Hi All,
I have some data where the dependent variable is a score, low (1:3) or
high (8:9), and the independent variables are 21 genotypic markers.
I'm fitting a logistic regression on the whole dataset after
transforming the score to 0/1 and normal linear regression on the high
and low subsets.
I all cases I have a numer of cases of data 'duplications', i.e.
different individuals with the same score and the same genotype at the
21 markers.
When I do:
mod$fitted.values I get a number of fitted values corresponding to the
umber of unique lines in the dataset. Is there a way to have the
fitted values match the observation, even though some are duplicated
and so have the same fitted value? I could do it by hand but it's
laborious and I'd venture there is a better way.
Best,
Federico
--
Federico C. F. Calboli
Department of Epidemiology and Public Health
Imperial College, St. Mary's Campus
Norfolk Place, London W2 1PG
Tel +44 (0)20 75941602 Fax +44 (0)20 75943193
f.calboli [.a.t] imperial.ac.uk
f.calboli [.a.t] gmail.com
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