Number of instances to obtain the value of the coefficients in Model Tree

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Number of instances to obtain the value of the coefficients in Model Tree

AndreiA-3
Starting from how many instances an equation of lineal regression can be
built
in node of model tree? When the number of instances of the model is
small and  want
to use smoothing, the coefficient of this model will receive the value
zero or in this
process should usually build the lineal model to obtain the
coefficients.


Thank you!!!


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