1 #ifndef HISTOGRAM

     2 #define HISTOGRAM 1

     3 

     4 class Histogram

     5 {

     6 /* just an array of integers with some statistical information */

     7 /* consider implementing with an intarray (from hw1) instead */

     8  private:

     9   double mean;

    10   double variance;

    11   double standard_dev;

    12 

    13   int num_rows;

    14   int* row_weights;

    15   double cut_angle;/* this doesn't really belong here, but who cares */

    16   void initialize_mean();

    17   void initialize_variance();

    18   void initialize_standard_dev(); 

    19  public:

    20   display();

    21   Histogram(int n_rows, int* r_weights, double c_angle);

    22   inline int get_row_weight(int row)

    23       {

    24 	return row_weights[row];

    25       }

    26   inline int get_num_rows()

    27       {

    28 	return num_rows;

    29       }

    30   inline double get_mean()

    31       {

    32 	return mean;

    33       }

    34   inline double get_standard_dev()

    35       {

    36 	return standard_dev;

    37       }

    38   inline double get_variance()

    39       {

    40 	return variance;

    41       }

    42   inline double get_cut_angle()

    43       {

    44 	return cut_angle;

    45       }

    46 };

    47 

    48 #endif

    49