public static LinearSolverSparse <DMatrixSparseCSC, DMatrixRMaj> lu(FillReducing permutation)
{
ComputePermutation <DMatrixSparseCSC> cp = FillReductionFactory_DSCC.create(permutation);
LuUpLooking_DSCC lu = new LuUpLooking_DSCC(cp);
return(new LinearSolverLu_DSCC(lu));
}
public static LinearSolverSparse <DMatrixSparseCSC, DMatrixRMaj> qr(FillReducing permutation)
{
ComputePermutation <DMatrixSparseCSC> cp = FillReductionFactory_DSCC.create(permutation);
QrLeftLookingDecomposition_DSCC qr = new QrLeftLookingDecomposition_DSCC(cp);
return(new LinearSolverQrLeftLooking_DSCC(qr));
}
public static LinearSolverSparse <DMatrixSparseCSC, DMatrixRMaj> cholesky(FillReducing permutation)
{
ComputePermutation <DMatrixSparseCSC> cp = FillReductionFactory_DSCC.create(permutation);
CholeskyUpLooking_DSCC chol = (CholeskyUpLooking_DSCC)DecompositionFactory_DSCC.cholesky();
return(new LinearSolverCholesky_DSCC(chol, cp));
}
public static ComputePermutation <DMatrixSparseCSC> create(FillReducing type)
{
switch (type)
{
case FillReducing.NONE:
return(null);
case FillReducing.RANDOM:
// TODO : Implement!
throw new NotImplementedException();
//return new ComputePermutation<DMatrixSparseCSC>(true, true) {
//@Override
//public void process(DMatrixSparseCSC m)
//{
// prow.reshape(m.numRows);
// pcol.reshape(m.numCols);
// fillSequence(prow);
// fillSequence(pcol);
// Random _rand;
// synchronized(rand) {
// _rand = new Random(rand.nextInt());
// }
// UtilEjml.shuffle(prow.data, prow.Length, 0, prow.Length, _rand);
// UtilEjml.shuffle(pcol.data, pcol.Length, 0, pcol.Length, _rand);
//}
//};
case FillReducing.IDENTITY:
// TODO : Implement!
throw new NotImplementedException();
//return new ComputePermutation<DMatrixSparseCSC>(true,true) {
// //@Override
// public void process(DMatrixSparseCSC m) {
// prow.reshape(m.numRows);
// pcol.reshape(m.numCols);
// fillSequence(prow);
// fillSequence(pcol);
// }
//};
default:
throw new InvalidOperationException("Unknown " + type);
}
}
public static LUSparseDecomposition_F64 <DMatrixSparseCSC> lu(FillReducing permutation)
{
ComputePermutation <DMatrixSparseCSC> cp = FillReductionFactory_DSCC.create(permutation);
return(new LuUpLooking_DSCC(cp));
}
public static QRSparseDecomposition <DMatrixSparseCSC> qr(FillReducing permutation)
{
ComputePermutation <DMatrixSparseCSC> cp = FillReductionFactory_DSCC.create(permutation);
return(new QrLeftLookingDecomposition_DSCC(cp));
}
