similar to: Base R: applying min/max functions() to character string vectors (PR#9428)

Full_Name: FAN Version: 2.4.0 OS: Windows Submission from: (NULL) (159.50.101.9) These are expected: > grep("[\-|c]", c("a-a","b")) [1] 1 > gsub("[\-|c]", "&", c("a-a","b")) [1] "a&a" "b" but these are strange: > grep("[d|\-|c]", c("a-a","b")) integer(0)

Full_Name: Xiao Gang FAN Version: 2.4.0 OS: Windows Submission from: (NULL) (159.50.101.9) > library(chron) > as.Date(as.POSIXct(strptime("1994-01-24","%Y-%m-%d"))) [1] "1994-01-23"

Full_Name: Fan Version: 2.2.1 OS: Windows Submission from: (NULL) (159.50.101.9) Hello, When I call trellis function (such as histogram, densityplot, etc.) in a function, the call seems being ignored (no graphics is drawing) if some other instructions are placed afeter that call. Here's an example: y = rnorm(100*3) b = sample(1:3,300,replace=T) f = function() { densityplot(~y|b) }

Full_Name: Xiao Gang FAN Version: R 2.0.0 OS: Windows Submission from: (NULL) (82.226.247.142) The following codes worked for R 1.9.1 > a = data.frame(x=1:2) > a$y = strptime(c("20010101","20020101"),"%Y%m%d") this no longer works for R 2.0.0: Error in "$<-.data.frame"(`*tmp*`, "y", value = list(sec = c(0, 0), min = c(0, :

Full_Name: Xiao Gang FAN Version: R 2.0.0 OS: Windows Submission from: (NULL) (82.226.247.142) When a package preload another necessary package, say Hmisc, seems that this last one must be precompiled, this is rather boring - we must rebuild all dependant packages ? Here's an error when compiling such a package: ---------- Making package toto ------------

The Design library has been fully ported to R except for Cox proportional hazards regression modeling (using Therneau's survival package) which will be available in about two weeks. It will take much longer to make all the example code executable, is it currently contains many examples for which data are not provided. Thanks to Xiao Gang Fan <xiao.gang.fan1 at libertysurf.fr> who

The Design library has been fully ported to R except for Cox proportional hazards regression modeling (using Therneau's survival package) which will be available in about two weeks. It will take much longer to make all the example code executable, is it currently contains many examples for which data are not provided. Thanks to Xiao Gang Fan <xiao.gang.fan1 at libertysurf.fr> who

Hi, I've read in the past a thead in the R discussion list about the multi-valued type variable (what was called checklist). At the moment Gregory had intention to add some general code in his gregmisc package. I'm wondering if there's some general code / packages available ? A general class for taking account this type of variable would be very useful in the domain of survey

I have uploaded to CRAN a new package named 'its' (Irregular Time-Series). It implements irregular time-series as an S4 class, extending the matrix class, and records the time-stamp of each row in the matrix using POSIX. Print, plot, extraction, append, and related functionality are available. Feedback and suggestions are welcome. Giles Heywood

I have uploaded to CRAN a new package named 'its' (Irregular Time-Series). It implements irregular time-series as an S4 class, extending the matrix class, and records the time-stamp of each row in the matrix using POSIX. Print, plot, extraction, append, and related functionality are available. Feedback and suggestions are welcome. Giles Heywood

I had this problem too. The documentation for the winMenus says that these functions are part of the utils package. R must be loading this library after it sources in Rprofile. If you add library(utils) to the beginning of your .First function, it should take care of the problem. Brian Gregor, P.E. Transportation Planning Analysis Unit Oregon Department of Transportation Brian.J.GREGOR at

After wasting one whole day, I've finally decided to stay with 1.9.1, some problems have been reported to R-Bugs. For occasional users, I would say, there's no worst thing than that: you installed the new release, and soem of your existing codes no longer work ! -- Fan

Hi All, As a part of our regular data analysis, I have to read in large data sets with six columns and about a million rows. In Splus, this usually take a couple of minutes. I just tried R, it seems take forever to use read.table() to read in the data frame! It did not help much even though I specified colClasses and nrows in read.table(). How is R's ability to analyze large data sets? I

Platform: Windows 98 R version: Version 1.6.1 (2002-11-01) Package 'tseries' version: 0.9-4 Built: R 1.6.0; Win32; Mon Oct 7 14:02:38 2002) (dependanted packages 'quadprog': Built: R 1.5.1; Win32; 2002-07-03 12:20:50) I've just upgraded to R 1.6.1. By typing library(tseries) example(garch) => I've got a crash with the following message: "RGUI a causé une

Platform: Windows 98 R version: Version 1.6.1 (2002-11-01) Package 'tseries' version: 0.9-4 Built: R 1.6.0; Win32; Mon Oct 7 14:02:38 2002) (dependanted packages 'quadprog': Built: R 1.5.1; Win32; 2002-07-03 12:20:50) I've just upgraded to R 1.6.1. By typing library(tseries) example(garch) => I've got a crash with the following message: "RGUI a causé une

Hello, all, I have a dataframe of three rows and umpteen columns. I want to show the maximum, minimum, and median with a vertical line and a central dot (I'd use a boxplot, but with only three data points, that's overkill; I can't just use points, because of overlap and some of the other data plotted on the graph). This works: > boxplot(data_frame,

All, Is there one liner way to obtain the max per observation for two vectors? I looked at apply and lapply but it seems that groundwork would have to be done before applying either of those. The code below does it but seems like overkill. Thanks! Dave x = rnorm(10) y = rnorm(10) ind = which(x < y) z = x z[ind] <- y[ind] ## z now contains the max's

Dear all, I have 3 matrices with the same dimension, A,B,C and I would like to produce a matrix D where in each position would retrieve the max(or min) value along A,B,C taken from the same position. I guess that apply functions should fit, but for matrices objects I am not getting it. thanks in advance, Diogo André Alagador [[alternative HTML version deleted]]

Full_Name: Xiao Gang FAN Version: 2.0.0 OS: Windows Submission from: (NULL) (82.226.247.142) After installing the new version 2.0.0 (downloaded binary), I've got 2 unexpected behavious vs 1.9.1: 1. When installing some packages from source, the making process stoped with the following message: ---------- Making package toto ------------ adding build stamp to DESCRIPTION making DLL

I have two variables in a data frame, I want to generate two additional variables. For every observations (i.e. every row), I want the first new variable 'min' to carry the minimum of the two existing variables, and I want the second new variable 'max' to carry the maximum of the two existing variables. I then want to sort the data frame by min and max, and delete duplicated rows