(x, a=19, b=21){ return(a * x + b) } mysecond.fun <- function(a, b, cc=myfun, cc.args=list(a=2,b=15) ){ list(a=a, b=b, cc = function(x) cc(x, cc.args$a, cc.args$b)) } mysecond.fun(a=1,b=2)$cc(x=12) It may be that you're after a Curry (*) function, as in,

Re: [R] ANOVA with means and SDs as input

2009-06-26 Thread Emmanuel Charpentier
Le jeudi 25 juin 2009 à 12:15 +0200, Sebastian Stegmann a écrit : > Dear R-community, > > I'm struggling with a paper that reports only fragmented results of a > 2by2by3 experimental design. However, Means and SDs for all cells are given. > > Does anyone know a package/function that helps computi

Re: [R] Alternate error structures in lme4?

2009-06-26 Thread Ben Bolker
bamsel wrote: > > Hi R users, > > The nlme library enabled several alternate error structures useful for > longitudinal or repeated-measures data. For example, a continuous AR(1) > process: > > model_2 = update(model_1, correlation = corCAR1(form = ~ time | subject)) > > Does anybody know i

Re: [R] changing default arguments of a function and return the modified function as a result

2009-06-26 Thread David Winsemius
On Jun 26, 2009, at 12:52 PM, Miguel Bernal wrote: Dear R-users, I am trying to develop a function that takes another function as an argument, changes its default values and returns a list of things, among which the initial function with its default arguments changed. An example of what

Re: [R] How to avoid ifelse statement converting factor to character

2009-06-26 Thread Peter Dalgaard
Craig P. Pyrame wrote: Stavros Macrakis wrote: It gives me a headache, too! I think you'll have to wait for a more expert user than me to supply explanations of these behaviors and their rationales. Thanks, Stavros. I hope someone with expertise will shed more light on this, and in the m

[R] correspondence analysis question

2009-06-26 Thread Data Analytics Corp.
Hi, I have a matrix of 31 rows and 8 columns. The rows represent attributes of a product and the columns represent segments in a market. The cell values are utilities scaled so that the sum of the utilities across attributes for a segment equals 100. I want to find which attributes are clo

Re: [R] changing the loss function in the logistic regression?

2009-06-26 Thread Frank E Harrell Jr
Michael wrote: Hi Frank, Thanks for your help! I want to incorporate lift score as the optimization objective. How to do that in logistic regression? Thanks! Please re-read my note. Models should be fitted using proper scoring rules. Otherwise the resulting fit is bogus. Thanks Frank

Re: [R] Heteroskedasticity and Autocorrelation in SemiPar package

2009-06-26 Thread Liviu Andronic
On Fri, Jun 26, 2009 at 10:11 PM, Susan Chen wrote: > Does anyone know how to report heteroskedasticity and > autocorrelation-consistent standard errors when using the "spm" command in > SemiPar package? Suppose the original command is > sp1<-spm(y~x1+x2+f(x3), random=~1,group=id) > There's HAC()

[R] Where can I find information on how to subsample a time series?

2009-06-26 Thread Ted Byers
I suspect I'm looking in the wrong places, so guidance to the relevant documentation would be as welcome as a little code snippet. I have time series data stored in a MySQL database. There is the usual DATE field, along with a double precision number: there are daily values (including only normal

Re: [R] changing the loss function in the logistic regression?

2009-06-26 Thread Michael
Hi Frank, Thanks for your help! I want to incorporate lift score as the optimization objective. How to do that in logistic regression? Thanks! On Fri, Jun 26, 2009 at 7:47 AM, Frank E Harrell Jr wrote: > Michael wrote: >> >> Hi all, >> >> Is there a way to change the loss function in the logist

[R] changing default arguments of a function and return the modified function as a result

2009-06-26 Thread Miguel Bernal
Dear R-users, I am trying to develop a function that takes another function as an argument, changes its default values and returns a list of things, among which the initial function with its default arguments changed. An example of what i will like to obtain below: ## initial function myfun

[R] How to read a specific dataset, not the entire data, from HDF5?

