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https://issues.apache.org/jira/browse/SPARK-8774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiangrui Meng updated SPARK-8774:
---------------------------------
Description:
To have better integration with SparkR, we can add a feature transformer to
support R formula. A list of operators R supports can be find here:
http://ww2.coastal.edu/kingw/statistics/R-tutorials/formulae.html
The initial version should support "~", "+", and "." on numeric columns and we
can expand it in the future.
{code}
val formula = new RModelFormula()
.setFormula("y ~ x + z")
{code}
The output should append two new columns: features and label.
Design doc is posted at
https://docs.google.com/document/d/10NZNSEurN2EdWM31uFYsgayIPfCFHiuIu3pCWrUmP_c/edit?usp=sharing,
as part of SPARK-6805.
was:
To have better integration with SparkR, we can add a feature transformer to
support R formula. A list of operators R supports can be find here:
http://ww2.coastal.edu/kingw/statistics/R-tutorials/formulae.html
The initial version should support "~", "+", and "." on numeric columns and we
can expand it in the future.
{code}
val formula = new RModelFormula()
.setFormula("y ~ x + z")
{code}
The output should append two new columns: features and label.
> Add R model formula with basic support as a transformer
> -------------------------------------------------------
>
> Key: SPARK-8774
> URL: https://issues.apache.org/jira/browse/SPARK-8774
> Project: Spark
> Issue Type: New Feature
> Components: ML, SparkR
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> To have better integration with SparkR, we can add a feature transformer to
> support R formula. A list of operators R supports can be find here:
> http://ww2.coastal.edu/kingw/statistics/R-tutorials/formulae.html
> The initial version should support "~", "+", and "." on numeric columns and
> we can expand it in the future.
> {code}
> val formula = new RModelFormula()
> .setFormula("y ~ x + z")
> {code}
> The output should append two new columns: features and label.
> Design doc is posted at
> https://docs.google.com/document/d/10NZNSEurN2EdWM31uFYsgayIPfCFHiuIu3pCWrUmP_c/edit?usp=sharing,
> as part of SPARK-6805.
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