[R] a question about "multilevel"model

Gabor Grothendieck ggrothendieck at gmail.com
Mon Jan 18 09:22:45 CET 2010


This is reshaping the data frame from wide to long form.  In
particular, MULTDV is as.vector(t(dvs)).  Try typing this on a line by
itself:

make.univ

to see the code and clarify your understanding.   Also try the
examples in ?reshape to familiarize yourself with wide to long
transformations.

On Mon, Jan 18, 2010 at 12:06 AM, 孟欣 <lm_mengxin at 163.com> wrote:
> Hello all:
> I've read the document named "A Brief Introduction to R, the multilevel package and the nlme package".
> At p68, one can transform the dataset to the required format by using "make.univ".
> I wanna know,how the new variable "MULTDV" is calculated(can you show me the formula if possible please?)?And what's the usage of this new variable in the following analysis?
>
>
> Thanks a lot!
>
> My best.
>
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>
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