2009-06-26 Thread Daehyok Shin
Hi. Recently I am working for a project to generate massive numeric data. After storing them in HDF5 using PyTables, we are trying to use R for data analysis and visualisation. Surprising to me, however, I could not find a R package to allow the reading of a specific dataset (or its slide) in a HD

Re: [R] (performance) time in Windows vs Linux

2009-06-26 Thread Uwe Ligges
Yes, under 64-bit it is sometimes slower and it highly depends on the problem and the compiler you have. Note also that nobody managed to get a 64-bit Windows R binary compiled with gcc so far. Remember, 10 years ago there was the SUN Ultra Sparc III and above architecture, and gcc was known to

Re: [R] (performance) time in Windows vs Linux

2009-06-26 Thread milton ruser
Hi there, I have both systems on a DELL 64bit machine. I compiled R 2.9.0 on both systems, to get 64bits capability. Surpriselly, on Linux (Ubuntu with I installed 3 month ago) I spent 41s to run the same test you did, and less time (35s) under Vista. In fact I had noticed that I not have gained t

[R] Alternate error structures in lme4?

2009-06-26 Thread bamsel
Hi R users, The nlme library enabled several alternate error structures useful for longitudinal or repeated-measures data. For example, a continuous AR(1) process: model_2 = update(model_1, correlation = corCAR1(form = ~ time | subject)) Does anybody know if this is available in lme4? Thank y

[R] Heteroskedasticity and Autocorrelation in SemiPar package

2009-06-26 Thread Susan Chen
Hi all, Does anyone know how to report heteroskedasticity and autocorrelation-consistent standard errors when using the "spm" command in SemiPar package? Suppose the original command is sp1<-spm(y~x1+x2+f(x3), random=~1,group=id) Any suggestion would be greatly appreciated. Thanks, Susan

[R] gradient fill of a grid.polygon

2009-06-26 Thread baptiste auguie
Dear list, Following a recent enquiry, I've been playing with the idea of creating a colour gradient for a polygon, using the Grid package. The idea is to draw a number of stripes of different colours, using the grid.clip function. Below is my current attempt at this, library(grid) rotate.polyg

Re: [R] (performance) time in Windows vs Linux

2009-06-26 Thread Zeljko Vrba
On Fri, Jun 26, 2009 at 12:23:35PM -0700, Cézar Freitas wrote: > > I supposed R on Linux should be faster (32 and 64 bit) than windows version. > Is this difference because 64 bit R version is slower than 32 bits one? I > started the machine in both sittuations and checked free memory. > I susp

[R] Automatically placing a legend in an area with the most white space...

2009-06-26 Thread Jason Rupert
At one point I believe I heard of an R package that would automatically find the most empty space in a plot, and then that answer could then be used to intelligently place a legend. I would like to try to apply that R package to the contrived example shown below, so thank you for any hints

[R] 50993 point distance matrix, too big to as.matrix, looking for another way to calculate point-level summary

2009-06-26 Thread leif olson
Hello, Im working on a 50933 point count bird abundance dataset. I've succeeded in calculating a distance matrix for this entire set, but I don't have sufficient memory to convert this to a matrix, as below... abun.dist <- dist(abun.mat[1:50993,1:235) test <- rowMeans(as.matrix(abun.dist)) Error in

[R] (performance) time in Windows vs Linux

2009-06-26 Thread Cézar Freitas
Hi, all. I began to migrate my R codes from Windows to Linux and surprised me with an old question. I simplified the problem and made a little test to compare times at same computer and the Linux time is worse (not so little) than Windows time: 28 vs 53 seconds. I make an example (below) to faci

Re: [R] Indexing a list with a list

2009-06-26 Thread Henrique Dallazuanna
You have four elements in ind and three elements in example, then, try this mapply('[', example, ind[1:3]) On Fri, Jun 26, 2009 at 3:27 PM, Greg Hirson wrote: > Dear list, > > I have two lists: one with data and one with TRUE/FALSE values for data I > want to further analyze (see example below)

