Impression modelling

[cbSuccessAcademies]

Project Robyn

Describe issue

Is it possible to switch to fitting the model using the impression data?

[AdimDrewnik]

You need to explain your problem in more detail.

[cbSuccessAcademies]

Apologies, so I am reading the demo script and I am seeing this where the default modeling variable has changed from paid_media_vars to paid_media_spends. I would prefer to model on impressions because it could build a better model. My thinking is because impressions are the point of contact for the media served. I would like to know how to switch the modeling variable to paid_media_vars

[gufengzhou]

Robyn doesn't support imp modelling anymore due to the uncertainty it introduces to budget allocation.

[AdimDrewnik]

@gufengzhou So having some TV ads is it no longer possible to use GRPs in Robyn modelling? Only TV spend should be used or can I use GRPs in place of spend?