SEXP eigenanatomyCppHelper(
NumericMatrix X,
SEXP r_mask,
RealType sparseness,
IntType nvecs,
IntType its,
IntType cthresh,
RealType z,
RealType smooth,
// NumericMatrix initializationMatrix,
Rcpp::List initializationList,
IntType covering,
RealType ell1,
IntType verbose,
IntType powerit,
RealType priorWeight )
{
enum { Dimension = ImageType::ImageDimension };
typename ImageType::RegionType region;
typedef typename ImageType::PixelType PixelType;
typedef typename ImageType::Pointer ImagePointerType;
typedef double Scalar;
typedef itk::ants::antsSCCANObject<ImageType, Scalar> SCCANType;
typedef typename SCCANType::MatrixType vMatrix;
typename SCCANType::Pointer sccanobj = SCCANType::New();
typename ImageType::Pointer mask = Rcpp::as<ImagePointerType>( r_mask );
bool maskisnull = mask.IsNull();
// deal with the initializationList, if any
unsigned int nImages = initializationList.size();
if ( ( nImages > 0 ) && ( !maskisnull ) )
{
itk::ImageRegionIteratorWithIndex<ImageType> it( mask,
mask->GetLargestPossibleRegion() );
vMatrix priorROIMat( nImages , X.cols() );
priorROIMat.fill( 0 );
for ( unsigned int i = 0; i < nImages; i++ )
{
typename ImageType::Pointer init =
Rcpp::as<ImagePointerType>( initializationList[i] );
unsigned long ct = 0;
it.GoToBegin();
while ( !it.IsAtEnd() )
{
PixelType pix = it.Get();
if ( pix >= 0.5 )
{
pix = init->GetPixel( it.GetIndex() );
priorROIMat( i, ct ) = pix;
ct++;
}
++it;
}
}
sccanobj->SetMatrixPriorROI( priorROIMat );
nvecs = nImages;
}
sccanobj->SetPriorWeight( priorWeight );
sccanobj->SetLambda( priorWeight );
// cast hack from Rcpp type to sccan type
std::vector<double> xdat =
Rcpp::as< std::vector<double> >( X );
const double* _xdata = &xdat[0];
vMatrix vnlX( _xdata , X.cols(), X.rows() );
vnlX = vnlX.transpose();
sccanobj->SetGetSmall( false );
vMatrix priorROIMat;
// sccanobj->SetMatrixPriorROI( priorROIMat);
// sccanobj->SetMatrixPriorROI2( priorROIMat );
sccanobj->SetCovering( covering );
sccanobj->SetSilent( ! verbose );
if( ell1 > 0 )
{
sccanobj->SetUseL1( true );
}
else
{
sccanobj->SetUseL1( false );
}
sccanobj->SetGradStep( vnl_math_abs( ell1 ) );
sccanobj->SetMaximumNumberOfIterations( its );
sccanobj->SetRowSparseness( z );
sccanobj->SetSmoother( smooth );
if ( sparseness < 0 ) sccanobj->SetKeepPositiveP(false);
sccanobj->SetSCCANFormulation( SCCANType::PQ );
sccanobj->SetFractionNonZeroP( fabs( sparseness ) );
sccanobj->SetMinClusterSizeP( cthresh );
sccanobj->SetMatrixP( vnlX );
// sccanobj->SetMatrixR( r ); // FIXME
sccanobj->SetMaskImageP( mask );
RealType truecorr = 0;
if( powerit == 1 )
{
truecorr = sccanobj->SparseReconHome( nvecs );
}
else if ( priorWeight > 1.e-12 )
truecorr = sccanobj->SparseReconPrior( nvecs, true );
else truecorr = sccanobj->SparseRecon(nvecs);
/*
else if( powerit != 0 )
{
truecorr = sccanobj->SparseArnoldiSVD(nvecs);
}
else if( svd_option == 4 )
{
