Model and eval input data

metadata.json

{
  "name": "Model and eval input data",
  "kind": "script",
  "description": "Take a dataset, split, train and eval",
  "source_code": "script.whizzml",
  "inputs":[
    {
      "name": "dataset",
      "type": "dataset-id",
      "description": "Data for training and evaluation"
    }],
  "outputs":[
    {
      "name": "evaluation",
      "type": "evaluation-id",
      "description": "Evaluation over training dataset"
    },
    {
      "name": "model",
      "type": "model-id",
      "description": "Model over test dataset"
    }]
}

script.whizzml

(define full-name ((fetch dataset) "name"))
(define train-name (str full-name " (training)"))
(define test-name (str full-name " (test)"))

(define [train-dataset test-dataset]
  (create-dataset-split dataset 0.8 "bigml"
                        {"name" train-name}
                        {"name" test-name}))

(define model
  (create-model train-dataset))

(define evaluation
  (wait (create-evaluation model test-dataset)))