skip of table header in MLData (#1962)

modules/ml/include/opencv2/ml/ml.hpp

@@ -2040,6 +2040,9 @@ public:
     const CvMat* get_responses();
     const CvMat* get_missing() const;
 
+	void set_header_lines_number( int n );
+	int get_header_lines_number() const;
+
     void set_response_idx( int idx ); // old response become predictors, new response_idx = idx
                                       // if idx < 0 there will be no response
     int get_response_idx() const;
@@ -2091,6 +2094,8 @@ protected:
     CvMat* var_idx_out; // mat
     CvMat* var_types_out; // mat
 
+	int header_lines_number;
+
     int response_idx;
 
     int train_sample_count;