Advanced contrasts options

[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

[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

[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...

[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

[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.

[losses]

Made this plugin, will it be helpful?

https://github.com/Losses/SuperCode

It supports most code method, you select one column, and set the code you want, it will add multiple columns to your dataset for regression and automatically update when your data changes.

[jonathon]

drop us a line at contact <at> jamovi.org, if you're interested in adding this to the library.

good to review best practices here if you haven't already.

https://dev.jamovi.org/

jonathon