Displaying 1 result from an estimated 1 matches for "14m27".
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1427
2003 Mar 15
1
formula, how to express for transforming the whole model.matrix, data=Orthodont
...102 m26 10m26 m26 10m26
103 m26 12m26 m26 12m26
104 m26 14m26 m26 14m26
105 m27 8m27 m27 8m27
106 m27 10m27 m27 10m27
107 m27 12m27 m27 12m27
108 m27 14m27 m27 14m27
I tried to add a new column in the data, say "m". But
the following formula expression does not work. Since
Sex is a factor.
y ~ m + I(m*age) + I(m*Sex) + I(m*age*Sex)
Moreover, in order to implement the EM from "Robust
Estimation in Linear Mixed-Effects Mode...