Dear R-users,

I'm running a simulation study on multivariate meta-regression and I perform
an analysis on the regression coefficients  from different subjects nested
in different studies.
I also perform the Cholesky factorization and because of this I need to keep
the residual variance to 1.
As far as I tried I wasn't able to find any function that allowed this
condition both with lme and lmer.
Is there any suggestion. I thank you all for your time.
Best regards

                                               Vincenzo Barbaro

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