Re: Merit of best subset found & Methods

Thanks for your answer

Which option allows me to constrain the correlation coefficient between [-1, 1]?

On the other hand, I will apply PLS later, however, now I am characterizing heavy metals and I need to select the best wavelengths based on the chemical analyses.

I was telling you that I have 35 soil samples and 16 vegetation samples, each with 2051 columns of wavelengths. Based on your extensive experience, what method and evaluator could you use for subsets of soils and vegetation?

I have currently used several, however, based on the results obtained, the ones that look best visually are:
1.    Evaluator: weka.attributeSelection.WrapperSubsetEval -B weka.classifiers.rules.M5Rules -F 5 -T 0.01 -R 1 -E DEFAULT -- - 
       M 4.0 -num-decimal-places 4
       Search: weka.attributeSelection.BestFirst -D 1 -N 5
2.    Evaluator: weka.attributeSelection.ClassifierSubsetEval -B weka.classifiers.trees.RandomForest -T -H "Click to set hold out 
       or test instances" -E DEFAULT -- -P 100 -I 25 -num-slots 1 -K 0 -M 1.0 -V 0.001 -S 1
       Search: weka.attributeSelection.BestFirst -D 1 -N 5

Regards
_______________________________________________
Wekalist mailing list -- [email protected]
Send posts to [email protected]
To unsubscribe send an email to [email protected]
To subscribe, unsubscribe, etc., visit https://list.waikato.ac.nz/postorius/lists/wekalist.list.waikato.ac.nz
List etiquette: http://www.cs.waikato.ac.nz/~ml/weka/mailinglist_etiquette.html