public virtual GMMDiag getMarginal(bool[] mask)
{
int num = 0;
int num2 = mask.Length;
for (int i = 0; i < num2; i++)
{
int j = mask[i] ? 1 : 0;
if (j != 0)
{
num++;
}
}
GMMDiag gmmdiag = new GMMDiag(this.getNgauss(), num);
num2 = 0;
for (int i = 0; i < this.ncoefs; i++)
{
if (mask[i])
{
for (int j = 0; j < this.ngauss; j++)
{
gmmdiag.setMean(j, num2, this.getMean(j, i));
gmmdiag.setVar(j, num2, this.getVar(j, i));
}
num2++;
}
}
for (int i = 0; i < this.ngauss; i++)
{
gmmdiag.setWeight(i, this.getWeight(i));
}
gmmdiag.precomputeDistance();
return(gmmdiag);
}
public virtual GMMDiag getGauss(int i)
{
GMMDiag gmmdiag = new GMMDiag(1, this.getNcoefs());
ByteCodeHelper.arraycopy_primitive_4(this.means[i], 0, gmmdiag.means[0], 0, this.getNcoefs());
ByteCodeHelper.arraycopy_primitive_4(this.covar[i], 0, gmmdiag.covar[0], 0, this.getNcoefs());
gmmdiag.setWeight(0, 1f);
gmmdiag.precomputeDistance();
return(gmmdiag);
}
public virtual GMMDiag merge(GMMDiag g, float w1)
{
GMMDiag gmmdiag = new GMMDiag(this.getNgauss() + g.getNgauss(), this.getNcoefs());
for (int i = 0; i < this.getNgauss(); i++)
{
ByteCodeHelper.arraycopy_primitive_4(this.means[i], 0, gmmdiag.means[i], 0, this.getNcoefs());
ByteCodeHelper.arraycopy_primitive_4(this.covar[i], 0, gmmdiag.covar[i], 0, this.getNcoefs());
gmmdiag.setWeight(i, this.getWeight(i) * w1);
}
for (int i = 0; i < g.getNgauss(); i++)
{
ByteCodeHelper.arraycopy_primitive_4(g.means[i], 0, gmmdiag.means[this.ngauss + i], 0, this.getNcoefs());
ByteCodeHelper.arraycopy_primitive_4(g.covar[i], 0, gmmdiag.covar[this.ngauss + i], 0, this.getNcoefs());
gmmdiag.setWeight(this.ngauss + i, g.getWeight(i) * (1f - w1));
}
gmmdiag.precomputeDistance();
return(gmmdiag);
}
