similar to: How to preserve date format while aggregating

Hi all, I want to plot the grouped means of some variables. The dependent variables and the grouping factor are stored in different columns. I want to draw a simple line-plot of means, in which the x-axis represents the variables and y-axis represents the means. The means of the groups should be connected by lines. So far, the only function that I could find comes closest to what I'm

Dear R-users, In a randomized placebo-controlled within-subject design, subjects recieved a psycho-active drug and placebo. Subjects filled out a questionnaire containing 15 scales on four different time points after drug administration. In order to detect drug effects on each time point, I compared scale values between placebo and drug for all time conditions and scales, which sums up to

Sorry, for asking the same question again, but I got no reactions the last time. Maybe it was just overseen by the experts. I'm using the xtable function with Sweave and Lyx and I would like to know how to get automatic line breaks for long strings in a column of the table. I've learned from the Lyx wiki that the Latex command \linebreak produces table cells with multiple lines. I tried to

Hi, I have the following problem with ggplot2: When I specify black contours for bars in a barplot, ggplot automatically shows diagonal lines in the legend boxes. Is there a way, to remove these diagonal lines? Here's a simple example: library(ggplot2) df<-data.frame(x=gl(6,1),y=rnorm(6,100,50)) ggplot(df,aes(y=y,x=x,fill=x))+geom_bar(aes(group=x),colour='black',size=1)+

Hello I would like to pass a model formula as an argument to the with.mids function from the mice package. The with.mids functon fits models to multiply imputed data sets. Here's a simple example library(mice) #Create multiple imputations on the nhanes data contained in the mice package. imp <- mice(nahnes) #Fitting a linear model with each imputed data set the regular way works

Hello everyone, I have a .csv file with the following format: uniqueID SubjectID Distance_miles Tag 1 1001 5.5 3 2 1001 7 1 3 1001 6.5 1 4 1001 5 1 5 1002

Hi, I am quite new to R and trying to analyze the following data. I have 28 controls and 25 patients. I measured X values of 4 different locations (A,B,C,D) in the brain image of each subject. And X ranges from 0 to 1. I think "control or patient" is a between subject factor and location is a within subject factor. So, controls: 28 patients: 25 (unbalanced data set) respone measure:

Last week (Wed 9/10/2003, "regression questions") I posted a question regarding the use of gnls( ) and its dissimilarity to the syntax that nls( ) will accept. No one replied, so I partly answered my own question by constructing indicator variables for use in gnls( ). The code I used to construct the indicators is at the end of this email. I do have a nagging, unanswered

Dear list, If have some repeated measurement data which looks something like: time <- rep(1:5 , each=2*4) groups <- rep(c("Case", "Control"), each=4) subjects <- factor(rep(1:(2*4), 5)) responses <- time + rnorm(5*2*4) + as.integer(factor(groups)) data <- data.frame(responses, time, groups, subjects) Now I want to plot each subject in a separate panel:

Hi, I have a set of 30 binary variables measuring side effects after drug treatment. Since each subject can have multiple side effects, I want to display these side effects in a multiple choice table. I'm using the summary and mChoice functions of the Hmisc package, because it produces nicely formatted latex tables. My problem is, that table includes a category for people who have at

Muchas gracias, Carlos. Sobre todo por el sqldf, que seguro me ahorre mucho tiempo. La opción que se plante de primero d <- table(tips$day) y luego dim(d) me parece menos eficiente y cómo que directamente sqldf("select count(distinct day) from tips"), pero supongo que esos son gustos! También son "cómodas" las líneas: aggregate(subjectid ~ cond, data = dat, FUN = function(x)

Hello Because I want to use different true type fonts with latex, I''m using the XeTeX typesetting engine for my sweave-documents. I''m using Lyx with Sweave on a Windows 7 PC and have set up LyX to work with XeTeX according to the following instructions: http://wiki.lyx.org/LyX/XeTeX Because the input file for XeTeX is assumed to be in UTF-8 encoding, I set the encoding

Estoy en 3.3.0 y "sqldf" lo instala sin problemas... El 23 de junio de 2016, 1:23, Mauricio Monsalvo <m.monsalvo en gmail.com> escribió: > Malas nuevas para mi: > package ?sqldb? is not available (for R version 3.3.0) > ¿Puedo hacer algo más que esperar? No me voy a "bajar" de versión de R. > > El 22 de junio de 2016, 20:02, Mauricio Monsalvo

Hello, I have been searching for ways to obtain these for combinations of fixed factors and levels other than the 'baseline' group (contrasts coded all 0's) from a mixed-effects model in lme. I've modelled the continuous variable y as a function of a continuous covariate x, and fixed factors A, B, and C. The fixed factors have two levels each and I'd like to know whether

Hello, I was fiddling with TableGen (for a use that has nothing to do with a compiler but it's doesn't matter) and TableGen triggers an assertion failure on this code (I reduced the case to the minimum, it's a parsing bug): class Bli<string _t> { string t = _t; } class Bla<list<Bli> _bli> : Bli<!car(_bli).t> { } #0 0x00007ffff6ebda75 in *__GI_raise

On Sep 1, 2010, at 4:35 AM, Amaury Pouly wrote: > Hello, > I was fiddling with TableGen (for a use that has nothing to do with a compiler but it's doesn't matter) and TableGen triggers an assertion failure on this code (I reduced the case to the minimum, it's a parsing bug): David, can you take a look? This is related to your lisp interpreter :) -Chris > > class

when i do print(date()) the output is [1] "Wed Sep 29 09:13:04 1999\n" ios it on purpose the the linfeed is shown as abbreviation and not done? -- Erich Neuwirth, Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-38624 Fax: +43-1-4277-9386 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-

Hello, I try this : in application_helper.rb ----------------------- def lnk bla return link_to bla, { :controller => bli , :action => "blo" , :id => "blu" } end in file.rhtml ----------- <%= lnk "yo!" %> This return an error. There is a way to do this or something similar, or this is completly impossible ? Thanks

Full_Name: Erich Neuwirth Version: 2.3.1 OS: Windows XP, Linux Submission from: (NULL) (131.130.135.167) Converting Sys.Date() to a POSIX compliant time type in different ways produces inconsistent results: > Sys.date() [1] "2006-09-01" > as.POSIXct(Sys.Date()) [1] "2006-09-01 02:00:00 CEST" > as.POSIXlt(Sys.Date()) [1] "2006-09-01" >

Hi all, How can I replace those "\" in the str? Thanks in advance. func <- function(str) { print(gsub("\\","",str)) } func("bla\ble\bli")