import java.io.IOException;

public class Perceptron {
Reader rd = new Reader();
double[][] patterns;
double[] answers;
double[] enters;
double[] hidden;
double outer;
double[][] wEH;
double[] wHO;
//double[][] patterns = {{-23,17},{-19,-34},{-42,-3},{-43,34},{-45,-21},
{41,-14},{27,-18},{19,34}};
//int[] answers = {0,1,1,0,1,0,0,0};

Perceptron(double[][] patterns, double[] answers ) throws IOException {

this.patterns = patterns;
this.answers = answers;
    enters = new double[patterns[0].length];
    hidden = new double[3];
    wEH = new double[enters.length][hidden.length];
    wHO = new double[hidden.length];

    initWeights();
    study();


    double[][] input ={ {-43,-45}};
    for (int p = 0; p < input.length; p++) {
        for (int i = 0; i < enters.length; i++)
            enters[i] = input[p][i];

        countOuter();


        if (outer==1){

            System.out.println("Точка принадлежит прямой");
        }

        else{
            System.out.println("Точка не принадлежит прямой");
        }

    }

}

public void initWeights() {
    for (int i = 0; i < enters.length; i++) {
        for (int j = 0; j < wEH.length; j++) {
            wEH[i][j] = Math.random() * 0.2 + 0.1;
        }
    }
    for (int i = 0; i < wHO.length; i++)
        wHO[i] = Math.random() * 0.2 + 0.1;
}

public void countOuter() {
    for (int i = 0; i < hidden.length; i++) {
        hidden[i] = 0;
        for (int j = 0; j < enters.length; j++) {
            hidden[i] += enters[j] * wEH[j][i];
        }
        if (hidden[i] > 0.5) hidden[i] = 1;
        else hidden[i] = 0;
    }
    outer = 0;
    for (int i = 0; i < hidden.length; i++) {
        outer += hidden[i] * wHO[i];
    }
    if (outer > 0.5) outer = 1;
    else outer = 0;
}

public void study() {
    double[] err = new double[hidden.length];
    double gError = 0;
    do {
        gError = 0;
        for (int p = 0; p < patterns.length; p++) {
            for (int i = 0; i < enters.length; i++)
                enters[i] = patterns[p][i];

            countOuter();

            double lErr = answers[p] - outer;
            gError += Math.abs(lErr);

            for (int i = 0; i < hidden.length; i++)
                err[i] = lErr * wHO[i];
            for (int i = 0; i < enters.length; i++) {
                for (int j = 0; j < hidden.length; j++) {
                    wEH[i][j] += 0.1 * err[j] * enters[i];

                }
            }
            for (int i = 0; i < hidden.length; i++)
                wHO[i] += 0.1 * lErr * hidden[i];
        }
    } while (gError != 0);
}

import java.io.IOException;

public class Main {

public static void main(String[] args) throws IOException {

   Reader test = new Reader();
    test.setInputFile("E:/Lab2_data (3).xls");
    // считываем номер колонки из консоли
    int ColumnNumber = 0;
            //Integer.parseInt(String.valueOf(System.in.read()));
    //передаем номер методу read()
    test.read(ColumnNumber);

        double[][]patterns = test.getInput();
        double[]answers  = test.getOutputs();

    Perceptron p = new Perceptron(patterns , answers);

 }
 }