Delete Attribute Within Range

yeopputra

Dear Rapidminer Community

I wish to delete certain attribute (column) which the value does not meet the predefined range. For example I have three attributes and want to retain the attribute that only have a value greater than 10 (in this case only column A)

A 1.0	B 1.0	C 2.0
2.0	2.0	1.0
11.0	3.0	0.0
5.0	4.0	3.0

Thank you.

ceaperez

Hi @yeopputra,

for this task you can use the Filter Examples operator. There you can configure your own rules to filter the attributes.

Best,

Cesar

yeopputra

Hi @ceaperez

I did tried to explore Filter Examples operator but I found it's only suitable to filter small volume of attribute (please correct if I'm wrong). Actually for this task, I have more than 300 attributes(columns) that I wish to filter. Is there any approach that I can use so that I can filter all the attributes in one operation?

lionelderkrikor

Hi @yeopputra,

You have to use  : 
 - Loop Attributes operator (to automate the process with your 300 attributes)
 - a Branch operator (to perform "IF/ELSE" statements).

Please check the process in attached file and please adapt it to your use case...

Hope this helps,

Regards,

Lionel

yeopputra

Hi @lionelderkrikor

Thanks for the guide. I did try and run the process but some error occur on the branch operator.

lionelderkrikor

Hi @yeopputra,

Are all your attributes numeric ??? It seems that some of your attributes are nominal.
In this case , it is impossible to use the "<" comparaison sign in the "condition value" parameter.

In order we can understand what is going on, please share your data and your process..

Regards,

Lionel 

yeopputra

Hi @lionelderkrikor

Sorry for the late reply. Yes. It's my bad that I did not notice that there is some nominal attributes. By the way I have remove the nominal attributes and the operator can now run without error but the result only show blank result (no attributes)

I attached my data set here for your reference