Description Usage Arguments Details
Create a model frame when there are many predictors.
1 | big.model.matrix(fo, data, n.cores)
|
fo |
A formula. |
data |
A data frame. |
n.cores |
The number of cores to use in parallel processing. |
The function breaks the formula's right had side into it's
component part, and uses each to construct a model matrix without an
intercept. So the returned object has no intercept, but xgboost
ought to be able to cope.
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