Re: [R] Indexing a list with a list

2009-06-26 Thread Greg Hirson
Jim, Thank you for your help. I had a feeling it would be an apply function that could help. Kind regards, Greg jim holtman wrote: Your example has one more element in 'ind' than 'example' and that is what causes the error, but this should be close. > #sample data > set.seed(100) > examp

Re: [R] Indexing a list with a list

2009-06-26 Thread jim holtman
Your example has one more element in 'ind' than 'example' and that is what causes the error, but this should be close. > #sample data > set.seed(100) > example = list(letters[1:10], letters[1:10], letters[1:10]) > ind = list(as.logical(sample(0:1, 10, rep=TRUE)), +as.logical(sample(0:1

[R] Indexing a list with a list

2009-06-26 Thread Greg Hirson
Dear list, I have two lists: one with data and one with TRUE/FALSE values for data I want to further analyze (see example below). I have been able to use a for loop to extract the data that I want to keep, but think that there probably exists a way to do it without a loop. Any ideas? #sample

Re: [R] parallel R?

2009-06-26 Thread David M Smith
On Fri, Jun 26, 2009 at 8:28 AM, Michael wrote: > I guess when we move to Amazon AWS, > > we have to rewrite the whole R programs? Not necessarily. I use foreach (currently available in our REvolution R Enterprise distribution and coming very soon to CRAN), and test out the parallel code on my dua

[R] 95% confidence interval coverage

2009-06-26 Thread Seunghee Baek
Hi R-users, I would like to compute 95%CI coverage for each bootstrapped sample. But, I don't know how to get 95% CI of estimate for each bootstrapped sample. I could only see the estimate of each bootstrapped sample. Thanks, Becky __ R-help@r-project.

Re: [R] panel.text and saving to pdf

2009-06-26 Thread Deepayan Sarkar
On Fri, Jun 26, 2009 at 1:53 AM, Dieter Menne wrote: > Willem Vervoort usyd.edu.au> writes: > >> I am not sure what I am doing wrong, but I have some unexplained behaviour > when saving a lattice graph >> including text to a pdf file. The text seems to move around. It must have > something to do w

[R] R: Deleting repeated rows

2009-06-26 Thread Guazzetti Stefano
?unique as an example > mat<-matrix(c(1,2,3,1,1,2,1,2,3,4,7,5), ncol=3, byrow=T) > mat #rows 1 and 3 are identical [,1] [,2] [,3] [1,]123 [2,]112 [3,]123 [4,]475 > unique(mat) [,1] [,2] [,3] [1,]123 [2,]112 [3,]4

Re: [R] Optimization and Linear Programming in R

2009-06-26 Thread Greg Snow
One option is to use optim with method='SANN' which is simulate annealing. The parameter vector is your vector of 0's and 1's, the fn argument is the function that you are trying to maximize with respect to the par vector (sounds like you have that pretty much worked out), then the gr argument

Re: [R] parallel R?

2009-06-26 Thread cls59
losemind wrote: > > > Moreover, at my PC level, I have a 4-core PC, is there anything we > could do in R to speed up my CV programs? > > I have seen one very nice paper that compared parallelization options for R: http://epub.ub.uni-muenchen.de/8991/ losemind wrote: > > > we have to re

[R] Deleting repeated rows

2009-06-26 Thread dreamworx
Appologies if this is a simple problem. I have a matrix which is 86x3 and each row contains three integers. The problem I have is that some of the rows of integers are repeated in other rows and I only wish to have one copy of these rows. Is there a function that I can use which will identify the

[R] calculate AIC

2009-06-26 Thread rongrongily1215
Dear all,   I want to calculate AIC values of PLSR models. But I find that AIC and extractAIC functions in R could not be used to calculate AIC values of PLSR models. Now I write a section of code(below) to calculate it. But I don't known whether the result is right or not. If I am wrong, plea

Re: [R] GeoXp package

2009-06-26 Thread epoizot
Hi, I resolved partially my problem, by adding the path of the grass library where is located libgrass_I.so. So I add the following line to my .bashrc file: export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr.lib/grass/lib Now, I can install and load rgdal and GeoXp libraries from R. Thanks for your he

