trait ExpandableVariable extends AnyRef
The ExpandableVariable trait provides the framwork for replacing categorical
variables with dummy variables. A dummy variable having 'n' levels is replaced
with 'n-1' dummy variables.
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- abstract def expand(zt: VectoD, cat: Int = 1): VectoD
Expand the vector 'zt' into a vector of terms/columns including dummy variables.
Expand the vector 'zt' into a vector of terms/columns including dummy variables.
- zt
the vector with categorical values (at the end) to expand
- abstract def predict_ex(zt: VectoD): Double
Given the vector 'zt', expand it and predict the response value.
Given the vector 'zt', expand it and predict the response value.
- zt
the vector with categorical values (at the end) to expand
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