#include <BALL/QSAR/ldaModel.h>
Public Member Functions | |
Constructors and Destructors | |
LDAModel (const QSARData &q) | |
~LDAModel () | |
Accessors | |
void | train () |
Vector< double > | predict (const vector< double > &substance, bool transform=1) |
void | setParameters (vector< double > &v) |
vector< double > | getParameters () const |
void | saveToFile (string filename) |
void | readFromFile (string filename) |
Private Attributes | |
Attributes | |
Matrix< double > | sigma_ |
double | lambda_ |
vector< Matrix< double > > | mean_vectors_ |
class for support vector classification
Definition at line 41 of file ldaModel.h.
BALL::QSAR::LDAModel::LDAModel | ( | const QSARData & | q | ) |
BALL::QSAR::LDAModel::~LDAModel | ( | ) |
vector<double> BALL::QSAR::LDAModel::getParameters | ( | ) | const [virtual] |
Reimplemented from BALL::QSAR::Model.
Vector<double> BALL::QSAR::LDAModel::predict | ( | const vector< double > & | substance, | |
bool | transform = 1 | |||
) | [virtual] |
Predicts the activities of a given substance
substance | the substance which activity is to be predicted in form of a vecor containing the values for *all* descriptors (if neccessary, relevant descriptors will be selected automatically) | |
transform | determines whether the values for each descriptor of the given substance should be transformed before prediction of activity. If (transform==1): each descriptor value is transformed according to the centering of the respective column of QSARData.descriptor_matrix used to train this model. If the substance to be predicted is part of the same input data (e.g. same SD-file) as the training data (as is the case during cross validation), transform should therefore be set to 0. |
Implements BALL::QSAR::Model.
void BALL::QSAR::LDAModel::readFromFile | ( | string | filename | ) | [virtual] |
reconstruct a saved Model from a file
Implements BALL::QSAR::Model.
void BALL::QSAR::LDAModel::saveToFile | ( | string | filename | ) | [virtual] |
save Model to a file
Implements BALL::QSAR::Model.
void BALL::QSAR::LDAModel::setParameters | ( | vector< double > & | ) | [virtual] |
sets the model parameters according to the given values.
Reimplemented from BALL::QSAR::Model.
void BALL::QSAR::LDAModel::train | ( | ) | [virtual] |
Starts training the model.
Implements BALL::QSAR::Model.
double BALL::QSAR::LDAModel::lambda_ [private] |
Definition at line 78 of file ldaModel.h.
vector<Matrix<double> > BALL::QSAR::LDAModel::mean_vectors_ [private] |
vector containing one matrix for each modelled activity. Each matrix contains a mean vector of a class in each line
Definition at line 81 of file ldaModel.h.
Matrix<double> BALL::QSAR::LDAModel::sigma_ [private] |
covariance matrix of descriptors
Definition at line 75 of file ldaModel.h.