Re: [R] question including crossover trials in meta-analysis

Dear mr. Schwartz and mw Gunter, Thank you both for your reply. I did google but did not find these sources, so thank you. With kind regards, Vera Belgers Van: Bert Gunter Verzonden: maandag 14 september 2020 21:14 Aan: Belgers, V. (Vera) CC: r-help@R

[R] question including crossover trials in meta-analysis

conduct a meta-analysis and forest plot of the parallel trials using the dmetar package, but I did not succeed in including the crossover trials. I do have the raw data of most of these crossover trials. Does anybody know how to add crossover trials to the meta-analysis? With kind regards, Vera

Re: [R] Modèle à Equations structurelles

Dear Yaya; I hope that you can understand english. I think that R package pls( about partial least squares) and/ or lavaan( about structural equation modeling between other things) can help you. Enviado do Correio para Windows 10 De: yaya bamba via R-help Enviado: 10 de maio de 2018 16:07 Para

[R] [help] reduce the bit depth of a png file

8 LSB (irrelevant for display purposes but possibly relevant for use of PNG in signalprocessing if the input is truly 16-bit wide)." However, I end up with a 24-bit file again :( Anybody has an idea of how to proceed? Thank you, Vera [[alternative HTML versi

[R] help

Dear R I have a big problem in my estimation process, I try to estimate my likelihood function with the option "optim", but R give me this message "Error en optim(par = valores$par, nlogL, method = "BFGS", hessian = T, : valor inicial en 'vmmin' no es finito " I know this is because my initia

[R] Multivariate tobit regression

Dear R-users, I would like to run a multivariate tobit model in R. Is there any package available to perform this task? Best regards, Printil [[alternative HTML version deleted]] __ R-help@r-project.

[R] Merge rows

Hello all, I have a data frame filled with senders and recipients. Some of the senders have multiple rows with different recipients and I want to merge those rows. For example I have a...@email.com b...@email.com a...@email.com c...@email.com d...@email.com r...@email.com f...@em

[R] What is SE and how do you calculate it in svymean()?

Hello all, I have been experimenting with svymean() and I am confused on what the output is. The data I have looks like: *PSU* * STRATUM* *WEIGHTS* * COUNTS* *1* 1 1 2.0 1 *2* 2 1 1.0 1 *3* 3 1 1.0 1 *4* 3 1 2.5 1 *5* 2 1 1.0 1

[R] Understanding svymean

Hello all, I am trying to understand how svymean is calulated with svydesign. I have the code: dstrat1<-svydesign(id=~PSU, strata=~STRATUM,weights=~Sample_Weight, data=subset25k, nest=TRUE) and I am using svymean to compute the mean. My main question is how are the sampling probabilities create

[R] Understanding survey design (svydesign)

Hi all, I am trying to understand the output of the svydesign function. My question is, is there documentation on how the probabilities are computer? Or could someone please explain to me how they are? I have this d<-svydesign(id=~PSU, strata=~STRATUM,weights=~w, data=s, nest=TRUE) And this o

Re: [R] Problem with "dea.boot" under R 3.0.1

really a bug of R 3 or of the dea.boot package. Best, Vera -- View this message in context: http://r.789695.n4.nabble.com/Problem-with-dea-boot-under-R-3-0-1-tp4669964p4673420.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r

Re: [R] Problem with "dea.boot" under R 3.0.1

... we used the following syntax: b.x1a.y1<-dea.boot(x1a,y1,NREP=1000,RTS="vrs", ORIENTATION="in") Vera -- View this message in context: http://r.789695.n4.nabble.com/Problem-with-dea-boot-under-R-3-0-1-tp4669964p4670271.html Sent from the R help mailing lis

[R] Problem with "dea.boot" under R 3.0.1

ficiencies. In the past, we have used "boot.fear" and this never delivered any negative bias-corrected efficiencies. Is this a bug of dea.boot or of R 3.0.1? How can we solve this? Thanks and best regards, Vera -- View this message in context: http://r.789695.n4.nabble.com/Probl

[R] Bug or misunderstanding of par(pin)?

anybody know how I could get this type of plot in an easy way? Thank you very much, Vera PS: in case it is not clear what I mean with "plotting region", please check page 6 of the following document http://www.stat.auckland.ac.nz/~paul/Talks/Rgraphics.pdf

[R] Tukey Type III SS vs Type I SS

Hi. I was looking for help on how to use Tukey multiple comparison on Type III SS because I read on Quick R that it is using Type I SS by default. I am wondering if the use of glht helps. Thanks for help. Vera __ R-help@r-project.org mailing

[R] Multiple factorial comparison LSD

Please help. I really like R and I have been looking at how to do LSD multiple comparison test with data that has more than one factor. So far, I am unsuccessful. Please help! Me __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/list

Re: [R] weighting (survey) data

2010/1/16 Thomas Lumley : > On Sat, 16 Jan 2010, Vera wrote: > >> Thanks for your help so far, everyone. >> >> Thomas: I haven't looked very deep into the survey package yet, so I >> don't know if what I'm looking for is actually missing or if I just

Re: [R] weighting (survey) data

ation (Cramer's V), factor analysis, linear regression. I've used SPSS so far and thus haven't ever had to look very deep into what 'weighting' means, exactly. Vera 2010/1/16 Thomas Lumley : > On Fri, 15 Jan 2010, vivi ane wrote: > >> is there a function in R equ