[R] p value from lmekin()

Terry Therneau therneau at mayo.edu
Thu Sep 6 15:53:34 CEST 2012



On 09/06/2012 05:00 AM, r-help-request at r-project.org wrote:
> Hi, R experts
>
>        I am currently using lmekin() function in coxme package to fit a
> mixed effect model for family based genetic data. How can I extract the p
> value from a lmekin object?  When I print the object in R console, I can
> see the p value and Z value are just over there. But I can not extract them
> by the coef() function. kinfit$coefficient$fixed (kinfit is the name of the
> lmekin object) just include the intercept and the value of fixed effects.
> Where are p and Z values?
>
>       Thank you!
>

Similar to lme and lmer, lmekin and coxme have
	fixef(fit)  returns the coefficients of the fixed effects
	vcov(fit)   returns the variance-covariance matrix of the fixed effects

so fixef(fit)/ sqrt(diag(vcov(fit))



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