Description Usage Arguments Details Value Examples
Creates resamples for K-fold cross-validation stratified by target variable.
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data |
data.table with target variable. |
y |
Target variable name (character). |
nfolds |
Number of folds (min 2, max 20). |
probs |
Numeric vector of probabilities for quantile binning with values in [0, 1] range. |
Numeric target: quantile binning is used for stratification.
Character/categorical target: resampling performs within categories.
probs
can be a vector like c(0, seq(0.99, 1, length.out = 10))
for target with very skewed distribution, e.g. for financial data with 99% of 0's.
data.table with nfolds
columns. Each column is an indicator variable
with 1 corresponds to observations in validation dataset (stratified by target).
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