Spencer, A number of times I've been wrecking my head trying to solve a problem, and when I thought I'd tried everything possible (all the docs that I can think of, web searches etc...) I start re-reading the posting guide (I've no idea how many times I've read it now)... and 9 times out of 10, the answer is there for me... :-)
Like yesterday... I had forgotten about the posting-guide (why Sean? why?) and I was trying to get windows to startup with a default entry for CRAN so I don't have to select *everytime*... which was starting to annoy me... a lot... eventually after running out of options I started down the posting guide route... and it turns out I've been starting using "--vanilla", so I turned that off and hey presto... it worked... :-) Takeaway... now I read the posting guide earlier in the problem solving process :-) cheers, Sean On 20/06/06, Spencer Graves <[EMAIL PROTECTED]> wrote: > I don't see enough information for me to diagnose the problem. If > it were my problem, I'd print out some assessment of the results of > every step you've described below. This should expose the step in which > things disappear. > > Hope this helps. > Spencer Graves > p.s. I almost never attach a data.frame. It can be done, but I just > find the mechanisms too subtle for my brain. I use "with" routinely, > but I know I can't include an assignment inside "with", because "with" > creates a frame and then discards it after it's done. Anything I > created inside "with" gets thereby discarded. > > p.p.s. If you'd like more help from this listserve, PLEASE do read the > posting guide! "www.R-project.org/posting-guide.html". People who > follow that posting guide seem more likely to solve their own problems > in the process of preparing a question for the listserve. If that > fails, they are more likely to get a useful reply quickly. Clean, crisp > questions sometimes generate a feeding frenzy of replies. Questions > that are harder to understand often get ignored. > > Bob Green wrote: > > Hello , > > > > I am hoping for some advice. I want to run a repeated measures ANOVA. The > > primary problem is that my attempt to remove missing values created a > > dataset of missing values. > > > > The data set consists of 92 rows (1 row per participant) x 186 variables. > > > > The steps of the analysis undertaken are outlined below (#). Any assistance > > is appreciated in relation to how to remove the missing values so the > > analysis is run. Feedback regarding the prior steps is also welcomed . > > > > Bob Green > > > > > > > > #Step 1 > > > > study1dat <- read.csv("c:\\study1.csv",header=T) > > attach (study1dat) > > > > outcome <- c(t1frq, t2frq,t3frq,t4frq) > > grp <- factor( rep(group, 2,length=368) ) > > time <- gl(4,92,length=368) > > subject <- gl(92,1,length=368) > > data.frame(subject, grp, time, outcome) > > > > # there are 3 missing values in $outcome > > > > #Step 2 - create a new data frame removing missing values from variable > > $outcome > > > > d2<-study1dat[!is.na(outcome),] > > > > #the previous step generates NA values. > > > > #Step 3 detach original data set & attach dataset without missing values > > detach(study1dat) > > > > attach(d2) > > > > The following object(s) are masked _by_ .GlobalEnv : time > > The following object(s) are masked from package:datasets > > : sleep > > > > #Step 4 run analysis > > > > library(nlme) > > anova(lme(outcome ~ grp * time, random = ~ 1 | subject)) > > > > #The data is the format below > > > > subject grp time outcome > > 1 1 0 1 4 > > 2 2 0 1 3 > > 3 3 0 1 7 > > 4 4 0 1 0 > > 5 5 0 1 1 > > 6 6 0 1 7 > > 7 7 0 1 7 > > 8 8 0 1 7 > > 9 9 0 1 7 > > 10 10 0 1 5 > > > > ______________________________________________ > > R-help@stat.math.ethz.ch mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > > http://www.R-project.org/posting-guide.html > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html