Lazy Classifier - KNN
ML/FieldAggregates.ecl
- support KDTree endless right-node propagation
ML/Trees.ecl
- modify KDTree, changes support KNN Search:
  . use variance to select split feature (more balanced tree)
  . detect leaf branches: only one instance or same value for all instances
  . avoid endless right-node propagation
  . add FullTree and Boundaries, support KNN Search
ML/Lazy.ecl
- define instance-based learning (lazy) classifier (default, general)
- define KNN classifier (particular)
ML/NearestNeighborsSearch.ecl
- define NearestNeighborsSearch, general KNN search Algorithm (default)
- define KDTreeNNSearch, particular KNN search using KDTree
ML/Test/Explanatory/KNN_KDTree.ecl
- explanatory examples for KNN-KDTree classifier
Merge pull request #164 from DonVitorio/LazyClassifierKNN

Lazy Classifier - KNN