隨機變量信息量計算

1、#include#include#include#include#defineN100doublearrNN=0;intn,m;doublelog2(double);voidgetarr(int,int);voiddisparr(int,int);doublegeth_x(int,int);doublegeth_y(int,int);doublegeth_xy(int,int);doubleget_y_x(int,int);doubleget_x_y(int,int);voidIu();voidmain()doublehx,hy,hxy,hx_y,hy_x;printf(:n=);scanf(

2、%d,&n);printf(:m=);scanf(%d,&m);getarr(n,m);disparr(n,m);hx=geth_x(n,m);printf(x:H(X尸fn,hx);hy=geth_y(n,m);printf(ny:H(Y尸fn,hy);hxy=geth_xy(n,m);printf(nxy:H(XY尸fn,hxy);hx_y=get_y_x(n,m);printf(ny|x:H(x|y尸fn,hx_y);hy_x=get_x_y(n,m);printf(nx|y:H(y|x尸fn,hy_x);Iu();doublelog2(doublex)return(log(1./x)/

3、log(2);voidgetarr(intn,intm)inti,j;doublesum=0;srand(unsignedint)(time(NULL);for(i=0;in;i+)for(j=0;jm;j+)arrij=(double)(rand()%100+1);sum+=arrij;for(i=0;in;i+)for(j=0;jm;j+)arrij/=sum;voiddisparr(intn,intm)inti,j;printf(.：P(x,y尸n);for(i=0;in;i+)for(j=0;jm;j+)printf(%f,arrij);printf(nn);doublegeth_x(

4、intn,intm)inti,j;doublehx=0;doublexN=0;for(i=0;in;i+)for(j=0;jm;j+)xi+=arrij;for(i=0;in;i+)hx+=log2(xi)*xi;returnhx;doublegeth_y(intn,intm)inti,j;doublehy=0;doubleyN=0;for(i=0;in;i+)for(j=0;jm;j+)yi+=arrji;for(i=0;im;i+)hy+=log2(yi)*yi;returnhy;doublegeth_xy(intn,intm)inti,j;doublehxy=0;for(i=0;in;i+)for(j=0;jm;j+)hxy+=arrij*log2(arrij);returnhxy;doubleget_y_x(intn,intm)doublexx,yy;xx=geth_xy(n,m);yy=geth_x(n,m);return(xx-yy);doubleget_x_y(intn,intm)doublexx,yy;xx=geth_xy(n,m);yy=geth_y(n,m);re