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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2015/04/29 20:44:07 UTC

[jira] [Created] (SPARK-7241) Pearson correlation for DataFrames

Xiangrui Meng created SPARK-7241:
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             Summary: Pearson correlation for DataFrames
                 Key: SPARK-7241
                 URL: https://issues.apache.org/jira/browse/SPARK-7241
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
            Reporter: Xiangrui Meng
            Assignee: Burak Yavuz


This JIRA is for computing the Pearson linear correlation for two numerical columns in a DataFrame. The method `corr` should live under `df.stat`:

{code}
df.stat.corr(col1, col2, method="pearson"): Double
{code}

`method` will be used when we add other correlations.




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