package strings;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2007</p>
 * <p>Company: </p>
 * @author Mikhail Kuravskiy
 * @version 1.0
 */

public class task2 {
  public task2() {
  }

  static String exp =      "----HHHHHHHHHHHHHHHHHHHHHHH----------HHHHHHHHHHHHHHHHHHHHH------HHHHHHHHHH----HHHHHHHHHHHHHHHHHHHHHH-----------------------HHHHHHHHHHHHHHHHHHHHHH----------HHHHHHHHHHHHHHHHH--------HHHHHHHHHH------HHHHHHHHHHHHHHHHHHHHHHH----------------";
  static String pred =     "-------HHHHHHHHHHHHHHHHHHH-------HHHHHHHHHHHHHHHHHHHHHHHHH-----------------------HHHHHHHHHHHHHHHHHHHH------------------------HHHHHHHHHHHHHHHHHHH-------------------------------------------------------------------------------------------";

  static double Signs(double a, int s) {
    double r;
    r = (double)((int)(a * Math.pow(10, s))) / Math.pow(10, s);
    return r;
  }

  public static void main(String[] args) {
    task2 task21 = new task2();

    int f_p = 0;
    int f_n = 0;
    int t_p = 0;
    int t_n = 0;

    for (int i = 0; i < exp.length(); i++) {
      if (exp.charAt(i) == pred.charAt(i)) {
        if (exp.charAt(i) == '-') {
          t_n++;
        }
        else {
          t_p++;
        }
      }
      else {
        if (exp.charAt(i) == '-') {
          f_p++;
        }
        else {
          f_n++;
        }
      }
    }

    System.out.println("False positive: " + f_p);
    System.out.println("False negative: " + f_n);
    System.out.println("True positive: " + t_p);
    System.out.println("True negative: " + t_n);

    System.out.println("Чувствительность: " + Signs(((double)t_p / ((double)t_p + (double)f_n)), 4));
    System.out.println("Специфичность: " + Signs(((double)t_n / ((double)t_n + (double)f_p)), 4));
    System.out.println("Точность: " + Signs(((double)t_p / ((double)t_p + (double)f_p)), 4));
    System.out.println("Сверхпредсказание: " + Signs(((double)f_p / ((double)f_p + (double)t_p)), 4));
    System.out.println("Недопредсказание: " + Signs(((double)f_n / ((double)f_n + (double)t_n)), 4));

  }

}