diff options
| -rw-r--r-- | docs/ml-guide.md | 5 | ||||
| -rw-r--r-- | examples/src/main/python/ml/cross_validator.py | 5 |
2 files changed, 9 insertions, 1 deletions
diff --git a/docs/ml-guide.md b/docs/ml-guide.md index 5900d665b3..a5a825f64e 100644 --- a/docs/ml-guide.md +++ b/docs/ml-guide.md @@ -283,6 +283,11 @@ However, it is also a well-established method for choosing parameters which is m {% include_example java/org/apache/spark/examples/ml/JavaModelSelectionViaCrossValidationExample.java %} </div> +<div data-lang="python"> + +{% include_example python/ml/cross_validator.py %} +</div> + </div> ## Example: model selection via train validation split diff --git a/examples/src/main/python/ml/cross_validator.py b/examples/src/main/python/ml/cross_validator.py index f0ca97c724..5f0ef20218 100644 --- a/examples/src/main/python/ml/cross_validator.py +++ b/examples/src/main/python/ml/cross_validator.py @@ -18,12 +18,14 @@ from __future__ import print_function from pyspark import SparkContext +# $example on$ from pyspark.ml import Pipeline from pyspark.ml.classification import LogisticRegression from pyspark.ml.evaluation import BinaryClassificationEvaluator from pyspark.ml.feature import HashingTF, Tokenizer from pyspark.ml.tuning import CrossValidator, ParamGridBuilder from pyspark.sql import Row, SQLContext +# $example off$ """ A simple example demonstrating model selection using CrossValidator. @@ -36,7 +38,7 @@ Run with: if __name__ == "__main__": sc = SparkContext(appName="CrossValidatorExample") sqlContext = SQLContext(sc) - + # $example on$ # Prepare training documents, which are labeled. LabeledDocument = Row("id", "text", "label") training = sc.parallelize([(0, "a b c d e spark", 1.0), @@ -92,5 +94,6 @@ if __name__ == "__main__": selected = prediction.select("id", "text", "probability", "prediction") for row in selected.collect(): print(row) + # $example off$ sc.stop() |