然后就没有出来interaction。
之后说我“There are no degrees of freedom to estimate sigma_squared. Set sigma_squared
to a constant, or delete one or more of the random effects from the model.”
请问这种情况怎么解决??
帮忙解决的送论坛币啊!!
谢谢各位!!!
楼主: addytsai
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(HLM)There are no degrees of freedom to estimate sigma_squared |
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