Hello,
When I run the below syntax:
Trial<-read.table("Trial.txt",header=TRUE)
Trial
save.image(file="Trial.RData")
load("Trial.RData")
fit<-logistf(data=Trial, y~x1+x2)
summary(fit)
AIC(fit)
I am getting the below error:
> AIC(fit)
Error in UseMethod("logLik") :
no applicable method for 'logLik' applied to an object of class "logistf"
Can you please help with that?
Regards,
Yasmine
> Date: Sat, 29 Jun 2013 05:05:28 -0800
> From: [email protected]
> Subject: Re: [R] Data Package Query
> To: [email protected]; [email protected]; [email protected]
> CC: [email protected]
>
>
> I don't know what you think data(Trial) is doing but what it in fact is doing
> is trying to load a stored data set called Trial and it does not exist. Have
> a look at ?data to see what I mean.
>
> In your program data(Trial) is redundant, well actually closer to
> meaningless.
>
> Trial is already loaded since you created it in the read statement
>
> John Kane
> Kingston ON Canada
>
>
> > -----Original Message-----
> > From: [email protected]
> > Sent: Fri, 28 Jun 2013 12:31:11 +0000
> > To: [email protected], [email protected]
> > Subject: Re: [R] Data Package Query
> >
> > 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: [email protected]
> >> To: [email protected]
> >> CC: [email protected]; [email protected]
> >> 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
> >>
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > [email protected] 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.
>
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