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3 results for “from:Oana Mocila”

how to put constraint in R?
Oana Mocila · Dec 20, 2005 · r-help

Dear all, I have a problem when I was working on Age-Period-Cohort study in R. I tried to put constraint to two coefficients on age (so that to solve the identification problem due to linear dependency). But I...

parameterization of factor in R
Oana Mocila · Dec 27, 2005 · r-help

Hi all, I encountered this problem with parameterization in R: I have two factors in a regression. how about if I want to set constraint so that for each factor, the sum of their coefficients equals to zero(instead of...

parameterization of factor in R
Oana Mocila · Dec 28, 2005 · r-help

Dear Prof Brian Ripley and Graves, Thank you for your replies. MASS has been very helpful! Oana >From: Spencer Graves <spencer.graves at pdf.com> >To: Prof Brian Ripley <ripley at stats.ox.ac.uk> >CC: Oana Mocila <oanaom at...

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