[R] How to create list of objects?

[Dimitris Rizopoulos]

try something like:

lapply(f, summary)
sapply(f, function(x) AIC(logLik(x)))


Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "Rainer M Krug" <rkrug at sun.ac.za>
To: "R help list" <r-help at stat.math.ethz.ch>
Sent: Tuesday, June 06, 2006 4:38 PM
Subject: [R] How to create list of objects?


> Hi
>
> I am doing several mle and want to store them in a list (or whatever 
> is
> the right construct) to be able to analyse them later.
>
> at the moment I am doing:
>
> f <- list()
> f$IP <- mle(...)
> f$NE <- mle(...)
>
> but when I say:
>> summary(f)
> I get:
>
>     Length Class Mode
> IP   0      mle   list
> NE   0      mle   list
>
> I don't get the output I would have, i.e. the one from
>> summary(f$IP)
> summary(f$IP)
> Maximum likelihood estimation
>
> Call:
> mle(minuslogl = IPNeglogPoisL, method = "L-BFGS-B", fixed = list(),
>    control = list(maxit = 1e+08, factr = 1e-20))
>
> Coefficients:
>      Estimate  Std. Error
> a 1242.0185506 44.92341097
> b    0.8802538  0.01685811
>
> -2 log L: 145.3509
>
>
> What I want to do is something like:
>
> AICs <- AIC(logLik(f))
>
> and then have all the AICs in the vector AICs.
>
> It must be possible or is this again a namespace issue?
>
> Rainer
>
> -- 
> Rainer M. Krug, Dipl. Phys. (Germany), MSc Conservation
> Biology (UCT)
>
> Department of Conservation Ecology and Entomology
> University of Stellenbosch
> Matieland 7602
> South Africa
>
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