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Posted to reviews@spark.apache.org by yanboliang <gi...@git.apache.org> on 2017/05/16 05:10:52 UTC
[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
GitHub user yanboliang opened a pull request:
https://github.com/apache/spark/pull/17994
[SPARK-20505][ML] Add docs and examples for ml.stat.Correlation and ml.stat.ChiSquareTest.
## What changes were proposed in this pull request?
Add docs and examples for ```ml.stat.Correlation``` and ```ml.stat.ChiSquareTest```.
## How was this patch tested?
Generate docs and run examples manually, successfully.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yanboliang/spark spark-20505
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17994.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #17994
----
commit 29d357fa07f16fb8c00a9fca7ef57898a23e0c6b
Author: Yanbo Liang <yb...@gmail.com>
Date: 2017-05-16T05:05:14Z
Add docs and examples for ml.stat.Correlation and ml.stat.ChiSquareTest.
----
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by yanboliang <gi...@git.apache.org>.
Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116776610
--- Diff: examples/src/main/python/ml/correlation_example.py ---
@@ -0,0 +1,51 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import print_function
+
+# $example on$
+from pyspark.ml.linalg import Vectors
+from pyspark.ml.stat import Correlation
+# $example off$
+from pyspark.sql import SparkSession
+
+"""
+An example for computing correlation matrix.
+Run with:
+ bin/spark-submit examples/src/main/python/ml/correlation_example.py
+"""
+if __name__ == "__main__":
+ spark = SparkSession \
+ .builder \
+ .appName("CorrelationExample") \
+ .getOrCreate()
+
+ # $example on$
+ data = [(Vectors.sparse(4, [(0, 1.0), (3, -2.0)]),),
--- End diff --
Done.
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by MLnick <gi...@git.apache.org>.
Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116725105
--- Diff: examples/src/main/python/ml/correlation_example.py ---
@@ -0,0 +1,51 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import print_function
+
+# $example on$
+from pyspark.ml.linalg import Vectors
+from pyspark.ml.stat import Correlation
+# $example off$
+from pyspark.sql import SparkSession
+
+"""
+An example for computing correlation matrix.
+Run with:
+ bin/spark-submit examples/src/main/python/ml/correlation_example.py
+"""
+if __name__ == "__main__":
+ spark = SparkSession \
+ .builder \
+ .appName("CorrelationExample") \
+ .getOrCreate()
+
+ # $example on$
+ data = [(Vectors.sparse(4, [(0, 1.0), (3, -2.0)]),),
--- End diff --
We mix dense and sparse here but not in Scala. Should we make it consistent?
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by yanboliang <gi...@git.apache.org>.
Github user yanboliang commented on the issue:
https://github.com/apache/spark/pull/17994
Merged into master and branch-2.2. Thanks for reviewing.
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by MLnick <gi...@git.apache.org>.
Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116725407
--- Diff: examples/src/main/python/ml/chi_square_test_example.py ---
@@ -0,0 +1,52 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import print_function
+
+from pyspark.sql import SparkSession
+# $example on$
+from pyspark.ml.linalg import Vectors
+from pyspark.ml.stat import ChiSquareTest
+# $example off$
+
+"""
+An example for Chi-square hypothesis testing.
+Run with:
+ bin/spark-submit examples/src/main/python/ml/chi_square_test_example.py
+"""
+if __name__ == "__main__":
+ spark = SparkSession \
+ .builder \
+ .appName("ChiSquareTestExample") \
+ .getOrCreate()
+
+ # $example on$
+ data = [(0.0, Vectors.dense(0.5, 10.0)),
+ (0.0, Vectors.dense(1.5, 20.0)),
+ (1.0, Vectors.dense(1.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 40.0)),
+ (1.0, Vectors.dense(3.5, 40.0))]
+ df = spark.createDataFrame(data, ["label", "features"])
+
+ r = ChiSquareTest.test(df, "features", "label").head()
+ print("pValues: " + str(r[0]))
--- End diff --
we could do `r.pValues`, `r. degreesOfFreedom`, `r. statistics`?
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/17994
**[Test build #76974 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/76974/testReport)** for PR 17994 at commit [`3417c58`](https://github.com/apache/spark/commit/3417c5817bc8de3b55d836a84f6126771ee2939f).
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:
https://github.com/apache/spark/pull/17994
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by yanboliang <gi...@git.apache.org>.
Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116776662
--- Diff: examples/src/main/python/ml/chi_square_test_example.py ---
@@ -0,0 +1,52 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import print_function
+
+from pyspark.sql import SparkSession
+# $example on$
+from pyspark.ml.linalg import Vectors
+from pyspark.ml.stat import ChiSquareTest
+# $example off$
+
+"""
+An example for Chi-square hypothesis testing.
+Run with:
+ bin/spark-submit examples/src/main/python/ml/chi_square_test_example.py
+"""
+if __name__ == "__main__":
+ spark = SparkSession \
+ .builder \
+ .appName("ChiSquareTestExample") \
+ .getOrCreate()
+
+ # $example on$
+ data = [(0.0, Vectors.dense(0.5, 10.0)),
+ (0.0, Vectors.dense(1.5, 20.0)),
+ (1.0, Vectors.dense(1.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 40.0)),
+ (1.0, Vectors.dense(3.5, 40.0))]
+ df = spark.createDataFrame(data, ["label", "features"])
+
+ r = ChiSquareTest.test(df, "features", "label").head()
+ print("pValues: " + str(r[0]))
--- End diff --
Done.
