search for: dtaa

Do I miss here something? dtaa = read.table("http://www.ats.ucla.edu/stat/mplus/examples/ma_snijders/mlbook1.dat", sep=",") head(dtaa) # shows the data as it should be save(dtaa,"dtaa",file="c:/dtaa") d = load("c:/dtaa") head(d) # all data is lost, it only shows [1]...

Hi I have a huge text file and .dat file from which I want to read data. I do not need all the columns in the files. I want to extract only some columns from the .txt file or the .dat file, because reading the entire file is becoming very difficult due to memory issues. Is it possible to extract a few columns from .txt or .dat file while reading the data in R? Thanks Upasna -- "The past

...pecify the values just as they are printed out in an output, like c(1, 1.3473, 1.0195). Or do I need to take the residual and multiply it with these like c(0.2235, 0.2235*1.3473, 0.2235*1.0195) or any other form that I dont know of? Thanks Toby Linear mixed-effects model fit by REML Data: dtaa AIC BIC logLik -788.783 -692.5656 409.3915 Random effects: Formula: ~timef - 1 | orgid Structure: General positive-definite, Log-Cholesky parametrization StdDev Corr timef1 0.04398482 timef1 timef2 timef2 0.07910354 1 timef3 0.03648411 1 1 Residual 0...

...e the R matrix that gls would report (V=ZGZ'+R). Added complexity is that I have 3 levels, so I have R, G and say H (V=WHW'+ZGZ'+R). The lme is giving me the correct results, I am having trouble finding the right corresponding specification for the gls. Thanks for your help. Toby dtaa = read.table("http://www.ats.ucla.edu/stat/mplus/examples/ma_snijders/mlbook1.dat", sep=",") dta1 = reshape(dtaa, list(c("V10","V12")), "score", direction="long", drop=c("V2","V3","V4","V5","...

...en moiblized and the 40 miels of seimsic wrok has commneced on the Big Cnayon Porspect trageting the eatsern Val Vedre Basni. The cerw satrted operaitons on Frdiay Jnue 2 2060. Tehy hvae been movnig oevr the terarin betetr tahn expecetd and the frist of there liens sholud be compleetd by wekes edn. Dtaa tehn wlil be snet off for procesisng taknig 3 to 4 wekes. The eastren Val Vrede Baisn is vieewd by idnustry epxerts as perahps one of the Lwoer 4'8s msot undere-xplored, prvoen gas provnices. Tarce Muarin, Presiednt of C a n t e x E n e r g y C o r p., statde, "hTe Val Vedre Baisn ofefrs...

Hi Reading the help for ?unz I was wondering if I can read data into R from within an zipfile that is on some website, like maybe: dtaa = read.table(unz("http://www.ats.ucla.edu/stat/examples/alsm/alsm.zip","Ch01pr19.dat")) Thanks for letting me know if you came acros such a thing before. Toby