Thanks so much

On Tuesday, July 19, 2016 at 5:35:58 AM UTC-7, FaceGen Guru wrote:
>
>
> Hi Jessie,
>
> There is no way to keep the age axis fixed when generating randomly 
> perturbed faces in the 'Genetic' tab.
>
> As you point out, the best way is to manually adjust the age of each 
> perturbed sample back to where you want it.
>
> Note that the random perturbations added in the 'Genetic' tab are 
> multivariate normally distributed in face space, so the magnitude of the 
> perturbations are not completely fixed but in fact follow a chi-squared 
> distribution (with 130 DOF over shape and color), with mean proportional to 
> the 'Randomness' value. Further, even if they were fixed magnitude 
> perturbations, there is no guarantee they are proportional to perceptual 
> measures of difference as they are defined by squared differences.
>
> Best wishes,
>
>

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