Hello everyone.
I would need some help with the bootstrap option on SPSS for Linear Mixed Model.
For some reason, even though I can use the boostrap option for basically any statistical analysis for which SPSS makes it available, when I try to do a Linear Mixed Model analysis the boostrap option shows up as gray and I cannot select it. As mentioned, this is the case only for LMM, it works fine for all other analyses.
So, I've been trying to figure out how I could run the boostrapping for LMM using syntax but I honestly have no idea, and I cannot find anything online (I've tried everywehre), at least I cannot find anything that I can understand.

Could someone write here the syntax command for boostrapping when running a LMM analysis? 
I would deeply appreciate it.

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Francesco Giannone
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