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create index attribute

I want to create an attribute which contains the index (0,1,2,3,etc.) of the instances (in the same order as in the arff file).
How do I do this in RapidMiner GUI?

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steffen

Hello,

Use the operator "IDTagging". Note that if you already have an attribute with role "id", it is going to replaced. To avoid this, change the role of id-attribute temporarily using the operator "ChangeAttributeRole".

hope this was helpful

regards,

Steffen

keyser84

Thank you... I just wanted to plot id/index on x-Axis and some values on y-Axis.
I used ChangeAttributeRole operator to make it regular (otherwise it cannot be plotted).

haddock

Hi there,

If you are as lazy as I am, you can use the series plotter, then you don't even need an Id column, and you can plot the labels etc..

Just my indolent two cents...

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