[R-sig-ME] graphics to show crossed random-effects

[Thierry Onkelinx]

Dear Simon,

I think you need to plot the crossed random effects on different axes to
illustrate their independence. E.g. the first on the x-axis, the second on
the y-axis and the density on the z-axis.

Best regards,

ir. Thierry Onkelinx
Statisticus / Statistician

Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE AND
FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkelinx using inbo.be
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www.inbo.be

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Op do 16 jul. 2020 om 20:34 schreef Simon Harmel <sim.harmel using gmail.com>:

> Good afternoon,
>
> Given lme4 package in R, I often show a random-intercept model (i.e., y~1 +
> (1|grouping)) using a picture like:
> https://github.com/hkil/m/blob/master/mlm.PNG.
>
> I wonder how to extend this picture to show a fully crossed
> random-intercepts model of the form: y~1 + (1|grouping_1) + (1|grouping_2)
> ?
>
> Specifically, do I need to have 2 red, level-2 distributions (side-by-side)
> each for showing the random intercepts of each grouping_j and if so, is
> there any way to show the "crossing*"* of the two random-effects in the
> picture?
>
> Many thanks,
> Simon
>
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>
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