similar to: interactive session

Dear R-help-list I have two character vectors a <- c("A", "B", "C") b <- c("A", "C", "B") Then sapply(a, function(i) grep(i, b)) computes the permutation of the entries in 'b' needed to bring 'b' into the same order as 'a'. I have searched around, but haven't been able to find any existing function

Dear R-help list, Sorry to trouble everyone. This seems like it could be achieved with a single command (? variant of apply), but I am not quite seeing it. I am trying to multiply one vector (a1 below) by corresponding values in a3 (as determined by matching element in a vector a2). The example below might be clearer. a1 <- c(4,3,4,6,8,9,2,3,4,6,7,4) a2 <-

The ez package was developed to aid those that are new to statistical programming. Over the course of several years of helping colleagues and students learn R, I observed that folks are often initially turned off R because they have difficulty obtaining SPSS-like results quickly (SPSS is the dominant environment in my field, psychology). ez attempts to fill this gap, providing quick and easy

The ez package was developed to aid those that are new to statistical programming. Over the course of several years of helping colleagues and students learn R, I observed that folks are often initially turned off R because they have difficulty obtaining SPSS-like results quickly (SPSS is the dominant environment in my field, psychology). ez attempts to fill this gap, providing quick and easy

i just found the following list, i wondered if anybody could add to this as i have to characterize a large data set and am new to R...the list below was so helpful....can you add to this??? Just to forestall confusion amongst those who would like to use one of the functions called "describe"... Hmisc package - describe numeric name count of observations count of missing

Hello all, I came across a behavior of R with environments that I'm not sure what is causing it. It involves changing variables that are found through using model.frame on a formula inside a function. I wonder if it's a "bug" or a "feature". And in either case, how it might be managed. Here is a simple example: # let's say we have an x and y variables: temp_x

Dear all, This problem came up initially while debugging a function, but it seems to be a more general problem of R. I hope I'm wrong, but I can't find another explanation. Let me illustrate with the raster package. For an object "RasterLayer" (which inherits from Raster), there is a method xyValues defined with the signature

Hi all I was playing with termplot(), and came across what appears to be an inconsistency. It would appreciate if someone could enlighten me: > # First, generate some data: > y <- rnorm(100) > x <- runif(length(y),1,2) > # Now find the log of x: > logx <- log(x) > > # Now fit two models that are exactly the same, but specified differently: > m1 <-

This is some interesting: > -8^(1/3) [1] -2 > x=(-8:8) > y=x^(1/3) > y [1] NaN NaN NaN NaN NaN NaN NaN NaN 0.000000 1.000000 [11] 1.259921 1.442250 1.587401 1.709976 1.817121 1.912931 2.000000 So, can anybody explain this?! (Why is x[1]^(1/3)=y[1]=NaN, but -8^(1/3)=-2?) Thx!!! [[alternative HTML version deleted]]

Dear All Working along in R (Emacs {Aquamacs}, ESS ) usually I am getting a long R buffer with many rows. To reduce its length, I used to select backwards and delete those unnecessary rows. Now I cannot do that, only C-k allows single lines to be deleted. the mode line says 'Text is read-only *R*>'. Both R and ESS are up to date. Aquamacs 3.3 GNU Emacs 25.1.1

In the Value section of the 'seq' help page it says 'seq_along' and 'seq_length' always return an integer vector. I believe it should be 'seq_along' and 'seq_len' always return an integer vector. as there are no seq_length function? Best, Niels -- Niels Richard Hansen Web: www.math.ku.dk/~richard Associate Professor

I use the very nice expm functions available from the expm and Matrix packages. My understanding is that for large sparse matrices the currently best methods available are Krylov subspace methods, but they are as far as I can tell not implemented in either of the packages mentioned, nor in any other R package I have found. Does anybody know if Krylov subspace methods are available from any R

Hi, sorry for bothering, but I suspect the start of M-x R within Aquamacs is causing my problems: *Scrolling* is *not possible*, neither by key stroke nor by mouse. Aquamacs does not show all windows. 'Prefences', 'About A.', 'Check fo updates' will not open. Menu 'windows' shows several windows, but clicking on them will not open their buffers. Also,

All, Apologies if this was already answered... I couldn't find an answer that specifically addressed Mac OS instead of either windows or linux. I use "aquamacs emacs" as my text editor. It is essentially Xemacs with a GUI that looks closer to standard Mac GUIs, as far as I can tell. I installed the GUI-friendly Mac version of R. I can have R choose the aquamacs as the editor

I''m very new to Ruby and RoR, have been trying to get it working with no success. I''m on Ubuntu, installed Rails correctly, run scripts for model, controller and scaffold no problem, installed fcgi which now appear in apache header. When I point browser to http://localhost/tada/public/category I get: Not Found The requested URL /tada/public/category was not found on this server.

hello, I am trying to find where filtering is done in order to drop packets randomly there (eg.10%of them) for a testing purpose in a school project. I want to do this after packet is filtered and before being sent. I d aprreciate if you could help or suggest. Thanks.

I''m a newbie to emacs trying to set up emacs Rails on a clean emacs installation. I''m using Aquamacs: http://aquamacs.org/. Basically, I''ve gotten to the part where I have to install the cedet package to install ECB to install Rails to ? you get the idea. I''ve forgotten all of my feeble Linux commands and have no idea what I need to do to install the packages,

Dear R-developers I came across the following issue, which I find strange: setClass("A", representation(a = "numeric")) B <- list() myA <- new("A", a = 1) B$otherA <- myA B$otherA at a <- 2 myA at a Assigning a new value to slot 'a' in the _copy_ of myA stored in B$otherA changes the original value of myA -- this was surprising to me, and I

hello, how can I do to drop C from this character "C325" ? _____________________________________________________________________________ [[alternative HTML version deleted]]

Dear R developers Using the 'foreach' package I encounter warnings like Warning message: In identical(.combine, cbind) : ignoring non-pairlist attributes Warnings appear once in a new R-session when I run a particular piece of code - and not again. I understand from the source code of 'identical' that the function checks and believes that .combine and cbind have non-pairlist