[R-sig-ME] extracting name of random slope from mer object

[ONKELINX, Thierry]

You could do something like this

sapply(VarCorr(model), colnames)

or when you have only one grouping level

colnames(VarCorr(model)[[1]])

Best regards,

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-sig-mixed-models-bounces op r-project.org [mailto:r-sig-mixed-models-bounces op r-project.org] Namens Daniel Ezra Johnson
Verzonden: donderdag 25 juli 2013 15:54
Aan: R Mixed Models
Onderwerp: [R-sig-ME] extracting name of random slope from mer object

Hello,

I can extract the name(s) of random intercept variable(s) with this command:

> names(VarCorr(model))

Is there any easy way to extract the names of random slope variables?
I can't find it anywhere in str(model).

Thanks a lot,
Dan

P.S. I know I could compare the list of all variables, e.g.

> names(model.frame(model))

with the headings inside e.g. ranef(model), and match it up that way, but I was wondering if there was anything easier.

Also, I can't use model op call because I'm calling lmer() out of another function!

        [[alternative HTML version deleted]]

_______________________________________________
R-sig-mixed-models op r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
* * * * * * * * * * * * * D I S C L A I M E R * * * * * * * * * * * * *
Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document.
The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document.