setupDataset: Given specific contents of env add ohter dataset related variables.
Description
This rattle support function is used for encapsulating data mining
objects. The supplied environment is augmented with other data derived
from the supplied data, such as a sample trianing dataset, list of
numeric variables, and a formula for modelling.
Usage
setupDataset(env, seed=NULL)
Arguments
env
the environment to modify.
seed
optionally set the seed for repeatability.
Details
The supplied object (an environment) is assumed to also contain the
variables data (a data frame), target (a character string naming the
target variable), risk (a character string naming the risk variable),
and inputs (a character vector naming all the input variables). This
function then adds in the variables vars (the variables used for
modelling), numerics (the numeric vars within inputs), nobs (the
number of observations), form (the formula for building models), train
(a 70% training dataset).