similar to: using names inside a loop

Hi I have written a small function to calculate distances between pairs of landmarks ('my.dist' bellow). I gave it to a colleague that works with MSWindows and the function doesn't give the right answer: R 1.4.1 for Linux: > my.dist() [1] 22 561 R 1.4.1 for Windows: > my.dist() [1] 22 560 Warning message: Replacement length not a multiple of the elements to replace in

If you look at the structure, you'll see: > x$V4 <- 0 > str(x) `data.frame': 4 obs. of 4 variables: $ V1: int 1 2 3 4 $ V2: int 5 6 7 8 $ V3: int 9 10 11 12 $ V4: num 0 Don't know if this is the intended result. In any case, you're probably better off using data.matrix, as > data.matrix(x) V1 V2 V3 V4 1 1 5 9 0 2 2 6 10 0 3 3 7 11 0 4 4 8 12

Dear all Why isn'it possible to calculate Mahalanobis distances with R for a matrix with 1 row (observations) more than the number of columns (variables)? > mydata <- matrix(runif(12,-5,5), 4, 3) > mahalanobis(x=mydata, center=apply(mydata,2,mean), cov=var(mydata)) [1] 2.25 2.25 2.25 2.25 > mydata <- matrix(runif(420,-5,5), 21, 20) > mahalanobis(x=mydata,

Dear all I was writing some code that needed functions from packages 'MASS' and 'CircStats', and I received a warning saying that the function 'eqscplot' in one of the packages was masked by another 'eqscplot' from the other package (in fact 'eqscplot' from 'CircStats' seems a short version of 'eqscplot' from 'MASS'). This masking of

On Tue, 03 Oct 2000 10:55:28 +0000, Alberto Murta <amurta at ipimar.pt> wrote: > And objectively, it's a fact that "<-" >makes the code easier to read than "_". I don't follow this argument. Underscore isn't used anywhere else in the language, so when you see one, you know it's an assignment. On the other hand, both "<" and

> Date: Tue, 03 Oct 2000 14:45:32 +0000 > From: Alberto Murta <amurta at ipimar.pt> > > Duncan Murdoch wrote: > > > I don't follow this argument. Underscore isn't used anywhere else in > > the language, so when you see one, you know it's an assignment. On > > the other hand, both "<" and "-" have multiple other uses.

Dear all I have tried to estimate the confidence intervals for predicted values of a nonlinear model fitted with nls. The function predict gives the predicted values and the lower and upper limits of the prediction, when the class of the object is lm or glm. When the object is derived from nls, the function predict (or predict.nls) gives only the predicted values. The se.fit and interval aguments

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

Hi, I've just put together a new R syntax highlighting file for Nedit 5.3. I've borrow the "base" functions of Jedit (thanks to Tobias Elze and Zed A. Shaw) so now NEdit highlights a little more than before :) You can download the file here: http://ernesto.freezope.org/cmf/starthere/r/R-5.3.pats Just import it into NEdit with > nedit -import R-5.3.pats and save your

Hello, I' m trying to change the formula in the rpart function. The format of a general formula is Answer ~ expression, where Answer is the dependent variable and expression is set of terms containing the independent variables and separated by operators. I want the response of the formula is more than one dependent variable. It is possible?

> From: dmurdoch at pair.com (Duncan Murdoch) > Date: Tue, 03 Oct 2000 12:31:32 GMT > > On Tue, 03 Oct 2000 10:55:28 +0000, Alberto Murta <amurta at ipimar.pt> > wrote: > > > And objectively, it's a fact that "<-" > >makes the code easier to read than "_". > > I don't follow this argument. Underscore isn't used

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

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From: Peter Dalgaard > > <davidek at zla-ryba.cz> writes: > > > Dear all, > > > > I read.table a 17MB tabulator separated table with 483 > > variables(mostly numeric) and 15000 observations into R. > This takes a > > few seconds with R 2.3.1 on windows 2000, but it takes > several minutes > > on my Linux machine. The linux machine is

Dear R users, I want to share my joy with you. Please see the following excellent introduction to R "Statistiques avec R " by Vincent Zoonekynd http://zoonek2.free.fr/UNIX/48_R/all.html In paticular, you can see a lot of fascinating graphics examples of R from which you can get many hints. Soryy if this is already well-known, but the CRAN search did not show nothing with the keyword

I haven't found a function that directly calculates the matrix inverse, does it exist? Otherwise what would be the fastest way to do it? Patrik Waldmann -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the

I am trying to use the nlme package in R following the book "Mixed-Effects Models in S and S-Plus". I have the latest versions of R (1.6.1) and nlme (3.1-33) for Windows (95 or later). I had problems with the instruction Variogram using a gls class object (Section 5.4, pg 261-262). Even when I use the scripts included in the package, I get an error message and not the expected

Hi I'm doing a xyplot and I wand to reduce the number of tick marks in the x axis. My x axis are month and I want to reduce the 12 tick marks to 4. I used the scales argument but it doesn't seem to work, althougth it works on y axis if I use scales=list(tick.number=4).

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

Hi, This is the first time I've posted, and I apologize if I formulate this incorrectly. I am analyzing data from a multi-region carrot variety trial. 35 varieties of carrots were grown in 3 randomized complete blocks in organic and conventional fields in Wisconsin, Indiana, Washington, and California. In this example I am comparing the heights of the carrot tops at harvest. In other