Réponse
specifies the missing policy to handle missing values.
Default: USEINSEARCH
MACSMALL: specifies to treat the missing values for numeric variables as the smallest machine value and to treat missing values for nominal variables as a separate level.
USEINSEARCH: specifies to incorporate missing values in the calculation of the worth of a splitting rule, and consequently to produce a splitting rule that associates missing values with a branch that maximizes the worth of the split.
Default: USEINSEARCH
MACSMALL: specifies to treat the missing values for numeric variables as the smallest machine value and to treat missing values for nominal variables as a separate level.
USEINSEARCH: specifies to incorporate missing values in the calculation of the worth of a splitting rule, and consequently to produce a splitting rule that associates missing values with a branch that maximizes the worth of the split.
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