similar to: new version of "The R Guide" available on CRAN

R Community: In case you haven't seen it, I have written a manuscript called "The R Guide" that is available in the Contributed Documents section on CRAN. It is about 50 pages in length and it is written for the beginning R user. I use the guide in my undergraduate probability and math stat sequence, but it is pretty accessible for anyone with a basic understanding of statistics.

Hello, When plotting the results of a TukeyHSD multiple comparisons procedure with an ANOVA (lm) object, an extra line appears in the confidence intervals that contain 0. For example (this is straight from the TukeyHSD helpfile): > summary(fm1 <- aov(breaks ~ wool + tension, data = warpbreaks)) > TukeyHSD(fm1, "tension", ordered = TRUE) > plot(TukeyHSD(fm1,

Hello, A newly-revised version of my introductory manual "The R Guide" is now available in the Contributed Documents section in CRAN. Among other changes, the description of the function t.test() has been expanded as well as an introduction to methods for the creation of prediction and confidence intervals with regression. The manual is still under 60 pages in length. The current

Hello, I am considering giving a talk at my university on R to (mostly) academics. There wouldn't be any statisticians, but professors from mathematics, psychology, economics, etc. who do use some statistical software in teaching and/or research, and have an acquaintance with procedures and graphics used in statistics. Has anyone given such a talk to a similar audience? If so, I would be

Hello, Suppose I simulate 20 observations from the Poisson distribution with lambda = 4. I can summarize these values using table() and then feed that to barplot() for a graph. Problem: if there are empty categories (e.g. 0) or empty categories within the range of the data (e.g. observations for 6, 7, 9), barplot() does not include the empty cells in the x-axis of the plot. Is there any way to

R users, In S, there was a function called usa() that would draw the map of the United States, plus it had other options for graphics. I have looked but I can't find the equivalent in R. Is there one? Thanks, Jason

We run a dovecot mailserver. One of the clients I use is a Mac Laptop. Recently I upgraded from Mountain Lion (10.8) to Mavericks (10.9). Under 10.8 it worked fine. On 10.9 it syncs up when I invoke the client, but after a while stops getting updates. Most of my mail clients are on Linux (thunderbird) or Android (K9) and I admit that several run against my very large INBOX simultaneously. The

I run thunderbird (both 3.x and 5.x) against dovecot 2.x and frequently see delays "loading message". I admit to having a very large mailbox and running multiple imap clients. I've turned on thunderbird debugging, and at least one pattern I see in the log during the delays (maybe a minute long) is the failed protocol message above. These are no the only delays, but are the ones

Skipped content of type multipart/alternative-------------- next part -------------- An embedded message was scrubbed... From: "Sales Support" <sales@sellvoip.net> Subject: {100-1287} RE: DID"s Date: Tue, 18 Oct 2005 11:04:09 GMT Size: 1774 Url: http://lists.digium.com/pipermail/asterisk-users/attachments/20051018/7221e0af/attachment.eml

Hi, I'm looking for a function which returns the name of the argument object as a string: >vect <- 1:3 >function(vect) "vect" I've looked at 'name', 'names', 'objects', none seem to do exactly what I want. ls/objects comes close, but I can't figure out how to force it to give me only one object name. daver

Hi, suppose I do: b <- matrix(1:9,3,3) bname <- "b" now dim(b) returns [1] 3 3 and dim(bname) returns NULL is there a function to pass bname to such that dim returns the dimensions of b? like dim(somefunc(bname)) returns [1] 3 3 does 'somefunc' exist? daver +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It

Hi, I'm starting use the R Package and I have some .R scripts. How can I run these .R scripts. Conrado

Hi, Thanks in advance. I am not sure if my system is setup to use 'mbox' or 'maildir'. How do I find this out? I am running an OpenBSD (v3.5) box with an Intel P3 motherboard. I have installed the OpenBSD port of Dovecot (0.99.10) and have manually started dovecot and configured the ssl certificates as per the documentation. As far as I can tell there is no problems but I am

i am having some problems with a program that i am writing and i think that knowing how the while command works will help me to figure out where i am going wrong *when do you get kicked out of a while loop?* (i.e., in the following example what would the final value of 'a' be?) i thought it would be 99 but running it in R i get 101 (and 101 for x too!) while (x <100) { for (i in

Dear R users, Is there the possibitily in R under X11 to get (after typing help(...) command) separate help window, as it is in Windows version? Best wishes, ================================= Dr. Alexey B. Shipunov Section of Molecular Systematics Jodrell Laboratory Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3DS, U.K. e-mail: a.shipunov at rbgkew.org.uk

Dear R-helpers, can I use a POSIXct date as the x variable in interpSpline? The help page says x and y need to be numeric... is there a workaround? example: library(splines) testdfr <- data.frame(Date=seq(as.POSIXct("2008-08-01"),as.POSIXct("2008-09-01"), length=10)) testdfr$yvar <- rnorm(10) sp <- interpSpline(yvar ~ Date, testdfr) preddfr <-

Hi, Is there a function func(x) where x is an array such that it returns a list of the indices of all non-zero elements of the array? for example: a: 1 0 0 0 0 1 0 1 0 func(a) returns two vectors r and c: r c 1 1 2 3 3 2 daver +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It works on a | + Dept. of Sociology complex scientific

Hi Is there a command which will return the complete pathname of the file from which the current source is being read? I want something which can be inserted into any .r file and it will be able to ascertain exactly where it is, so that it can save data to the same directory, no matter where it is, regardless of what the current working directory is. Dave Richmond daver969 at mac.com

Hi, Is there a simple command to pause a script until the user hits return? Alternatively, is there a command which prompts the user for some input and assigns the input into a variable? dave +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |David Richmond It works on a | + Dept. of Sociology complex scientific + |Saint Mary's College

Dear R-helpers, when I have an R code chunk in a sweave file like this: <<>>= x <- 1:10 # this comment disapears x # this one does not! print(x) #mean mean(x) @ The first comment does not appear in the sweaved document, the second one does. How can this be? I have tried print=TRUE and keep.source=TRUE, but neither seem to affect this behavior. thanks, Remko