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
>
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