RapidMiner

RapidMiner

Sort Operator

Status: New
by Shawn ‎08-12-2016 09:45 AM

The Sort operator only lets you sort by one attribute. Often it is necessary to sort by more than one attribute. Adding the ability to sort by multiple attributes would greatly enhance this simple sorting functionality.

Comments
Elite II

Hi Shawn,

 

this functionality (among other similar smaller enhancements with a big impact on usability) can be found as part of our Jackhammer extension. Please see at oldworldcomputing.com for details.

 

Greetings,

   Sebastian 

jeremy
Contributor II

According to the Sort operator info by building a sequnce of Sort operators you can achieve what you whant.  I have tried it on two attributes and it works fine. You just need to carefully consider the order of the two operators to get the sort you need.

Elite II

You are right, however it clutters up your processes pretty quickly if you have to sort to three or even more attributes. Especially if you need to sort, reverse and sort again as necessary for some ETL steps. Unfortuantely the Loop operators don't help as they don't guarantee the order of attributes.

 

Greetings,

 Sebastian