Learner Class — Learner-class • renoir

An S4 class representing a learner.

The object consists of 8 slots

Constructor for the S4 Learner object.

Usage

# S4 method for missing
Learner(
  tuner = Tuner(),
  trainer,
  forecaster,
  scorer = Scorer(id = "mse"),
  selector,
  recorder,
  marker,
  logger = Logger()
)

# S4 method for character
Learner(
  id,
  tuning = "grid.search",
  screening,
  sampling = c("cv", "random", "bootstrap"),
  strata = NULL,
  balance = FALSE,
  k = 10L,
  score = "mse",
  resp.type,
  looper = Looper(),
  logger = Logger()
)

is.Learner(object)

Arguments

tuner: a Tuner object
trainer: a Trainer object
forecaster: a Forecaster object
scorer: a ScorerList or a Scorer object
selector: a Selector object
recorder: a Recorder object
marker: a Marker object
logger: a Logger
id: learning method
tuning: the tuning method
screening: the screening method
sampling: the sampling strategy
strata: (optional) vector of stratification variables. If provided must be of length N
balance: logical, whether to (try to) balance the strata frequency in the output sample. Used only if strata is provided when method = "random" or method = "bootstrap"
k: the number of folds for method = "cv", or the number of repeats formethod = "random" and method = "bootstrap"
score: the accuracy measure to use during tuning
resp.type: the response type
looper: a Looper

Value

a Learner object

Slots

tuner: a Tuner object
trainer: a Trainer object
forecaster: a Forecaster object
scorer: a ScorerList object
selector: a Selector object
recorder: a Recorder object
marker: a Marker object
logger: a Logger object

Author

Alessandro Barberis