How to use ReliefF algorithm for a dataset?

I want to use ReliefF feature selection algorithm for a dataset(colon), I found this code for ReliefF function from github website (I attached two file ReliefF_Zeal and test_ReliefF) and also Matlab Help is similar to this code

function [Rank, Score] = ReliefF_Zeal(X, y, K)
   [Rank, Score] = relieff(X, y, K);
end

but I don't know how to load my data (train and test) in this function, my goal was selecting 30 best features from the data,I'll be very gratefull to have your opinions. Thanks

[Demet Yesilbas]

Hi,

I am also interested about Relief-F for a project and as I understood x is your input data, y is the target, k is a number can be 10(as I understood it depends on your data). But X must have as many rows as there are elements in Y.

Answer 1

[Jingwei Too]

you may have a look on this toolbox https://www.mathworks.com/matlabcentral/fileexchange/71611-simple-filter-feature-selection-algorithms?s_tid=prof_contriblnk