On Apr 24, 2005, at 11:42 PM, Renaud Lancelot wrote:
Jacob Michaelson a ??crit :
Does anyone know how to extract residuals in lmer? Here's the error I get:
>
crop.lme=lmer(response~variety*irrigation*pesticide+(1|rep)+(1|rep: pesticide)+(1|rep:pesticide:irrigation), crop.data)
> qqnorm(crop.lme)
Error in qqnorm.default(crop.lme) : y is empty or has only NAs
> resid(crop.lme)
NULL Thanks! --Jake
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I'm afraid they're not (yet) available. At least, you can write a small function to compute response residuals, using predictions from the fixed and random parts, built with model.matrix(), fixef() and ranef(). Let me know if you need an example (I'm not available this morning).
Sure, an example would be very helpful, thanks! --Jake
Best,
Renaud
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