Example #1
0
void NR::kendl2(Mat_I_DP &tab, DP &tau, DP &z, DP &prob)
{
	int k,l,nn,mm,m2,m1,lj,li,kj,ki;
	DP svar,s=0.0,points,pairs,en2=0.0,en1=0.0;

	int i=tab.nrows();
	int j=tab.ncols();
	nn=i*j;
	points=tab[i-1][j-1];
	for (k=0;k<=nn-2;k++) {
		ki=(k/j);
		kj=k-j*ki;
		points += tab[ki][kj];
		for (l=k+1;l<=nn-1;l++) {
			li=l/j;
			lj=l-j*li;
			mm=(m1=li-ki)*(m2=lj-kj);
			pairs=tab[ki][kj]*tab[li][lj];
			if (mm != 0) {
				en1 += pairs;
				en2 += pairs;
				s += (mm > 0 ? pairs : -pairs);
			} else {
				if (m1 != 0) en1 += pairs;
				if (m2 != 0) en2 += pairs;
			}
		}
	}
	tau=s/sqrt(en1*en2);
	svar=(4.0*points+10.0)/(9.0*points*(points-1.0));
	z=tau/sqrt(svar);
	prob=erfcc(fabs(z)/1.4142136);
}
Example #2
0
void NR::copy(Mat_O_DP &aout, Mat_I_DP &ain)
{
	int i,j;

	int n=ain.nrows();
	for (i=0;i<n;i++)
		for (j=0;j<n;j++)
			aout[j][i]=ain[j][i];

}
Example #3
0
DP NR::anorm2(Mat_I_DP &a)
{
	int i,j;
	DP sum=0.0;

	int n=a.nrows();
	for (j=0;j<n;j++)
		for (i=0;i<n;i++)
			sum += a[i][j]*a[i][j];
	return sqrt(sum)/n;
}
Example #4
0
void NR::banmul(Mat_I_DP &a, const int m1, const int m2, Vec_I_DP &x,
	Vec_O_DP &b)
{
	int i,j,k,tmploop;

	int n=a.nrows();
	for (i=0;i<n;i++) {
		k=i-m1;
		tmploop=MIN(m1+m2+1,int(n-k));
		b[i]=0.0;
		for (j=MAX(0,-k);j<tmploop;j++) b[i] += a[i][j]*x[j+k];
	}
}
Example #5
0
void NR::cholsl(Mat_I_DP &a, Vec_I_DP &p, Vec_I_DP &b, Vec_O_DP &x)
{
	int i,k;
	DP sum;

	int n=a.nrows();
	for (i=0;i<n;i++) {
		for (sum=b[i],k=i-1;k>=0;k--) sum -= a[i][k]*x[k];
		x[i]=sum/p[i];
	}
	for (i=n-1;i>=0;i--) {
		for (sum=x[i],k=i+1;k<n;k++) sum -= a[k][i]*x[k];
		x[i]=sum/p[i];
	}
}
Example #6
0
void NR::resid(Mat_O_DP &res, Mat_I_DP &u, Mat_I_DP &rhs)
{
	int i,j;
	DP h,h2i;

	int n=u.nrows();
	h=1.0/(n-1);
	h2i=1.0/(h*h);
	for (j=1;j<n-1;j++)
		for (i=1;i<n-1;i++)
			res[i][j] = -h2i*(u[i+1][j]+u[i-1][j]+u[i][j+1]
				+u[i][j-1]-4.0*u[i][j])+rhs[i][j];
	for (i=0;i<n;i++)
		res[i][0]=res[i][n-1]=res[0][i]=res[n-1][i]=0.0;
}
Example #7
0
void NR::sprsin(Mat_I_DP &a, const DP thresh, Vec_O_DP &sa, Vec_O_INT &ija)
{
	int i,j,k;

	int n=a.nrows();
	int nmax=sa.size();
	for (j=0;j<n;j++) sa[j]=a[j][j];
	ija[0]=n+1;
	k=n;
	for (i=0;i<n;i++) {
		for (j=0;j<n;j++) {
			if (fabs(a[i][j]) >= thresh && i != j) {
				if (++k > nmax) nrerror("sprsin: sa and ija too small");
				sa[k]=a[i][j];
				ija[k]=j;
			}
		}
		ija[i+1]=k+1;
	}
}
Example #8
0
void NR::banbks(Mat_I_DP &a, const int m1, const int m2, Mat_I_DP &al,
	Vec_I_INT &indx, Vec_IO_DP &b)
{
	int i,j,k,l,mm;
	DP dum;

	int n=a.nrows();
	mm=m1+m2+1;
	l=m1;
	for (k=0;k<n;k++) {
		j=indx[k]-1;
		if (j!=k) SWAP(b[k],b[j]);
		if (l<n) l++;
		for (j=k+1;j<l;j++) b[j] -= al[k][j-k-1]*b[k];
	}
	l=1;
	for (i=n-1;i>=0;i--) {
		dum=b[i];
		for (k=1;k<l;k++) dum -= a[i][k]*b[k+i];
		b[i]=dum/a[i][0];
		if (l<mm) l++;
	}
}