@Override
public void reduce(DRemoteTask rt) {
KMeansScore kms = (KMeansScore) rt;
if (_rows == null) {
_rows = kms._rows;
_dist = kms._dist;
} else {
Utils.add(_rows, kms._rows);
Utils.add(_dist, kms._dist);
}
}
@Override
public void reduce(CM cm) {
if (_cm != null && cm._cm != null) {
Utils.add(_cm, cm._cm);
} else {
assert (_mse != Double.NaN && cm._mse != Double.NaN);
assert (_cm == null && cm._cm == null);
_mse += cm._mse;
_count += cm._count;
}
}
@Override
public void reduce(GammaPass gp) {
Utils.add(_gss, gp._gss);
Utils.add(_rss, gp._rss);
}
@Override
public void reduce(ClassDist that) {
Utils.add(_ys, that._ys);
}
public static float[][] add(float[][] a, float[][] b) {
for(int i = 0; i < a.length; i++ ) add(a[i],b[i]);
return a;
}
public static long[][] add(long[][] a, long[][] b) {
for(int i = 0; i < a.length; i++ ) add(a[i],b[i]);
return a;
}