# Feature Selection

andre_marques
Member Posts:

**2**Contributor I
Hello.

I'm doing a work where i need experiment several methods of Feature Selection in rapid miner and then compare them. I'm testing rapid miner to do this work but i don't be well succeed with some operators. One of them are ANOVA. What i have to do to use use this operator. ???

For example in the operator CFSFeatureSetEvaluator i use this inside another operator (FeatureSelection) but with ANOVA i don't now what to do ???

Someone can help?

Regards,

André.

I'm doing a work where i need experiment several methods of Feature Selection in rapid miner and then compare them. I'm testing rapid miner to do this work but i don't be well succeed with some operators. One of them are ANOVA. What i have to do to use use this operator. ???

For example in the operator CFSFeatureSetEvaluator i use this inside another operator (FeatureSelection) but with ANOVA i don't now what to do ???

Someone can help?

Regards,

André.

0

## Answers

1,751RM FounderThe ANOVA operator can only used to calculate if two performance vectors (which in fact could guide the feature selection process) significantly differ.

Cheers,

Ingo

2Contributor ICheers,

André.

1,751RM Foundercomparingtwo performances with respect to the question if they significanctly differ. But ANOVA cannot be used tocreatea performance measure.You could get an idea of what can be done with ANOVA by looking into the samples delivered together with RapidMiner. There is also a sample process showing how ANOVA can be used.

Cheers,

Ingo