[jira] [Updated] (SPARK-20180) Add a special value for unlimited max pattern length in Prefix span, and set it as default.

["Cyril de Vogelaere (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cyril de Vogelaere updated SPARK-20180:
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    Summary: Add a special value for unlimited max pattern length in Prefix span, and set it as default.  (was: Unlimited max pattern length in Prefix span)

> Add a special value for unlimited max pattern length in Prefix span, and set it as default.
> -------------------------------------------------------------------------------------------
>
>                 Key: SPARK-20180
>                 URL: https://issues.apache.org/jira/browse/SPARK-20180
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 2.1.0
>            Reporter: Cyril de Vogelaere
>            Priority: Minor
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> Right now, we need to use .setMaxPatternLength() method to
> specify is the maximum pattern length of a sequence. Any pattern longer than that won't be outputted.
> The current default maxPatternlength value being 10.
> This should be changed so that with input 0, all pattern of any length would be outputted. Additionally, the default value should be changed to 0, so that a new user could find all patterns in his dataset without looking at this parameter.



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