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Hi all, Why subscripting a one column matrix drops one dimension? > x<- matrix(rnorm(100), ncol=1) > str(x) num [1:100, 1] -0.413 -0.845 -1.625 -1.393 0.507 ... > str(x[20:30,]) num [1:11] -0.315 -0.693 -0.771 0.448 0.204 ... > str(x[20:30]) num [1:11] -0.315 -0.693 -0.771 0.448 0.204 ... This breaks: > cov(x) [,1] [1,] 0.9600812 >

I am not yet a R user but I will be soon. I am looking for the R command and syntax to compute the roots of Bessel function i.e. computing the z values that lead to Jnu(z)=0 where J is a Bessel function or order nu. May You help me ? thanks in advance. Dr Catherine COUTAND Institut National de la Recherche Agronomique (INRA) umr Physiologie Int?grative de l'Arbre Fruitier et Forestier

Hello, I am using function lmodel2 to calculate RMA regression between life-history traits in ladybirds beetles. It works well but I am not able to plot an RMA regression line on the scatterplot of my data. I am of course unable to plot the confidence intervals. For ordinary least square regression abline(lm(x~y))works well but for RMA regression, abline(lmodel2(x~y))does not do it. If somebody

Hi all, I'm working out some Fortran code for which I want to compute the Choleski decomposition of a covariance matrix in Fortran. I tried to do it by two methods : 1) Calling the lapack function DPOTRF. I can see the source code and check that my call is correct, but it does not compile with: system("R CMD SHLIB ~/main.f") dyn.load("~/main.so") I get: Error in

Hi , I'm currently trying to make available a few fortran subroutines and R functions (which make interface to these subroutines), as an R package. I'm doing it under linux with R 1.9.0 (but hope to do it for windows too). I have trouble for loading my fortran code. Here are the steps involved : 1) In R: # Create tree for package

...as I can't insert multiple xlab's (x variable and A levels, or y variable and B levels) and can't decide which side to use for writing them. Does anybody have a hint ? Thank you very much ! -- Ir. Yves BROSTAUX Unit? de Statistique et Informatique Facult? universitaire des Sciences agronomiques de Gembloux (FUSAGx) 8, avenue de la Facult? B-5030 Gembloux Belgique T?l: +32 81 62 24 69 Email: brostaux.y at fsagx.ac.be

...ution (apply style) binding data-frames df and cas, but didn't succeed avoiding the for loop. Could anybody bring me the ligths over the darkness of my ignorance ? Thank you very much in advance. -- Ir. Yves BROSTAUX Unit?? de Statistique et Informatique Facult?? universitaire des Sciences agronomiques de Gembloux (FUSAGx) 8, avenue de la Facult?? B-5030 Gembloux Belgique T??l: +32 81 62 24 69 Email: brostaux.y at fsagx.ac.be

I would like to call C routines from Fortran under linux as suggested in section 5.6 of the "Writing R extensions" documentation. I'm familiar with Fortran but not with C. I understand the example provided in Fortran: subroutine testit() double precision normrnd, x call rndstart() x = normrnd() call dblepr("X was", 5, x, 1) call rndend() end but I don't understand

Hello, I've just compile R under solaris 7, everything went right, unfortunatly when I run R as a normal user it returns saying: $./R GUI `X11' is not supported However as root it works fine in text mode, that's what I want $./R R : Copyright 2000, The R Development Core Team Version 1.0.0 (February 29, 2000) R is free software and comes with ABSOLUTELY NO WARRANTY. You are

...aged to recreate such a plot using a script with layout(), axis() and so on, but I was wondering if there already exists a clean function for such a task, in case I would encounter this problem again ? -- Ir. Yves BROSTAUX Unit? de Statistique et Informatique Facult? universitaire des Sciences agronomiques de Gembloux (FUSAGx) 8, avenue de la Facult? B-5030 Gembloux Belgique T?l: +32 81 62 24 69 Email: brostaux.y at fsagx.ac.be

...ude [...] par.settings = list(horizontal=FALSE) [...] in the lattice plots arguments, but with no success. Is there a way to mix different page orientation in a single postscript device that I missed ? -- Ir. Yves BROSTAUX Unit? de Statistique et Informatique Facult? universitaire des Sciences agronomiques de Gembloux (FUSAGx) 8, avenue de la Facult? B-5030 Gembloux Belgique T?l: +32 81 62 24 69 Email: brostaux.y at fsagx.ac.be

Hi, I have a package of my own which seems to work fine under linux. I want to make a compiled version for windows. (I work with windows 2000 and R 2.0) I have followed the steps described in the file readme.packages (in the top-level directory of the binary installation) and I had a trouble at this step (which aim is not documented): C:\Program Files\R\rw2000\src\gnuwin32>make libR.a