[R] nested random effects

Dede Greenstein dede01 at codon.nih.gov
Mon Apr 11 20:38:08 CEST 2005


Hello

For an unbalanced longitudinal data set with subjects nested within 
family  as the random effect (random= ~1 | FAMILY/ID)-- I am unclear as to 
why the subject within family random coefficient is not zero when there is 
only one person in a family with only one data point.

Thanks
Dede Greenstein




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