[R] How to prevent inclusion of intercept in lme with interaction

[Dieter Menne]

ONKELINX, Thierry <Thierry.ONKELINX <at> inbo.be> writes:

> With t*treat the model allows for a different slope AND a different
> intercept for each treatment. If you only want different slopes and all
> intercepts equal to 0, then t:treat - 1 or t + t:treat - 1 is the model
> you are looking for.

Thanks Thierry and Christian, I knew it was something stupid.

Dieter