similar to: lattice: adding information on number of observations

Dear R-users, I am working with R version 2.10.1. Say I have is a simple function like this: > my.fun <- function(x, mult) mult*sum(x) Now, I want to apply this function along with some other (say 'max') to a simple data.frame, like: > dat <- data.frame(x = 1:4, grp = c("a","a","b","b")) Ideally, the result would look something like

x.fun <- function( formula, data ) dotplot( formula, data ) x.grp <- function( formula, groups, data ) dotplot( formula, groups, data ) data( barley ) > x.fun( variety ~ yield | site, data=barley ) # no problem > dotplot( variety ~ yield | site, groups=year, data=barley ) # no problem > x.grp( variety ~ yield | site, groups=year, data=barley ) object "year" not found

Dear r-helpers! I have trouble reading data from an Oracle data base using RODBC Version 1.0-3, R Version 1.7.1, Windows XP, Oracle8 ODBC Driver Version 8.1.6.4.0: > library(RODBC) > channel <- odbcConnect(dsn="PAV32", case="oracle", believeNRows=FALSE) > # ok, this was succesful > x <- sqlTables(channel) > x[37, ] TABLE_CAT TABLE_SCHEM TABLE_NAME

Dear R users! I am using R Version 1.7.1, Windows XP, package "foreign" (Version: 0.6-1), SPSS 11.5.1. There is one thing I noticed with "read.spss", and I'd like to ask if this is considered to be a feature, or possibly a bug: When reading character columns, character strings seem to get filled with blanks at the end. Simple example: In SPSS, create a file with one

Dear R community, I am using function 'within' in R.2.9.1 to add variables to an existing data.frame. This works wonderful, except for one minor point: The new variables are added to the data in reverse order. For example: x <- data.frame(a = 1:3, b = 4:6) y <- within(x, { c = a^2 d = b^2 e = c+d } ) gives a b e d c 1 1 4 17 16 1 2 2 5 29 25 4 3 3 6 45 36 9

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"),

Dear R-users! I would like to search for "association rules" (and compute support and confidence, for example) in a data set, and wonder if this can be done with R (version 1.5.0 for Windows)? Particulary, I wonder if a) anyone has done something like that with R or b)maybe someone has written an R-interface to some existing algorithm/software (e.g. to something like the

Hello, I am working with R version 2.10.1 under windows. In a text file, I need to replace all characters at certain column positions with blanks. For example, say the file contains two lines and looks like this: ab34cd78e fg3 hi78j I'd like to replace everything at positions 3-4 and 7-8 with blanks, so the output should be: ab cd e fg hi j [I'm not sure if this is really an R

Hi, I'd like to add, say, the sample size for every group in a bwplot as a parenthetical annotation to the axis. Here's a sketch: --8<---------------cut here---------------start------------->8--- require(Hmisc) age <- sample(1:100, 1000, replace = TRUE) sex <- gl(2, 8, 1000, c("Male", "Female")) grp <- gl(4, 6, 1000, letters[1:4]) bwplot(grp ~ age |

Hello, does anyone have experience with reading SPSS Version 15.0 files into R (version 2.4.1, WinXP)? I have long been sucessfully reading SPSS files with read.spss from the wonderful foreign package, but somehow after upgrading from SPSS14 to SPSS15 I seem to have problems. Trying a simple example, where test.sav is a SPSS 15.0 data file consisting of x1=c(1,2,3) and

Dear R-community, using R.2.9.1, how do you put reference lines or grids into the _background_ of a plot? For example: barplot(3:1) abline(h = seq(0.5, 2.5 ,0.5), col = "red", lty = "dashed") -> The lines are before the bars (and the line parts going through the bars might be considered as "chart junk", I suppose). Now, in this toy example I could just do the

Dear R-people! I am using R 1.8.0, under Windows XP. While using ISOdate() and strptime(), I noticed the following behaviour when "wrong" arguments (e.g., months>12) are given to these functions: > ISOdate(year=2003,month=2,day=20) #ok [1] "2003-02-20 13:00:00 Westeurop?ische Normalzeit" > ISOdate(year=2003,month=2,day=30) #wrong day, but returns a value [1]

Dear R-users! I am using R 1.7.0, under Windows XP; I also have Internet Explorer 6.0.2600.0000, Norton AntiVirus 7.60.926. Our firewall seems to want to "protect" me from downloading precompiled packages for Windows. When I try to download packages, like http://cran.at.r-project.org/bin/windows/contrib/1.7/RODBC_1.0-3.zip for example, I am not allowed to and get a message like this:

Ok, one last try. R1.2.0, WinNT 4.0: [R is installed in: R_HOME=D:\Programme\R\rw1020] Can anyone give a hint what the following error message (when running Rcmd INSTALL) means and what to do about it? cd D:\Programme\R\rw1020\src\library D:\Programme\R\rw1020\bin\rcmd install testfunctions make: Entering directory `/cygdrive/d/Programme/R/rw1020/src/gnuwin32' dlltool -k --as as --dllname

Hi friends, I have a matrix with following format. group var1 var2 .......varN c1 group1 1.2399 1.4990....-1.4829 c2 group4 0.8989 0.7849.....1.8933 ... ... c100 group10 ..... I want to draw a profile plot of each condition c1 to c100, which rows in above matrix and each line representing a row should be uniquely colored according to the group(1 to 10). I think this is simple task

Dear R users, this is a question for R version 1.2.0 under Windows NT 4.0, regarding the documentation of ones own functions. I have ceated a private library for my functions, which works all very well, apart from that I am not able to create appropriate help files. For illustration, here is a simple example of where I'm stuck: > # first, create a simple function f1: > f1 <-

Hello I was wondering if it was possible to enter R commands from an external text file. If it is possible, it will be easy for repetetive tasks. Does anyone have an idea ? thanks in advance Ahmet Temiz TURKEY ______________________________________ ______________________________________ The views and opinions expressed in this e-mail message are ...{{dropped}}

Dear R community, I am using R 2.1.1 on Windows XP, package lattice Version 0.12-5, and want to add text (sort of a dat-stamp actually) to the lower left corner of a lattice plot, prefarably _after_ the plot has been created. Here is a simple example what I do in base graphics: # base graphics: > plot(rnorm(100), rnorm(100)) > mtext(as.character(Sys.Date()), side = 1,line = -2, outer = T,

Indeed, there is no file named "dlltool" anywhere around here! So, at last I am beginning to suspect that my collection of tools is incomplete. What I have got is "rw1020sp.zip" and "http://www.stats.ox.ac.uk/pub/bdr/RWin/tools.zip". These are properly istalled, I think. readme.packages says "If your package has no C nor Fortran nor C++ sources, see `Simple

Dear R users, using dotplot (R1.2.0, WinNT4.0), I am trying to change the character size of the labels of the points: > # example > data(VADeaths) > dotplot(VADeaths, main = "Death Rates in Virginia - 1940") > # I'd like to have smaller character size of the labels (for age and population groups) > ?dotplot > # for argument "cex", this says: