similar to: Batch replacement, by factor, of values in a data frame

Dear List, I have a data set stored in the following format: > head(dat, n = 10) id sppcode abundance 1 10307 10000000 1 2 10307 16220602 2 3 10307 20000000 5 4 10307 20110000 2 5 10307 24000000 1 6 10307 40210000 83 7 10307 40210102 45 8 10307 45140000 1 9 10307 45630000 1 10 10307 45630600 41 >

Dear List, A student in the Department where I work would like to produce a graphic similar to this one: http://image.guardian.co.uk/sys-files/Guardian/documents/2009/09/16/Public_spending_160909.pdf Does anyone know if the figure in the pdf can be generated in a specific software application for example? Any suggestions would be most gratefully received by the student concerned. Many thanks,

Dear List, Further to my earlier email, I note that, for me at least, R CMD check is *not* reading R_LIBS from ~/.R/check.Renviron on R 2.15.2 patched (r61228) and R Under Development (r61660). The only way I can get R CMD check to look for packages in a user-supplied library is by explicitly exporting R_LIBS set to the relevant directory. R CMD build *does* read R_LIBS from ~/.R/build.Renviron

Dear List, Having had my appetite sufficiently whetted by Prof. Ripley's email about the new graphics capabilities in Unixes, I wanted to try them out. I updated to svn r44608, configured with the following options: R is now configured for x86_64-unknown-linux-gnu Source directory: .. Installation directory: /usr/local C compiler: gcc -O3 -g -std=gnu99

Dear list, There is, I believe, a minor typo in the example section of influence.measures.Rd. In the final example the word `does` appears where I suspect `dose` is required: I couldn't remember exactly what format patches should be in, so here is one as diff would produce: Index: devel/src/library/stats/man/influence.measures.Rd

Dear List, I have hit this problem with using a plotmath expression in an axis label on a lattice plot I'm including in a Sweave document. The actual document is far too long and boring (unless you are interested in the hydrochemistry of upland lakes) to include here, but the following minimal example reproduces the problem; basically, the PDF produced by Sweave has missing characters in the

Dear list, On Fedora 8 I downloaded the beta version of R via svn. make and make check-all worked fine, but make vignettes is failing with: make[1]: Entering directory `/home/gavin/R/2-7-patched/build/src/library' building/updating vignettes for package 'grid' ... processing 'displaylist.Snw' /usr/bin/texi2dvi: pdflatex exited with bad status, quitting. Error in

Hi, I find it a bit annoying that aggregate.default forces the returned object to loose the 'name' of the variable aggregated, replacing it with 'x'. A brief example: > dat <- data.frame(A = runif(100), B = rnorm(100), + Group = gl(4, 25)) > with(dat, aggregate(A, by = list(Group = Group), FUN = mean)) Group x 1 1 0.6523228 2 2

Dear List, I'm having considerable trouble setting up my environment (Linux, Fedora 16, Bash) to build and check packages under R Under Development (r61660). I'm doing this to better get a handle on difference in the output from running checks on examples in one of my packages. Note I compiled R Under Development myself The problem I am now having is whenever I try to build my analogue

Dear List, I'm not even sure this is an issue or not, but ?rowMeans has: Value: A numeric or complex array of suitable size, or a vector if the result is one-dimensional. The ?dimnames? (or ?names? for a vector result) are taken from the original array. If there are no values in a range to be summed over (after removing missing values with ?na.rm = TRUE?), that

Dear List, A posting to R-Help exposed this problem with the print method for objects of class Arima: > set.seed(1) > x <- arima.sim(n = 100, list(ar = 0.8897, ma = -0.2279)) > mod <- arima(x, order = c(1,0,1)) > coefs <- coef(mod) > mod2 <- arima(x, order = c(1,0,1), fixed = coefs) > mod2 Call: arima(x = x, order = c(1, 0, 1), fixed = coefs) Coefficients: Error

Dear List, In one of my packages on R-Forge I have a custom panel function for Lattice graphics. In the Rd file for this panel function I want to provide links to some lattice functions (in package lattice). My first instinct was to use: \code{\link[lattice]{panel.xyplot}} for example. However, I missed a few references to lattice functions and just marked them up as \code{\link{panel.xyplot}}.

Dear list, Fully according to the documented behaviour, I was bitten by apply() simplifying results to vectors or arrays when the lengths of the individual objects returns by FUN are the same (over simplification). sapply() has argument simplify with default TRUE to control whether it attempts to simplify the returned objects or not. I do find it a little annoying that one is not able to force

Dear List, I have a problem I'm finding it difficult to make headway with. Say I have 6 ordered observations, and I want to find all combinations of splitting these 6 ordered observations in g groups, where g = 1, ..., 6. Groups can only be formed by adjacent observations, so observations 1 and 4 can't be in a group on their own, only if 1,2,3&4 are all in the group. For example,

Dear list, I have been using and testing the alpha/betas of R 2.4.0, sources for which I got from svn.r-project.org/R/branches/R-2-4-branch, and which I compiled on my Fedora Core 5 machine. No problems there. I have just updated the source tree today and re-compiled - which also works just fine. When run, this gives: R version 2.4.0 Patched (2006-10-03 r39576) So I assume from that, that I am

Dear List, There seems to be an bug in compactPDF() or at least an inconsistency with the documented behaviour. The documentations states: Details: This by default makes use of ?qpdf?, available from <URL: http://qpdf.sourceforge.net/>, including a Windows binary. If ?gs_cmd? is non-empty, GhostScript is used. I don't have qpdf on my system so planned to use

hits=-2.6 tests=BAYES_00 X-USF-Spam-Flag: NO Dear List, Say I have the following sequence of dates [*]: start <- as.Date("2005-01-05", format = "%Y-%d-%m") end <- as.Date("2007-10-07", format = "%Y-%d-%m") my.dates <- seq(start, end, by = "days") What I would like to generate is a sequence of dates, by month that goes from the first

Dear r-Community, Step1: I would like to calculate a NMDS (package vegan, function metaMDS) with species data. Step2: Then I want to plot environmental variables over it, using function envfit. The Problem: One of these environmental variables is cos(EXPOSURE). But for flat releves there is no exposure. The value is missing and I can't call it 0 as 0 stands for east and west. Therefore I

Dear List, I am writing a formula method for a function in a package I maintain. I want the method to return a data.frame that potentially only contains some of the variables in 'data', as specified by the formula. The problem I am having is in writing the function and wrapping it around model.frame. Consider the following data frame: dat <- data.frame(A = runif(10), B = runif(10), C

Dear list, I have a function whose first argument is '...'. Each element of '...' is a data frame, and there will be at least 2 data frames in '...'. The function processes each of the data frames in '...' and returns a list, whose components are the processed data frames. I would like to name the components of this returned list with the names of the original data