Re: [R] Placing text outside graph boundary

2009-06-26 Thread Greg Snow
If you are using base graphics: Create an outer margin using something like: par(oma=c(0,0,3,0)) Then use mtext with the outer argument to place the text in the outer margin. Hope this helps, -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 8

Re: [R] Determining if swap memory is turned off

2009-06-26 Thread John C Frain
On windows XP | start | Control Panel | System | Advanced | Performance | Settings | Advanced | Virtual Memory | and select No Pagefile. I suspect Vista is similar. John 2009/6/26 Prof. John C Nash : > In order to run some performance tests on optimization tools, I want to be > able > to avoid t

Re: [R] Converting S-plus project folders to R

2009-06-26 Thread Uwe Ligges
Bosley, David wrote: Thanks for the reply. Sometimes R does crash (quits completely). Other times, it just hangs after giving an error box with some sort of exception code, even though it looks like it's still trying to execute the data.restore. - Hmmm, that should not happen. Can you genera

Re: [R] How to create separate plots for all combinations of some factors

2009-06-26 Thread David Winsemius
You did not supply any executable examples for testing, but perhaps you could benefit by looking at: ?expand.grid ?tapply Those to split or index your data "for all combinations of factors". ?mapply # to do the plotting. On Jun 26, 2009, at 9:54 AM, Lane, Jim wrote: Hi, All I have a d

[R] Determining if swap memory is turned off

2009-06-26 Thread Prof. John C Nash
In order to run some performance tests on optimization tools, I want to be able to avoid the use of swap memory. In *nix systems, at least Linux ones, I can issue a 'sudo swapoff -a' command and use just the RAM available. If I don't do this, at some point swap will be used, the disk goes balli

[R] Modifying Sweave.sty to allow escapes with fancyvrb package in LaTeX

2009-06-26 Thread Frank E Harrell Jr
Dear Colleagues: In an attempt to have things like # See page \pageref{this} inside comments in R code chunks I have modified Sweave.sty as below. I have followed fancyvrb's manual with regard to the use of the commandchars argument. But when compiling with LaTeX (using attached test file) I

Re: [R] parallel R?

2009-06-26 Thread Michael
I guess when we move to Amazon AWS, we have to rewrite the whole R programs? On Fri, Jun 26, 2009 at 8:05 AM, Dirk Eddelbuettel wrote: > > On 26 June 2009 at 07:40, Michael wrote: > | Hi all, > | > | Lots of big IT companies are renting out their computing facilities. > | Amazon has one such serv

Re: [R] Converting S-plus project folders to R

2009-06-26 Thread Bosley, David
Thanks for the reply. Sometimes R does crash (quits completely). Other times, it just hangs after giving an error box with some sort of exception code, even though it looks like it's still trying to execute the data.restore. -Original Message- From: Uwe Ligges [mailto:lig...@statistik.t

Re: [R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread Gabor Grothendieck
Here is a similar solution using strapply in gsubfn. The pattern matches non-spaces, [^ ]+, followed by a space followed by non-spaces followed by end-of-string, $. > library(gsubfn) > strapply(a, "[^ ]+ [^ ]+$", simplify = c) [1] "L*H H%" "H* H%" "L*H %" "L*H %" On Fri, Jun 26, 2009 at 7:21 A

Re: [R] parallel R?

2009-06-26 Thread Dirk Eddelbuettel
On 26 June 2009 at 07:40, Michael wrote: | Hi all, | | Lots of big IT companies are renting out their computing facilities. | Amazon has one such service. In my understanding, this will | dramatically improve the speed of my R program -- currently the cross | validation and model selection part i

Re: [R] Matching data to a new column

2009-06-26 Thread Luc Villandre
Hi Laura, The function merge() works well, but another elegant to do it would involve match(). (Assuming your data.frame object is called x) x$motherAge <- with(x, age[match(mothers.I.D,I.D)]) Cheers, -- *Luc Villandré* /Biostatistician McGill University Health Center - Montreal Children's

Re: [R] changing the loss function in the logistic regression?