truecorr = sccanobj->NetworkDecomposition( nvecs );
}
else if( svd_option == 5 )
{
truecorr = sccanobj->LASSO( nvecs );
}
else if( svd_option == 2 )
{
truecorr = sccanobj->CGSPCA(nvecs); // cgspca
}
else if( svd_option == 6 )
{
truecorr = sccanobj->SparseRecon(nvecs); // sparse (default)
}
else if( svd_option == 7 )
{
// sccanobj->SetPriorScaleMat( priorScaleMat);
sccanobj->SetMatrixPriorROI( priorROIMat);
sccanobj->SetFlagForSort();
sccanobj->SetLambda(sccanparser->Convert<double>( option->GetFunction( 0 )->GetParameter( 3 ) ) );
truecorr = sccanobj->SparseReconPrior(nvecs, true); // Prior
}
else
{
truecorr = sccanobj->SparseArnoldiSVDGreedy( nvecs ); // sparse (default)
}
*/
// solutions should be much smaller so may not be a big deal to copy
// FIXME - should not copy, should map memory
vMatrix solV = sccanobj->GetVariatesP();
NumericMatrix eanatMat( solV.cols(), solV.rows() );
unsigned long rows = solV.rows();
for( unsigned long c = 0; c < solV.cols(); c++ )
{
for( unsigned int r = 0; r < rows; r++ )
{
eanatMat( c, r ) = solV( r, c );
}
}
vMatrix solU = sccanobj->GetMatrixU();
NumericMatrix eanatMatU( solU.rows(), solU.cols() );
rows = solU.rows();
for( unsigned long c = 0; c < solU.cols(); c++ )
{
for( unsigned int r = 0; r < rows; r++ )
{
eanatMatU( r, c) = solU( r, c);
}
}
return(
Rcpp::List::create(
Rcpp::Named("eigenanatomyimages") = eanatMat,
Rcpp::Named("umatrix") = eanatMatU,
Rcpp::Named("varex") = truecorr )
);
}
SEXP sccanCppHelper(
NumericMatrix X,
NumericMatrix Y,
SEXP r_maskx,
SEXP r_masky,
RealType sparsenessx,
RealType sparsenessy,
IntType nvecs,
IntType its,
IntType cthreshx,
IntType cthreshy,
RealType z,
RealType smooth,
Rcpp::List initializationListx,
Rcpp::List initializationListy,
IntType covering,
RealType ell1,
IntType verbose,
RealType priorWeight )
{
enum { Dimension = ImageType::ImageDimension };
typename ImageType::RegionType region;
typedef typename ImageType::PixelType PixelType;
typedef typename ImageType::Pointer ImagePointerType;
typedef double Scalar;
typedef itk::ants::antsSCCANObject<ImageType, Scalar> SCCANType;
typedef typename SCCANType::MatrixType vMatrix;
typename SCCANType::Pointer sccanobj = SCCANType::New();
typename ImageType::Pointer maskx = Rcpp::as<ImagePointerType>( r_maskx );
typename ImageType::Pointer masky = Rcpp::as<ImagePointerType>( r_masky );
bool maskxisnull = maskx.IsNull();
bool maskyisnull = masky.IsNull();
// deal with the initializationList, if any
unsigned int nImagesx = initializationListx.size();
if ( ( nImagesx > 0 ) && ( !maskxisnull ) )
{
itk::ImageRegionIteratorWithIndex<ImageType> it( maskx,
maskx->GetLargestPossibleRegion() );
vMatrix priorROIMatx( nImagesx , X.cols() );
priorROIMatx.fill( 0 );
for ( unsigned int i = 0; i < nImagesx; i++ )
{
typename ImageType::Pointer init =
Rcpp::as<ImagePointerType>( initializationListx[i] );
unsigned long ct = 0;
it.GoToBegin();
while ( !it.IsAtEnd() )
