[jira] [Commented] (SPARK-10578) pyspark.ml.classification.RandomForestClassifer does not return `rawPrediction` column

2015-09-14 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-10578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14743831#comment-14743831
 ] 

Karen Yin-Yee Ng commented on SPARK-10578:
--

Thanks [~josephkb] and [~viirya] for the quick response.

> pyspark.ml.classification.RandomForestClassifer does not return 
> `rawPrediction` column
> --
>
> Key: SPARK-10578
> URL: https://issues.apache.org/jira/browse/SPARK-10578
> Project: Spark
>  Issue Type: Bug
>  Components: ML
>Affects Versions: 1.4.0, 1.4.1
> Environment: CentOS, PySpark 1.4.1, Scala 2.10 
>Reporter: Karen Yin-Yee Ng
>Assignee: Joseph K. Bradley
> Fix For: 1.5.0
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> To use `pyspark.ml.classification.RandomForestClassifer` with 
> `BinaryClassificationEvaluator`, a column called `rawPrediction` needs to be 
> returned by the `RandomForestClassifer`. 
> The PySpark documentation example of `logisticsRegression`outputs the 
> `rawPrediction` column but not `RandomForestClassifier`.
> Therefore, one is unable to use `RandomForestClassifier` with the evaluator 
> nor put it in a pipeline with cross validation.
> A relevant piece of code showing how to reproduce the bug can be found at:
> https://gist.github.com/karenyyng/cf61ae655b032f754bfb
> A relevant post due to this possible bug can also be found at:
> http://apache-spark-user-list.1001560.n3.nabble.com/Issue-with-running-CrossValidator-with-RandomForestClassifier-on-dataset-td23791.html



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[jira] [Created] (SPARK-10578) pyspark.ml.classification.RandomForestClassifer does not return `rawPrediction` column

2015-09-12 Thread Karen Yin-Yee Ng (JIRA)
Karen Yin-Yee Ng created SPARK-10578:


 Summary: pyspark.ml.classification.RandomForestClassifer does not 
return `rawPrediction` column
 Key: SPARK-10578
 URL: https://issues.apache.org/jira/browse/SPARK-10578
 Project: Spark
  Issue Type: Bug
  Components: ML
Affects Versions: 1.4.1, 1.4.0
 Environment: CentOS, PySpark 1.4.1, Scala 2.10 
Reporter: Karen Yin-Yee Ng


To use `pyspark.ml.classification.RandomForestClassifer` with 
`BinaryClassificationEvaluator`, a column called `rawPrediction` needs to be 
returned by the `RandomForestClassifer`. 
The PySpark documentation example of `logisticsRegression`outputs the 
`rawPrediction` column but not `RandomForestClassifier`.

Therefore, one is unable to use `RandomForestClassifier` with the evaluator nor 
put it in a pipeline with cross validation.

A relevant piece of code showing how to reproduce the bug can be found at:
https://gist.github.com/karenyyng/cf61ae655b032f754bfb

A relevant post due to this possible bug can also be found at:
http://apache-spark-user-list.1001560.n3.nabble.com/Issue-with-running-CrossValidator-with-RandomForestClassifier-on-dataset-td23791.html





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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712593#comment-14712593
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

I have an adhoc piece of python code that will parse a dataframe schema from 
python strings similar to what Yanbo Liang has mentioned.
But that is not the point. The basic functionality of parsing CSV / TSV should 
be part of PySpark.
I should have submitted and will submit a feature request.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712597#comment-14712597
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712599#comment-14712599
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712598#comment-14712598
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712596#comment-14712596
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712595#comment-14712595
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Issue Comment Deleted] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Karen Yin-Yee Ng updated SPARK-9807:

Comment: was deleted

(was: It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.)

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Issue Comment Deleted] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Karen Yin-Yee Ng updated SPARK-9807:

Comment: was deleted

(was: It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.)

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Issue Comment Deleted] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Karen Yin-Yee Ng updated SPARK-9807:

Comment: was deleted

(was: It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.)

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Issue Comment Deleted] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Karen Yin-Yee Ng updated SPARK-9807:

Comment: was deleted

(was: It just means that the DataFrame keeps the data type from the RDD. 
It has not done any type inference from a user's perspective.)

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Commented] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-26 Thread Karen Yin-Yee Ng (JIRA)

[ 
https://issues.apache.org/jira/browse/SPARK-9807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14712583#comment-14712583
 ] 

Karen Yin-Yee Ng commented on SPARK-9807:
-

 According to the documentation at 
http://spark.apache.org/docs/latest/api/python/pyspark.sql.html?highlight=createdataframe#pyspark.sql.SQLContext.createDataFrame

it says:
 When schema is a list of column names, the type of each column will be 
 inferred from data.

I did supply the `sqlContext.createDataFrame` method with the column names in 
my example.
Please correct the documentation if the type inference is not supposed to work.

 pyspark.sql.createDataFrame does not infer data type of parsed TSV
 --

 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng
   Original Estimate: 24h
  Remaining Estimate: 24h

 I tried parsing a space-separated file from HDFS.
 And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to 
 a PySpark DataFrame. However, all entries are parsed as string type 
 regardless of what the correct data type is.
 An example of my code and output can be found at:
 https://gist.github.com/karenyyng/a1264d6344c54df4fcc5



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[jira] [Created] (SPARK-9807) pyspark.sql.createDataFrame does not infer data type of parsed TSV

2015-08-10 Thread Karen Yin-Yee Ng (JIRA)
Karen Yin-Yee Ng created SPARK-9807:
---

 Summary: pyspark.sql.createDataFrame does not infer data type of 
parsed TSV
 Key: SPARK-9807
 URL: https://issues.apache.org/jira/browse/SPARK-9807
 Project: Spark
  Issue Type: Bug
  Components: PySpark
Affects Versions: 1.4.1
 Environment: CentOS 6, Python version 2.7.10, Scala version 2-10 
Reporter: Karen Yin-Yee Ng


I tried parsing a space-separated file from HDFS.
And using `pyspark.sqlContext.createDataFrame` to convert the parsed lines to a 
PySpark DataFrame. However, all entries are parsed as string type regardless of 
what the correct data type is.

An example of my code and output can be found at:
https://gist.github.com/karenyyng/a1264d6344c54df4fcc5




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