You need to learn to execute one statement at a time in order to debug this yourself. Copy and paste is your friend. Hint: I already told you that the data function is inappropriate if the data does not come from a package.
You should be learning to use the str(), head(), and ls() functions to explore your R in-memory environment, and use the built-in help system with the question mark ("?str") or the help.search() and RSiteSearch() functions. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. Yasmine Refai <y_re...@hotmail.com> wrote: >hello, > >please advice what is wrong at the below syntax: >"Trial<-read.table("Trial.txt",header=TRUE) >Trial >save.image(file="Trial.RData") >data(Trial) >fit<-logistf(data=Trial, y~x1+x2) >" > >and here is the error I get: >"Warning message: >In data(Trial) : data set ‘Trial’ not found >" > >regards, >yasmine > > >> Date: Fri, 28 Jun 2013 10:29:21 +1200 >> From: rolf.tur...@xtra.co.nz >> To: jdnew...@dcn.davis.ca.us >> CC: y_re...@hotmail.com; r-help@r-project.org >> Subject: Re: [R] Data Package Query >> >> On 28/06/13 04:47, Jeff Newmiller wrote: >> >> <SNIP> >> > A common error by beginners (which may or may not be your problem >in this case) is to create a variable called "data". Unfortunately this >hides the function named "data" and from that time forward that R >session doesn't work when you type example code that uses the data >function. >> >> <SNIP> >> >> This is simply not true. I believe it *used* to be true, sometime >> waaaaayyyy back, >> but hasn't been true for years. The R language is much cleverer now. > >> If there >> is a function "melvin()" somewhere on the search path and also a data >object >> "melvin" (earlier on the search path) then doing >> >> melvin(<whatever>) >> >> will correctly call the function melvin() with no complaints. The R >> language >> "can tell" by the parentheses that you mean the *function* melvin and > >> not the >> data object "melvin". >> >> E.g. >> >> data <- 42 >> require(akima) >> akima >> Error: object 'akima' not found >> data(akima) # No error message, nor nothin'! >> akima >> # The data set "akima" is displayed. >> >> All that being said it is ***BAD PRACTICE***, just in terms of >> comprehensibility >> and avoiding confusion, to give a data set set the same name as a >function >> (either built in, or one of your own). >> >> fortune("dog") >> >> is relevant. >> >> cheers, >> >> Rolf Turner >> > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.