Select Attributes by reading a file?

hughesfleming68

I don't think there is a way to do this so I am wondering how difficult this might be to do with some scripting or even an extension. I have an external application that generates inputs and then does some of its own feature selection which I can write to a text file.

 

In Rapidminer, I have all the attributes and a select attribute operator but no way to drive that selection without manually chosing which attributes I would like to use. What I would like to do is read a list and tell the select attibute operator to use those attributes.

 

Is there another way to approach this that I might have missed?

 

Kind regards,

 

Alex

Thomas_Ott

Can you use the Reg Ex function from the Select Attributes operator? For example, if you want to read only attributes starting with RT, then it could be RT.*?

Telcontar120

If you can create a dataset of the attribute names (using the text file from the other program) then you should be able to use it with Loop Examples and use a macro to grab those names one example at a time and feed them into another Loop Attributes to select the attributes one at a time and then put them all back together again with joins.  I think that would do what you want (although there may certainly be a more elegant solution out there!).

 

 

hughesfleming68

Thanks to both Thomas and Brian,

 

I will play around with both options and see how things work. There is always something new to learn. This is an amazing forum.

 

Kind regards,

 

Alex