{
PixelType pix = it.Get();
if ( pix >= 0.5 )
{
pix = init->GetPixel( it.GetIndex() );
priorROIMatx( i, ct ) = pix;
ct++;
}
++it;
}
}
sccanobj->SetMatrixPriorROI( priorROIMatx );
nvecs = nImagesx;
}
unsigned int nImagesy = initializationListy.size();
if ( ( nImagesy > 0 ) && ( !maskyisnull ) )
{
itk::ImageRegionIteratorWithIndex<ImageType> it( masky,
masky->GetLargestPossibleRegion() );
vMatrix priorROIMaty( nImagesy , Y.cols() );
priorROIMaty.fill( 0 );
for ( unsigned int i = 0; i < nImagesy; i++ )
{
typename ImageType::Pointer init =
Rcpp::as<ImagePointerType>( initializationListy[i] );
unsigned long ct = 0;
it.GoToBegin();
while ( !it.IsAtEnd() )
{
PixelType pix = it.Get();
if ( pix >= 0.5 )
{
pix = init->GetPixel( it.GetIndex() );
priorROIMaty( i, ct ) = pix;
ct++;
}
++it;
}
}
sccanobj->SetMatrixPriorROI2( priorROIMaty );
nvecs = nImagesy;
}
sccanobj->SetPriorWeight( priorWeight );
sccanobj->SetLambda( priorWeight );
// cast hack from Rcpp type to sccan type
std::vector<double> xdat =
Rcpp::as< std::vector<double> >( X );
const double* _xdata = &xdat[0];
vMatrix vnlX( _xdata , X.cols(), X.rows() );
vnlX = vnlX.transpose();
std::vector<double> ydat =
Rcpp::as< std::vector<double> >( Y );
const double* _ydata = &ydat[0];
vMatrix vnlY( _ydata , Y.cols(), Y.rows() );
vnlY = vnlY.transpose();
// cast hack done
sccanobj->SetGetSmall( false );
sccanobj->SetCovering( covering );
sccanobj->SetSilent( ! verbose );
if( ell1 > 0 )
{
sccanobj->SetUseL1( true );
}
else
{
sccanobj->SetUseL1( false );
}
sccanobj->SetGradStep( vnl_math_abs( ell1 ) );
sccanobj->SetMaximumNumberOfIterations( its );
sccanobj->SetRowSparseness( z );
sccanobj->SetSmoother( smooth );
if ( sparsenessx < 0 ) sccanobj->SetKeepPositiveP(false);
if ( sparsenessy < 0 ) sccanobj->SetKeepPositiveQ(false);
sccanobj->SetSCCANFormulation( SCCANType::PQ );
sccanobj->SetFractionNonZeroP( fabs( sparsenessx ) );
sccanobj->SetFractionNonZeroQ( fabs( sparsenessy ) );
sccanobj->SetMinClusterSizeP( cthreshx );
sccanobj->SetMinClusterSizeQ( cthreshy );
sccanobj->SetMatrixP( vnlX );
sccanobj->SetMatrixQ( vnlY );
// sccanobj->SetMatrixR( r ); // FIXME
sccanobj->SetMaskImageP( maskx );
sccanobj->SetMaskImageQ( masky );
sccanobj->SparsePartialArnoldiCCA( nvecs );
// FIXME - should not copy, should map memory
vMatrix solP = sccanobj->GetVariatesP();
NumericMatrix eanatMatp( solP.cols(), solP.rows() );
unsigned long rows = solP.rows();
for( unsigned long c = 0; c < solP.cols(); c++ )
{
for( unsigned int r = 0; r < rows; r++ )
{
eanatMatp( c, r ) = solP( r, c );
}
}
vMatrix solQ = sccanobj->GetVariatesQ();
NumericMatrix eanatMatq( solQ.cols(), solQ.rows() );
rows = solQ.rows();
for( unsigned long c = 0; c < solQ.cols(); c++ )
{
for( unsigned int r = 0; r < rows; r++ )
{
eanatMatq( c, r ) = solQ( r, c );
}
}
return(
Rcpp::List::create(
Rcpp::Named("eig1") = eanatMatp,
Rcpp::Named("eig2") = eanatMatq )
);
}