make_generator_from_xy: Make a DataGenerator from a x,y matrices

In mlr-org/mlr3keras: mlr3 Keras extension

Make a DataGenerator from a x,y matrices

Description

Creates a Python Class that internally iterates over the data.

Usage

make_generator_from_xy(
  x,
  y,
  generator = keras::image_data_generator(),
  batch_size = 32L,
  shuffle = TRUE,
  seed = 1L,
  subset = NULL,
  ignore_class_split = FALSE
)

Arguments

x	matrix Numeric matrix of features.
y	matrix Numeric matrix of target, already one-hot transformed.
generator	Python Object A generator as e.g. obtained from keras::image_data_generator. Used for consistent train-test splits.
batch_size	integer Batch size.
shuffle	logical Should data be shuffled?
seed	integer Set a seed for shuffling data.
subset	character Should samples be generated from 'training' or 'validation' set? Only applicable together with a 'generator'.
ignore_class_split	logical Test whether all class labels appear in all splits.

mlr-org/mlr3keras documentation built on April 12, 2022, 11:35 a.m.