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| #include <stdafx.h>
#include <iostream>
#include <iomanip>
#include <math.h>
#include <windows.h>
using namespace std;
using namespace System;
double * VeroyatnostiXY(char *X, char *Y)
{
double ka,kb,kc,kd,a,b,c,d,HX,HY,*massiv;
int i;
for(i=0;i<35;i++)
{
if(X[i]=="a")
ka++;
if(X[i]=="b")
kb++;
if(X[i]=="c")
kc++;
if(X[i]=="d")
kd++;
}
cout <<"---------------------------------------------------"<<endl;
cout <<"|"<<" Sostoyanie " << "|" << setw(5) << "a" << "|" << setw(5) <<"b"<<"|"<< setw(5) << "c" << "|" <<setw(5) <<"d"<<"|"<<"vsego"<< endl;
cout <<"|"<<" Chislo nabludenii dlya X " << "|" << setw(5) << ka << "|" << setw(5) << kb << "|" << setw(5)<< kc << "|" << setw(5) << kd << "|"<<setw(5)<<ka+kb+kc+kd <<"|"<< endl;
for(i=0;i<35;i++)
{
if(Y[i]=="a")
a++;
if(Y[i]=="b")
b++;
if(Y[i]=="c")
c++;
if(Y[i]=="d")
d++;
}
cout <<"|"<<" Chislo nabludenii dlya Y " << "|" << setw(5) << a << "|" << setw(5) << b << "|" << setw(5)<< c << "|" << setw(5) << d << "|"<< setw(5)<<a+b+c+d<<"|"<< endl;
cout <<"|"<<" Veroyatnost dlya X " << setw(5) << ka/(ka+kb+kc+kd) << "|" << setw(5) << kb/(ka+kb+kc+kd) << "|" << setw(5)<< kc /(ka+kb+kc+kd)<< "|" << setw(5) << kd/(ka+kb+kc+kd) << "|"<<setw(5)<<ka/(ka+kb+kc+kd)+kb/(ka+kb+kc+kd)+kc/(ka+kb+kc+kd)+ kd/(ka+kb+kc+kd)<<"|"<< endl;
cout <<"|"<<" Veroyatnost dlya Y " << setw(5) << a/(a+b+c+d) << "|" << setw(5) << b/(a+b+c+d) << "|" << setw(5)<< c /(a+b+c+d)<< "|" << setw(5) << d/(a+b+c+d) << "|"<<setw(5)<<a/(a+b+c+d)+b/(a+b+c+d)+c/(a+b+c+d)+ d/(a+b+c+d)<<"|"<< endl;
cout<<"------------------------------------------------------\n\n"<<endl;
HX=ka/(ka+kb+kc+kd) * ( log(ka/(ka+kb+kc+kd)) / log(2.0) )+ kb/(ka+kb+kc+kd) * ( log(kb/(ka+kb+kc+kd)) / log(2.0) )+kc/(ka+kb+kc+kd) * ( log(kc/(ka+kb+kc+kd)) / log(2.0) )+kd/(ka+kb+kc+kd) * ( log(kd/(ka+kb+kc+kd)) / log(2.0) );
HY=a/(a+b+c+d) * ( log(a/(a+b+c+d)) / log(2.0) )+ b/(a+b+c+d) * ( log(b/(a+b+c+d)) / log(2.0) )+c/(a+b+c+d) * ( log(c/(a+b+c+d)) / log(2.0) )+d/(a+b+c+d) * ( log(d/(a+b+c+d)) / log(2.0) );
cout << "Entropia X ="<< HX <<endl;
cout << "Entropia Y ="<< HY <<endl;
massiv[0]=HX;
massiv[1]=HY;
return massiv;
}
void EntropiiXY(char *X, char *Y, float * massiv)
{
float HXY=0,HYX=0,ka,kb,kc,kd,a,b,c,d,nxy,nyx;
int i,ch1,ch2;
for(i=0;i<35;i++)
{
if(X[i]=="a")
ka++;
if(X[i]=="b")
kb++;
if(X[i]=="c")
kc++;
if(X[i]=="d")
kd++;
if(Y[i]=="a")
a++;
if(Y[i]=="b")
b++;
if(Y[i]=="c")
c++;
if(Y[i]=="d")
d++;
}
for(ch1=(int)"a";ch1<=(int)"d";ch1++)
for (ch2=(int)"a";ch2<=(int)"d";ch2++)
{
for(i=0;i<35;i++)
{
if((int)X[i]==ch1 && (int)Y[i]==ch2)
nxy++;
}
if(ch2==(int)"a")
HXY=HXY+(-a\(a+b+c+d) * (nxy/a) * log(nxy/a)/log(2.0));
if(ch2==(int)"b")
HXY=HXY+(-b\(a+b+c+d) * (nxy/b) * log(nxy/b)/log(2.0));
if(ch2==(int)"c")
HXY=HXY+(-c\(a+b+c+d) * (nxy/c) * log(nxy/c)/log(2.0));
if(ch2==(int)"d")
HXY=HXY+(-d\(a+b+c+d) * (nxy/d) * log(nxy/d)/log(2.0));
}
for(ch1=(int)"a";ch1<=(int)"d";ch1++)
for (ch2=(int)"a";ch2<=(int)"d";ch2++)
{
for(i=0;i<35;i++)
{
if((int)X[i]==b && (int) Y[i]==c)
nyx++;
}
if(ch2==(int)"a")
HYX=HYX+(-ka\(ka+kb+kc+kd) * (nyx/ka) * log(nyx/ka)/log(2.0));
if(ch2==(int)"b")
HYX=HYX+(-kb\(ka+kb+kc+kd) * (nyx/kb) * log(nyx/kb)/log(2.0));
if(ch2==(int)"c")
HYX=HYX+(-kc\(ka+kb+kc+kd) * (nyx/kc) * log(nyx/kc)/log(2.0));
if(ch2==(int)"d")
HYX=HYX+(-kd\(ka+kb+kc+kd) * (nyx/kd) * log(nyx/kd)/log(2.0));
}
cout<<"H(X/Y)="<<HXY<<endl;
cout<<"H(Y/X)="<<HYX<<endl;
cout<<"Entropia nezavisimih sistem ="<< massiv[0]+massiv[1]<< endl;
cout<<"Entropia zavisimih sistem ="<< massiv[0]+ HYX<< endl;
cout<<"Vzaimnaya informaciya =" << massiv[0]-HXY <<endl;
cout<<"Obyem informacii Q(X)="<<(ka+kb+kc+kd)*2<< endl;
cout<< "Obyem informacii Q(Y)=" <<(a+b+c+d)*2<< endl;
}
int main()
{
system ("cls");
char *X;
char *Y;
int i;
double *massiv;
cout << " Vvedite X" << endl;
for(i=0;i<35;i++)
cin >> X[i];
cout << " Vvedite Y" << endl;
for(i=0;i<35;i++)
cin >> Y[i];
massiv=VeroyatnostiXY (X,Y);
EntropiiXY(X,Y,massiv);
system ("pause");
return 0;
} |
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Сообщение от grizlik78
