search for: s_ik

Displaying 2 results from an estimated 2 matches for "s_ik".

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2005 Sep 14
1
Random effect model
Dear R-help group, I would like to model directly following random effect model: Y_ik = M_ik + E_ik where M_ik ~ N(Mew_k,tau_k^2) E_ik ~ N(0,s_ik^2) i = number of study k = number of treatment --------------------------------------------------------------------------- I have practiced using the command from 'Mixed -Effects models in S and S-plus' as follow fm1logit.lme <- lme(logitp~1, data=logit, random = ~1|factor(Tr)) I...
2004 Sep 08
8
isoMDS
Dear List: I have a question regarding an MDS procedure that I am accustomed to using. I have searched around the archives a bit and the help doc and still need a little assistance. The package isoMDS is what I need to perform the non-metric scaling, but I am working with similarity matrices, not dissimilarities. The question may end up being resolved simply. Here is a bit of substantive