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Advanced contrasts options
Posted: Thu Dec 12, 2019 9:52 am
by pandelis
Hi,
Do you know if the implementation of avanced contrasts options still planned or not? (this is still for me the missing feature to teach my ANOVA lectures with Jamovi).
https://github.com/jamovi/jamovi/issues/342
Best regards
Re: Advanced contrasts options
Posted: Thu Dec 12, 2019 9:56 am
by jonathon
hi,
yeah, i'm really sorry, it's probably not going to happen in the near future.
we'd love to do it, but ... well, so much to do, and so little time.
sorry i don't have better news.
jonathon
Re: Advanced contrasts options
Posted: Thu Dec 12, 2019 10:18 am
by pandelis
Thank you for your quick answer !
Aaah it's so sad... (but it's nice to know)
I also tried to implement classic ANOVA contrasts in regression (with one column for one contrast) but this seems not to work all the time...
Re: Advanced contrasts options
Posted: Thu Dec 12, 2019 10:19 am
by jonathon
oh, that should work ... if you don't think it's working the way it should, then do make a bug report.
with thanks
Re: Advanced contrasts options
Posted: Fri Dec 13, 2019 7:38 am
by Ravi
This was probably due to the default contrast being a simple contrast (fixing the intercept to the grand mean). However, in the latest version we let it default to a dummy contrast (fixing the intercept to the reference level) which is also the default in R and SPSS. So give it another try with the latest version.