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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/08/16 00:16:00 UTC
[jira] [Assigned] (SPARK-25082) Documentation for Spark Function
expm1 is incomplete
[ https://issues.apache.org/jira/browse/SPARK-25082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-25082:
------------------------------------
Assignee: Apache Spark
> Documentation for Spark Function expm1 is incomplete
> ----------------------------------------------------
>
> Key: SPARK-25082
> URL: https://issues.apache.org/jira/browse/SPARK-25082
> Project: Spark
> Issue Type: Documentation
> Components: Spark Core
> Affects Versions: 2.0.0, 2.3.1
> Reporter: Alexander Belov
> Assignee: Apache Spark
> Priority: Trivial
> Labels: documentation, easyfix
>
> The documentation for the function expm1 that takes in a string
> public static [Column|https://spark.apache.org/docs/2.3.1/api/java/org/apache/spark/sql/Column.html] expm1(String columnName) ([https://spark.apache.org/docs/2.3.1/api/java/org/apache/spark/sql/functions.html#expm1-java.lang.String-)]
> States that it "Computes the exponential of the given column." without mentioning that it first subtracts 1 from the value.
>
> The documentation for the function expm1 that takes in a column has the correct documentation:
> https://spark.apache.org/docs/2.3.1/api/java/org/apache/spark/sql/functions.html#expm1-org.apache.spark.sql.Column-
>
> "Computes the exponential of the given value minus one."
>
>
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