2009-06-26 Thread Frank E Harrell Jr
Michael wrote: Hi all, Is there a way to change the loss function in the logistic regression? Or we could provide a customized loss function in the logistic regression so we could use that loss function in the Cross Validation in logistic regression? Thanks a lot! The goal is to use a loss fu

[R] Anova with multiple responses without loop

2009-06-26 Thread Sungeun Kim
Hello, I have one question about Anova in car package. Here is my situation: I have a response matrix (Y), consisting of 7 different responses for a group of subjects, 2 categorical factors (A, B), 3 covariates (C,D,E). I would like to know the main effects of 2 factors and the interaction be

[R] R 2.9.1 is released

2009-06-26 Thread Peter Dalgaard
I've rolled up R-2.9.1.tar.gz a few hours ago. This is a maintenance release and fixes a number of mostly minor issues. See the full list of changes below. You can get it from http://cran.r-project.org/src/base/R-2/R-2.9.1.tar.gz or wait for it to be mirrored at a CRAN site nearer to you. Bina

Re: [R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread Stavros Macrakis
One way is: a <- c(" %L H*L L*H H%", "%L H* H%", "%L L*H %", "%L L*H %" ) > sub("^.*(^| )([^ ]+ [^ ]+$)","\\2",a) [1] "L*H H%" "H* H%" "L*H %" "L*H %" Just be aware that this is not terribly efficient for very large strings. -s On Fri, Jun 26, 2009 at 7:21 AM, Fredrik Karlsson

[R] parallel R?

2009-06-26 Thread Michael
Hi all, Lots of big IT companies are renting out their computing facilities. Amazon has one such service. In my understanding, this will dramatically improve the speed of my R program -- currently the cross validation and model selection part is the bottle neck. It take a few days to just finish o

[R] changing the loss function in the logistic regression?

2009-06-26 Thread Michael
Hi all, Is there a way to change the loss function in the logistic regression? Or we could provide a customized loss function in the logistic regression so we could use that loss function in the Cross Validation in logistic regression? Thanks a lot! __

Re: [R] Calculating distance between spatial points

2009-06-26 Thread Ian Fiske
If your goal is to get the distance between geographic points, you might try computing the distance along the "great circle arc" and forget about projection. Several packages have functions that do this. See https://stat.ethz.ch/pipermail/r-help/2007-October/144546.html. hope that helps, Ian

Re: [R] crr - computationally singular

2009-06-26 Thread Ravi Varadhan
How did you determine that you have "full rank" model matrix comprising 17 predictors? Are you able to invert the model matrix using `solve'? If not, you still have collinearity problem. If you are, then the problem might be in the Newton's method used by `crr' to solve the partial-likelihood o

Re: [R] predicted values after fitting gamma2 function

2009-06-26 Thread David Winsemius
On Jun 25, 2009, at 11:30 PM, Steven Matthew Anderson wrote: Question: after fitting a gamma function to some data, how do I get predicted values? I'm a SAS programmer, I new R, and am having problems getting my brain to function with the concept of "object as class ...". The following i

Re: [R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread Fredrik Karlsson
HI Jim, Thank you! Works perfectly. /Fredrik On Fri, Jun 26, 2009 at 1:00 PM, jim holtman wrote: > This should do it > >> a <- c(" %L H*L L*H H%", "%L H* H%",  "%L L*H %",   "%L L*H %" ) >> # split the strings >> x <- strsplit(a, ' ') >> # get last two tokens >> sapply(x, function(.tokens) paste

Re: [R] Matching data to a new column

2009-06-26 Thread John Kane
x <- "I.D age 'MID' 01 5 03 02 6 06 03 16 NA 04 8 06 05 3 NA 06 17 NA" xx <- read.table(textConnection(x), header=TRUE); xx closeAllConnections() ag1 <- xx[, c(1,2)] ; ag1 ag2 <- xx[, c(1,3)] ; ag2 names(ag2[2]) <- "I.D" merge(ag1,ag

