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Posted to issues@madlib.apache.org by "Frank McQuillan (JIRA)" <ji...@apache.org> on 2017/01/18 03:43:26 UTC

[jira] [Closed] (MADLIB-1050) Encoding of categorical variables limited to ~1600 colums?

     [ https://issues.apache.org/jira/browse/MADLIB-1050?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Frank McQuillan closed MADLIB-1050.
-----------------------------------

> Encoding of categorical variables limited to ~1600 colums? 
> -----------------------------------------------------------
>
>                 Key: MADLIB-1050
>                 URL: https://issues.apache.org/jira/browse/MADLIB-1050
>             Project: Apache MADlib
>          Issue Type: Bug
>          Components: Module: Utilities
>            Reporter: Maximilian Schleich
>            Assignee: Rahul Iyer
>             Fix For: v1.10
>
>
> Hello, 
> I am trying to use the dummy encoding for categorical variables and feed it to a linear regression model. My dataset, however, has more than 1664 categories, so Postgres cannot store it in one table. Is there any other way for encoding dummy variables that does not require the creation of a new table, perhaps the function can be streamlined into the regression model? 
> Thank you for your help!



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