Normal classes: ReducePCAC Dimention reduction by Principle Component Analysis ReduceLinearC Linear dimension reduction. Develop classes: ReduceBodyC Dimension Reduction. ReduceC Dimension Reduction. ReduceSubsetBodyC Reduce dimension by taking a subset of features. ReduceSubsetC Reduce dimension by taking a subset of features. ReducePCABodyC Dimension reduction by Principle Component Analysis ReduceLinearBodyC Linear dimension reduction.