[R] How to create separate plots for all combinations of some factors

2009-06-26 Thread Lane, Jim
Hi, All I have a data frame as follows: > data.class(tapes) [1] "data.frame" > names(tapes) [1] "date""loc" "class""drp" "data""scratch" "reclaim" "total" Date is a date; loc, class and drp are factors; the rest are numerics. I want to generate separate plots by date for t

Re: [R] what happened to the xlsReadWrite package

2009-06-26 Thread Andrew Yee
Thanks for the detailed clarification. Perhaps the page here http://cran.r-project.org/web/packages/xlsReadWrite/ could include these explanations as well. I imagine I'm not the only user with these questions! Thanks, Andrew On Fri, Jun 26, 2009 at 2:48 AM, Prof Brian Ripley wrote: > On Fri, 26

Re: [R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread John Kane
I have the feeling that this is a very clumsy way to do it but I think it does what you want. = a <- c(" %L H*L L*H H%", "%L H* H%", "%L L*H %", "%L L*H %" ) mylist <- strsplit(a," ") pick <- function(x) {tail(x,2) } unlist(pick(m

Re: [R] Deleting repeated rows

2009-06-26 Thread Etienne B. Racine
dreamworx wrote: > > Appologies if this is a simple problem. I have a matrix which is 86x3 and > each row contains three integers. The problem I have is that some of the > rows of integers are repeated in other rows and I only wish to have one > copy of these rows. > > Is there a function that

Re: [R] How to avoid ifelse statement converting factor to character

2009-06-26 Thread Craig P. Pyrame
Stavros Macrakis wrote: It gives me a headache, too! I think you'll have to wait for a more expert user than me to supply explanations of these behaviors and their rationales. Thanks, Stavros. I hope someone with expertise will shed more light on this, and in the meantime I'll try to lear

[R] Optimization and Linear Programming in R

2009-06-26 Thread R P Herrold
On Fri, 26 Jun 2009, Liviu Andronic wrote: There is `solnp', part of the "Integer and Nonlinear Optimization in R (RINO)" project [1]. It is still in early beta, though. [1] http://r-forge.r-project.org/projects/rino/ I do not find it at the indicated location on: http://r-forge.r-pro

Re: [R] crr - computationally singular

2009-06-26 Thread Laura Bonnett
But I have centred all the dummy variables for the covariates... 2009/6/26 David Winsemius : > Still the same reasons. It is possible to have collinearity without having > any one column be a multiple of another. > >> xyz <- data.frame(x=sample(1:1000, 5), y=sample(1:1000, 5) , >> xx=sample(1:1000

Re: [R] The Claw Density and LOCFIT

2009-06-26 Thread Mark Difford
Hi Jaap, >> Could anybody please direct me in finding an updated version of this >> document, or help me >> correct the code given in the file. The (out-of-date) code is as follows: You are not helping yourself, or anyone else, by not including the error messages you get when trying to execute "

Re: [R] crr - computationally singular

2009-06-26 Thread David Winsemius
Still the same reasons. It is possible to have collinearity without having any one column be a multiple of another. > xyz <- data.frame(x=sample(1:1000, 5), y=sample(1:1000, 5) , xx=sample(1:1000, 5) ,yy=sample(1:1000, 5) ) > xyz$z <- xyz$x + xyz$y + xyz$xx > solve(xyz) Error in solve.defaul

Re: [R] apply on xts

2009-06-26 Thread David Winsemius
The way to get the best answers on r-help (and the method advised in the Posting Guide) is to offer the audience a specification of the libraries being used, to create examples that illustrate the sort of input expected, to offer the code that is being used, and to clearly specify what ou

Re: [R] to raise in a loop more than 1

2009-06-26 Thread jim holtman
I assume that you are getting this error: > mydata=matrix(nrow=1500,ncol=3) > i=1 > for(x in 0:10){ + for(y in 0:20){ + for(z in 0:10){ + mydata[i,]=c(x,y,z) + i=i+1 + z=z+2} + y=y+4} + x=x+2} Error in mydata[i, ] = c(x, y, z) : subscript out of bounds No suitable frames for recover() > i [1] 1501

