Great, thanks

On Tuesday, July 19, 2016 at 10:47:45 AM UTC-7, FaceGen Guru wrote:
>
>
> Certainly. And for small perturbations it would be linear; just in 
> different proportions depending on the perturbation vector.
>
> How this proportion varies by perturbation vector direction I have no idea.
>
> Note that since chi-squared variance is 2 * DOF, perturbation squared 
> magnitude (actually a re-scaled chi-squared with mean 1) variance is thus 
> 2/DOF giving a standard deviation of about 0.12.
>
> Best wishes,
>
>

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