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/17994
**[Test build #76963 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/76963/testReport)** for PR 17994 at commit [`29d357f`](https://github.com/apache/spark/commit/29d357fa07f16fb8c00a9fca7ef57898a23e0c6b).
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/17994
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/17994
**[Test build #76963 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/76963/testReport)** for PR 17994 at commit [`29d357f`](https://github.com/apache/spark/commit/29d357fa07f16fb8c00a9fca7ef57898a23e0c6b).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds the following public classes _(experimental)_:
* `public class JavaChiSquareTestExample `
* `public class JavaCorrelationExample `
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by MLnick <gi...@git.apache.org>.
Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116724713
--- Diff: examples/src/main/scala/org/apache/spark/examples/ml/ChiSquareTestExample.scala ---
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// scalastyle:off println
+package org.apache.spark.examples.ml
+
+// $example on$
+import org.apache.spark.ml.linalg.{Vector, Vectors}
+import org.apache.spark.ml.stat.ChiSquareTest
+// $example off$
+import org.apache.spark.sql.SparkSession
+
+/**
+ * An example for Chi-square hypothesis testing.
+ * Run with
+ * {{{
+ * bin/run-example ml.ChiSquareTestExample
+ * }}}
+ */
+object ChiSquareTestExample {
+
+ def main(args: Array[String]): Unit = {
+ val spark = SparkSession
+ .builder
+ .appName("ChiSquareTestExample")
+ .getOrCreate()
+ import spark.implicits._
+
+ // $example on$
+ val data = Seq(
+ (0.0, Vectors.dense(0.5, 10.0)),
+ (0.0, Vectors.dense(1.5, 20.0)),
+ (1.0, Vectors.dense(1.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 40.0)),
+ (1.0, Vectors.dense(3.5, 40.0))
+ )
+
+ val df = data.toDF("label", "features")
+ val chi = ChiSquareTest.test(df, "features", "label")
+ val (pValues: Vector, degreesOfFreedom: Array[Int], statistics: Vector) =
+ chi.select("pValues", "degreesOfFreedom", "statistics")
--- End diff --
Nit: do we need the select here?
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:
https://github.com/apache/spark/pull/17994
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[GitHub] spark pull request #17994: [SPARK-20505][ML] Add docs and examples for ml.st...
Posted by yanboliang <gi...@git.apache.org>.
Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/17994#discussion_r116776696
--- Diff: examples/src/main/scala/org/apache/spark/examples/ml/ChiSquareTestExample.scala ---
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// scalastyle:off println
+package org.apache.spark.examples.ml
+
+// $example on$
+import org.apache.spark.ml.linalg.{Vector, Vectors}
+import org.apache.spark.ml.stat.ChiSquareTest
+// $example off$
+import org.apache.spark.sql.SparkSession
+
+/**
+ * An example for Chi-square hypothesis testing.
+ * Run with
+ * {{{
+ * bin/run-example ml.ChiSquareTestExample
+ * }}}
+ */
+object ChiSquareTestExample {
+
+ def main(args: Array[String]): Unit = {
+ val spark = SparkSession
+ .builder
+ .appName("ChiSquareTestExample")
+ .getOrCreate()
+ import spark.implicits._
+
+ // $example on$
+ val data = Seq(
+ (0.0, Vectors.dense(0.5, 10.0)),
+ (0.0, Vectors.dense(1.5, 20.0)),
+ (1.0, Vectors.dense(1.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 30.0)),
+ (0.0, Vectors.dense(3.5, 40.0)),
+ (1.0, Vectors.dense(3.5, 40.0))
+ )
+
+ val df = data.toDF("label", "features")
+ val chi = ChiSquareTest.test(df, "features", "label")
+ val (pValues: Vector, degreesOfFreedom: Array[Int], statistics: Vector) =
+ chi.select("pValues", "degreesOfFreedom", "statistics")
--- End diff --
Removed.
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:
https://github.com/apache/spark/pull/17994
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by SparkQA <gi...@git.apache.org>.
Github user SparkQA commented on the issue:
https://github.com/apache/spark/pull/17994
**[Test build #76974 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/76974/testReport)** for PR 17994 at commit [`3417c58`](https://github.com/apache/spark/commit/3417c5817bc8de3b55d836a84f6126771ee2939f).
* This patch passes all tests.
* This patch merges cleanly.
* This patch adds no public classes.
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by AmplabJenkins <gi...@git.apache.org>.
Github user AmplabJenkins commented on the issue:
https://github.com/apache/spark/pull/17994
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[GitHub] spark issue #17994: [SPARK-20505][ML] Add docs and examples for ml.stat.Corr...
Posted by yanboliang <gi...@git.apache.org>.
Github user yanboliang commented on the issue:
https://github.com/apache/spark/pull/17994
cc @jkbradley
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