Context The dataset is used for a practice of feature selection. Content xtrain.txt contains features of training set. there are around 30 anonymous features in the file. We don't have to know the meanings of features. the goal is to find best subset with n features. ytrain.txt contains target of training set. class labels { 1,2,3,4} Acknowledgements Inspiration I appreciate suggestions / algorithms/ methods about feature selection. Your data will be in front of the world's largest data science community. What questions do you want to see answered?