similar to: extracting character values

Dear all,   i would like to count the number of times where I have combined occurrences of the categories of 2 variables.   For instance, in the dataframe below, i would like to know how many times each author (au1, au2, au3 represent the first, second, third author) is associated with each of the category of the variable 'nam'. The position of the author does not matter.   nam <-

Dear all, I am working on an author network and to do so I have to arrange a data.frame (tutu) crossing author names (rows) per publication number (column). The participation of the author to a study is indicated by a 1 and 0 otherwise. I have a vector (xaulist) of all the names of authors and a data.frame (tata) with all the publications in row and the authors in columns. I have writen a loop

Dear All, I have a data frame of vectors of publication names such as 'pub': pub1 <- c('Brown DK, Santos R, Rome DF, Don Juan X') pub2 <- c('Benigni D') pub3 <- c('Arstra SD, Van den Hoops DD, lamarque D') pub <- rbind(pub1, pub2, pub3) I would like to construct a dataframe with only author's last name and each last name in columns and the

well, I had the site and page and I had added the relevant backport but it didn't work and i keep installing R 2.7 . Don't know why; i probably missed something. #### May be you should add in your mail the file : /etc/apt/sources.list (I suppose there might be a typo, as IT addresses are long and booring, and AFAIK, correcting a typo one made is **very** difficult). FYI binary installs

Dear R help list, I am modeling some survival data with coxph and survreg (dist='weibull') using package survival. I have 2 problems: 1) I do not understand how to interpret the regression coefficients in the survreg output and it is not clear, for me, from ?survreg.objects how to. Here is an example of the codes that points out my problem: - data is stc1 - the factor is dichotomous

Thanks for sharing the questions and responses! Is it possible to appreciate how much the coefficients matter in one or the other model? Say, using Biau's example, using coxph, as.factor(grade2 == "high")TRUE gives hazard ratio 1.27 (rounded). As clinician I can grasp this HR as 27% relative increase. I can relate with other published results. With survreg the Weibull model gives a

I''m a newbie attempting to get a custom fact distributed to clients. I''ve followed the instructions at http://reductivelabs.com/trac/puppet/wiki/AddingFacts and based my first fact on a simple recipe. I''m having at least one problem and possibly more. 1) Puppet/facter fails to load the custom fact, complaining that "non- sh interpreters are not currently

Hi, So far I've gleaned heaps of useful info from the list and got mostly running with NUT. There was a thread by Paul Battaglia and Kjell Claesson about the R3000 which has helped me get so far, but now with the patched driver I still have this on startup: # /usr/local/ups/bin/upsdrvctl start Network UPS Tools - UPS driver controller 2.0.5 Network UPS Tools - BCMXCP UPS driver 0.11

Hello, I'm trying to configure sieve plugin on my mail server so that people can do mail filtering (and mostly vacation notification) on their account. The mail server is running fine since 5 years and is based on :- sendmail- dovecot- roundcube It serves 2 differents domains. I've recently installed pigeonhole for fc17, and managed to configure managesieve plugin in roundcube

Hello, I am modeling some survival data wih cph (Design). I have modeled a predictor which showed non linear effect with restricted cubic splines. I would like to retrieve the se(coef) for other, linear, predictors. This is just to make nice LateX tables automatically. I have the coefficients with coef(). How do I do that? Thanks, David Biau. [[alternative HTML version deleted]]

Dear all, i have re-installed Debian on my computer and for some reason I cannot install some packages anymore using the install.package command from the R console. Some packages I can, and some I cannot (Design for instance) this is what I get: > install.packages('Design') Installing package(s) into ‘/usr/local/lib/R/site-library’ (as ‘lib’ is unspecified) --- Please select a CRAN

I'm desperate. My English is terrible, but I will try to be as clear as possible. I have Samba 4.4.4 in a Centos 7. I have many connections for each ip. The command smbstatus -b returns me infinity of these: Samba version 4.4.4 PID Username Group Machine Protocol Version Encryption Signing

Dear Help List, I am trying to install a package (DiagnosisMed) on R (R version 2.10.1 (2009-12-14)) on Debian Lenny (architecture i386). I get the following error message: ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~ * installing *source* package ‘DiagnosisMed’ ... ** R ** data ** preparing package for lazy loading Error in firstlib(which.lib.loc, package) : Tcl/Tk support is not available on this

Hello, I would like, if it is possible, to compare the effect of a variable across regression models. I have looked around but I haven't found anything. Maybe someone could help? Here is the problem: I am studying the effect of a variable (age) on an outcome (local recurrence: lr). I have built 3 models: - model 1: lr ~ age y = \beta_(a1).age - model 2: lr ~ age + presentation

I tried the following comm in Linux(Ubuntu), It works well: >set.seed(43);runif(3):rnorm(3) >set.seed(43);runif(3);rnorm(3) At 2011-03-26 19:00:05£¬r-sig-debian-request@r-project.org wrote: >Send R-SIG-Debian mailing list submissions to > r-sig-debian@r-project.org > >To subscribe or unsubscribe via the World Wide Web, visit >

2017-04-21 1:08 GMT-03:00 Epsilon Minus <theepsilonminus at gmail.com>: > 2017-04-21 0:38 GMT-03:00 Epsilon Minus <theepsilonminus at gmail.com>: >> >> >> I'm desperate. My English is terrible, but I will try to be as clear as possible. >> >> I have Samba 4.4.4 in a Centos 7. >> >> I have many connections for each ip. >> >>

I have a function that does some plotting. I then add lines to the plot. If executed one line at a time, there is not a problem. If I execute the function, though, I get: Error in ans[[1]] : subscript out of bounds This always occurs after the second lines command, and doesn't happen with all of my data points (some do not have errors). Any ideas? Thanks, Sean

Hi List, My goal is to force R not to print in scientific notation in the sixth column (rel_diff - for the p-value) of my data frame (not a matrix). I have used the format.pval () and printCoefmat () functions on the data frame. The R script is appended below. This issue is that use of the format.pval () and printCoefmat () functions on the data frame gives me the desired results, but coerces

Hi, by replacing 'll' with 'wh' in the source code for base::which() one gets ~20% speed up for *named logical vectors*. CURRENT CODE: which <- function(x, arr.ind = FALSE) { if(!is.logical(x)) stop("argument to 'which' is not logical") wh <- seq_along(x)[ll <- x & !is.na(x)] m <- length(wh) dl <- dim(x) if (is.null(dl)

Dear All, wonder if you have thoughts on the following: let us say we have: df<-data.frame(a=c(1,2,3,4,5,1,2,3,4,5,6,7,8),b=c(0,1,2,3,4,0,1,2,3,4,5,6,7)) I would like to rewrite values in column name "a" based on values in column name "b", where based on a certain value of column "b" the next value of column 'a' is prompted, in other words would like