I’m fitting a model, which contains several 2d vectors having the same direction. Currently, I use the very intuitive way to parametrize them: angle = pm.VonMises(...) direction = tt.stack(tt.cos(angle), tt.sin(angle)) coeffs = pm.Normal(..., shape=nvec) vectors = direction * coeffs this kinda wor…

Parametrizing geometric direction

junpenglao March 11, 2018, 9:56am 8

Oh I see what you meant now in the original post now. So basically you are modelling a set of vectors that have the same mirror angle.

Do you have a notebook with data on this?

Topic		Replies	Views
How to model sinusoids in white gaussian noise Questions	11	3946	May 8, 2018
MAP not working with shape>1 and VI on a pooled model Questions	11	837	November 25, 2017
Different confidence estimates for models with(out) nuance parameters Questions	4	669	August 11, 2017
Should be identical but only one model specification works? Questions	1	471	August 28, 2019
How to compute unit vector based on RVs? Questions	4	690	May 25, 2019