Simple holdout: A single split into training and test. Parameter ratio determines the ratio of observation in the train set.

ResamplingHoldout

## Format

R6::R6Class inheriting from Resampling.

## Examples

# Create a task with 10 observations
task = mlr_tasks$get("iris") task$filter(1:10)

# Instantiate Resampling
rho = mlr_resamplings$get("holdout") rho$instantiate(task)

# Individual sets:
rho$train_set(1)#> [1] 8 6 4 2 1 3 7rho$test_set(1)#> [1]  5  9 10intersect(rho$train_set(1), rho$test_set(1))#> integer(0)
# Internal storage:
rho$instance # simple list#>$train
#> [1] 8 6 4 2 1 3 7
#>
#> \$test
#> [1]  5  9 10
#>