Re: [R] How to avoid ifelse statement converting factor to character

2009-06-26 Thread Stavros Macrakis
It gives me a headache, too! I think you'll have to wait for a more expert user than me to supply explanations of these behaviors and their rationales. -s On 6/26/09, Craig P. Pyrame wrote: > Stavros Macrakis wrote: >> On Thu, Jun 25, 2009 at 12:47 PM, Craig P. Pyrame >> wrote: >>

Re: [R] to raise in a loop more than 1

2009-06-26 Thread Rau, Roland
Dear Damien, > -Original Message- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of damien landais > Sent: Friday, June 26, 2009 11:16 AM > To: R-help@r-project.org > Subject: [R] to raise in a loop more than 1 > > I would raise x,y and z in a loo

Re: [R] Optimization and Linear Programming in R

2009-06-26 Thread Hans W Borchers
csiro.au> writes: > Dear List, > > [...] > > We are looking for a solver that can deal with this nonlinear integer > programming problem. We looked at a number of packages on the CRAN Task > View: Optimization and Mathematical Programming, however, we have not > been able to locate one that

Re: [R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread jim holtman
This should do it > a <- c(" %L H*L L*H H%", "%L H* H%", "%L L*H %", "%L L*H %" ) > # split the strings > x <- strsplit(a, ' ') > # get last two tokens > sapply(x, function(.tokens) paste(tail(.tokens, 2), collapse=' ')) [1] "L*H H%" "H* H%" "L*H %" "L*H %" > > On Fri, Jun 26, 2009 at 7:21

[R] How do I get just the two last tokens of each string in a vector?

2009-06-26 Thread Fredrik Karlsson
Dear list, Sorry for asking this very silly question on the list, but I seem to have made my life complicated by going into string manipulation in vectors. What I need is to get the last part of a sting (the two last tokens, separated by a space), and of course, this should be done for all strings

Re: [R] Optimization and Linear Programming in R

2009-06-26 Thread Liviu Andronic
Hello, On 6/26/09, chris.wil...@csiro.au wrote: > We are looking for a solver that can deal with this nonlinear integer > programming problem. We looked at a number of packages on the CRAN Task > View: Optimization and Mathematical Programming, however, we have not been > able to locate one

Re: [R] Matching data to a new column

2009-06-26 Thread Dieter Menne
Kubasiewicz, Laura imperial.ac.uk> writes: > I have a dataframe with columns for... > > 'I.D' 'age' 'mothers I.D' > 01 5 03 > 02 6 06 > 03 16 NA > 04 8 06 > 05 3 NA > 06 17 NA > > I need to create a new column for 'mothers age' which put

[R] Matching data to a new column

2009-06-26 Thread Kubasiewicz, Laura
Hi all, I wonder if anyone can help, I have a dataframe with columns for... 'I.D' 'age' 'mothers I.D' 01 5 03 02 6 06 03 16 NA 04 8 06 05 3 NA 06 17 NA I need to create a new column for 'mothers age' which puts the age of the individua

[R] The Claw Density and LOCFIT

2009-06-26 Thread Van Wyk, Jaap
I am trying to reproduce Figure 10.5 of Loader's book: Local Regression and Likelihood. The code provided in the book does not seem to work. I have managed (a while ago) to get the accompanied R-code for the figures in the book (file called lffigs.R) from somewhere - cannot find it on the web an

Re: [R] How to avoid ifelse statement converting factor to character

2009-06-26 Thread Craig P. Pyrame
Stavros Macrakis wrote: On Thu, Jun 25, 2009 at 12:47 PM, Craig P. Pyrame wrote: The man page Stavros quotes states that the class attribute of the result is taken from 'test', which clearly is not the case: Actually, the behavior is documented pretty clearly: The mode of the ans

