Return File Library to /lib as it is needed by Local Discretization (factorize)

lib/Files/ArffFiles.h

@@ -0,0 +1,33 @@
+#ifndef ARFFFILES_H
+#define ARFFFILES_H
+
+#include <string>
+#include <vector>
+
+class ArffFiles {
+public:
+    ArffFiles() = default;
+    void load(const std::string&, bool = true);
+    void load(const std::string&, const std::string&);
+    std::vector<std::string> getLines() const;
+    unsigned long int getSize() const;
+    std::string getClassName() const;
+    std::string getClassType() const;
+    static std::string trim(const std::string&);
+    std::vector<std::vector<float>>& getX();
+    std::vector<int>& getY();
+    std::vector<std::pair<std::string, std::string>> getAttributes() const;
+    static std::vector<int> factorize(const std::vector<std::string>& labels_t);
+protected:
+    std::vector<std::string> lines;
+    std::vector<std::pair<std::string, std::string>> attributes;
+    std::string className;
+    std::string classType;
+    std::vector<std::vector<float>> X;
+    std::vector<int> y;
+    int maxLines = 0;
+    void generateDataset(int);
+    void loadCommon(const std::string&);
+};
+
+#endif