similar to: Why my lapply doesn't work with FUN=as.Date

Hi All, I am iterating through dated materials, with variable start and end dates, and would like to skip procedures everytime I encounter a weekend or holiday. To do this, I thought the easiest way would be to create a TRUE/FALSE vector corresponding to each day where it is TRUE if a workday, and FALSE if a weekend or holiday. So far I have been able to do this for weekdays: startDate <-

Dear R-users! I am using R 1.7.0, under Windows XP. Having some hospital discharge data (admission date and discharge date for each patient), I want to get the number of patients in the hospital on a given date. My data look like (simple example): > x <- data.frame(patid=c("pat1", "pat2"), adm.date = c("15.03.2002", "16.03.2002"),

Hi, So now that the OpenBSD buildslave has been upgraded with enough memory to allow the build to finish I have noticed some issues with the test framework and was wondering if anyone could comment on what has shown up and/or anyone who is familiar with the framework could provide patches to fix the issues. For sed and head the tests are using command line options which are not specified by

Hi r-users,   I would like to compare the cdf between historical and predicted. My x.obs and x.pre are the frequency data in classes of 0-300. I tried: plot(ecdf(x.obs),ecdf(x.pre),type="l",col="red")   and it gives me: Error in plot.stepfun(x, ..., ylab = ylab, verticals = verticals, pch = pch) :   argument 4 matches multiple formal arguments   Thank you so much for any

I just noticed a certain ``usage'' in a recent posting, and couldn't restrain my self from commenting. The usage was of the form ``if(X==TRUE)'' where X was a logical variable. This sort of thing is brought to you by your Department of Redundancy Department. The ``==TRUE'' bit is irrelevant, incompetent, and immaterial, as Perry Mason used to say. The value of

On 07/10/17 12:16, Peter Wagey wrote: > Hi R users, > I was struggling to put the results into table format. Would you mind to > show using following data and code how we can put the results into table? I > further would like to have a confidence interval for each group. > > > set.seed(1000) > data <- as.data.table(list(x1 = runif(200), x2 = runif(200), group = >

Hello everybody, I've got a bit of a problem with parLapply that's left me scratching my head today. I've tried this in R 2.11 and the 23 bit Revolution R Enterprise and gotten the same result, OS in question is Windows XP, the package involved is the snow package. I've got a list of 20 rain/no rain (1/0) situations for these two stations i and j, all the items in this list look

It's probably toadally elementary (and, like, duhhhhh) but I can't figure out why the following doesn't work: curve(function(x){qnorm(x,4,25)},from=0,to=1) I get the error: Error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ But if I do foo <- function(x){qnorm(x,4,25)} curve(foo,from=0,to=1) it goes like a train. Also

Suppose I have a nx2 matrix of data, X, the following code generate density estimation for each column and plot them denlist <- apply(X, 2, density) par(mfrow=c(1,2)) lapply(denlist, plot) Does anyone know how to change the main title of each density plot to "var 1", "var 2" by passing optional argument "main"? I've tried lapply(denlist, plot,

Hello everyone, I wonder if there is a way to pass the index or name of a list to a user-specified function in lapply(). For instance, my desired effect is something like the output of > L <- list(jack=4098,sape=4139) > lapply(seq(along=L),function(i,x) if(i==1) "jack" else "sape",x=L) [[1]] [1] "jack" [[2]] [1] "sape" >

I have an application where jquery fullcalendar is implemented. On day click I need to pass the selected date as params to rails controller. When I alert the date inside dayclick function, I am getting the date in the format of "Tue Oct 30 2012 12:40:20 GMT+0530 (IST)".. But when I pass as params in jquery ajax to rails controller, it is passing blank. How do I get it in rails

I previously posted about this problem on the r-help list, but was told that I should switch over to the r-sig-fedora list. So here goes: When trying to do a plot in a certain context I got an error: Error in text.default(2, 6, main, cex = cex) : X11 font -adobe-helvetica-%s-%s-*-*-%d-*-*-*-*-*-*-*, face 1 at size 16 could not be loaded This is reproducible (in my current environment)

Hi R users, I was struggling to put the results into table format. Would you mind to show using following data and code how we can put the results into table? I further would like to have a confidence interval for each group. set.seed(1000) data <- as.data.table(list(x1 = runif(200), x2 = runif(200), group = runif(200)>0.5)) data.frame(data) head(data) stat <- function(x, i) {x[i, c(m1

Tried to do a plot just now and got an error: Error in text.default(2, 6, main, cex = cex) : X11 font -adobe-helvetica-%s-%s-*-*-%d-*-*-*-*-*-*-*, face 1 at size 16 could not be loaded This is reproducible (in my current environment) via: par(mfrow=c(2,2)) plot(1:10) text(2,6,"Oh, hell!",cex=2) This is of course not the real context in which the error originally manifested

Dear All, I have a matrix in which the diagonal has the string "Inf" in it. In order to be able to do cluster analysis this needs to be replaced with a Zero. I can do this by putting it into Excel, replacing and putting it back into R but it's tedious, and I am sure there is a simple way to do it in R. If you have the route to do this, it would be much appreciated. Best wishes Nick

Hi R People: I'm teaching a statistical computing class using R starting next week (yay!) and I have an opinion type question, please. I'm old school and use "<-" in an assignment. However, I'm starting to see the "=" in the literature. Which should I use or does it matter, please? Thanks for your input! Sincerely, Erin -- Erin Hodgess Associate Professor

http://bugs.freedesktop.org/show_bug.cgi?id=15433 Summary: swfdec can't play videoegg files from this site Product: swfdec Version: 0.5.5 Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: plugin AssignedTo: swfdec at lists.freedesktop.org

Hello all, I have searched and have not yet identified a solution so now I am sending this message. In short, I need to split my data into training, validation, and testing subsets that keep all observations from the same sites together ? preferably as part of a cross validation procedure. Now for the longer version. And I must confess that although my R skills are improving, they are not so

Hello, when doing a simple search through the lucene indexes in some mailboxes (with actually many subfolders) the search terminates after a few seconds with no result and the dovecot log shows this error: Fatal: master: service(imap): child 15433 killed with signal 6 (core not dumped) Any clue about the reasons? the lucene indexes have been already rebuilt and look OK. Regards -federico

Dear All I'm having problem with some script which worked a few months ago (on a different computer that might well have had a different version of R installed, so perhaps it has to do with the old version of R?): library(reshape) Loading required package: plyr > tble.data <- melt.array(interp, varnames=c("tme","lon","lat")) > > allyrs.interp <-