Feature Selection using Correlation-based method

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Hi,
I want to use the Correlation-based Feature Selection to perform feature selection.
index = corrSel(X,Y)
[s,idx]= sort(mdl.FeatureWeights,'descend');
Do you know of any other functions in Matlab that do this?
Thanks!

Accepted Answer

yanqi liu
yanqi liu on 30 Dec 2021
yes,sir,may be use the index to select feature,and then retrain model,such as
index=corrSel(feature,class)
selected_features=feature(:,index)
mdl=train(selected_features,labels(index))
  2 Comments
Nina Perf
Nina Perf on 3 Jan 2022
Thank you for the feedback!
Can you please help me with an example on "how to plot the top 5 features" using the corrSel method?
yanqi liu
yanqi liu on 4 Jan 2022
yes,sir,use top 5 features,may be set
index=corrSel(feature,class)
index=index(1:5)
selected_features=feature(:,index)
mdl=train(selected_features,labels(index))

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