Re: [R] GeoXp package

2009-06-26 Thread Roger Bivand
The problem is that the binary Ubuntu install of gdal has not made sure that its dependencies are properly satisfied, so you'll need to do this manually. You can also make sure that the directory the GRASS libraries are found in is seen by ldconfig, either that or making sure that your running R s

Re: [R] JRI - problem to access "stats" package

2009-06-26 Thread Geoff Gibbs
Sorry for the confusion, I obviously misunderstood. I thought you were trying to use R in an eclipse application, not an application written using eclipse. As far as I am aware, if the path and R_HOME environment variables are set then all should work OK. I think from you examples that the path

[R] Odp: code that will use two data sets which differ in size.

2009-06-26 Thread Petr PIKAL
Petr Pikal petr.pi...@precheza.cz 724008364, 581252140, 581252257 r-help-boun...@r-project.org napsal dne 26.06.2009 05:31:27: > Hi all, > > This is a really basic question but I can't figure it out. > > I am trying to write a piece of code that will use two datasets, z and m.. > This code i

Re: [R] crr - computationally singular

2009-06-26 Thread Laura Bonnett
Dear Sir, Thank you for your response. You were correct, I had 1 linearly dependent column. I have solved this problem and now the rank of 'covaeb' is 17 (qr(covaeb)$rank = 17). However, I still get the same error message when I use covaeb in the 'crr' function. > fit=crr(snearmb$with.Withtime

Re: [R] panel.text and saving to pdf

2009-06-26 Thread willem vervoort
Hi Uwe, I should send these messages from my member e-mail number Thanks for that. As you can see from the last bit of my code, I tried that, but it gave the same results. I had a look at pdf.options() but didn't see anything there either to make the text stay on the same spot. It seems to also h

[R] Odp: to raise in a loop more than 1

2009-06-26 Thread Petr PIKAL
Hi does expand.grid(z=seq(0,6,2), y=seq(0,8,4), x=seq(0,10,2)) do what you want? Petr r-help-boun...@r-project.org napsal dne 26.06.2009 11:15:42: > I would raise x,y and z in a loop but I won't raise of 1. I tried this but it > doesn't work > > mydata=matrix(nrow=1500,ncol=3) > i=1 > for(

[R] JRI - problem to access "stats" package

2009-06-26 Thread GRAN
Hi Geoff, Tks a lot for your reply. There are many points we do not understand. Can you clarify those one: - At first, why do you speak about an eclipse plugin ? We have compiled R and JRI together, so we get a jar file. We finally include this jar file inside our java project as a referenced li

[R] to raise in a loop more than 1

2009-06-26 Thread damien landais
I would raise x,y and z in a loop but I won't raise of 1. I tried this but it doesn't work mydata=matrix(nrow=1500,ncol=3) i=1 for(x in 0:10){ for(y in 0:20){ for(z in 0:10){ mydata[i,]=c(x,y,z) i=i+1 z=z+2} y=y+4} x=x+2} And I would have something like that x y z 0 0 0 0 0 2 0 0

Re: [R] panel.text and saving to pdf

2009-06-26 Thread Dieter Menne
Willem Vervoort usyd.edu.au> writes: > I am not sure what I am doing wrong, but I have some unexplained behaviour when saving a lattice graph > including text to a pdf file. The text seems to move around. It must have something to do with the way > coordinates are set in devices other than jpg. >

Re: [R] panel.text and saving to pdf

2009-06-26 Thread Uwe Ligges
To get reproducible results, I highly recommend to print the lattice graphics directly into the desired device, i.e. start the pdf >(or jpeg or whatever) device before printing. Best, Uwe Ligges Willem Vervoort wrote: Dear all, I am not sure what I am doing wrong, but I have some unexplain

Re: [R] multiple figure windows

2009-06-26 Thread Uwe Ligges
Nattu wrote: Hi, Is it possible to plot in multiple windows. for example Figure 1 in one window and Figure 2 in seperate window simultanously ? Sure, just start another device as in: x11() plot(1:10) x11() plot(1:10) Uwe Ligges thanks, Nataraju __

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