PWMatrix PWMConversionAlgorithmNLG::convert(const PFMatrix& matrix) {
    int size = (matrix.getType() == PFM_MONONUCLEOTIDE) ? 4 : 16;
    int sum[16];
    memset(sum, 0, size*sizeof(int));
    int all_hits = 0;
    for (int i = 0; i < size; i++) {
        for (int j = 0, n = matrix.getLength(); j < n; j++) {
            sum[i] += matrix.getValue(i, j);
            all_hits += matrix.getValue(i, j);
        }
    }
    if (all_hits <= 0) {
        return PWMatrix();
    }
    float p[16];
    for (int i = 0; i < size; i++) {
        p[i] = sum[i];
        p[i] /= all_hits;
        if (qAbs(p[i]) <= 1e-9) {
            return PWMatrix();
        }
    }

    QVarLengthArray<float> res(size*matrix.getLength());
    for (int i = 0; i < size; i++) {
        for (int j = 0, n = matrix.getLength(); j < n; j++) {
            res[matrix.index(i, j)] = -matrix.getValue(i, j)*log(p[i]);
        }
    }

    PWMatrix w(res, (matrix.getType() == PFM_MONONUCLEOTIDE) ? PWM_MONONUCLEOTIDE : PWM_DINUCLEOTIDE);
    w.setInfo(UniprobeInfo(matrix.getProperties()));
    return w;
}
示例#2
0
Document* PFMatrixFormat::loadDocument( IOAdapter* io, const U2DbiRef& dbiRef, const QVariantMap& fs, U2OpStatus& os ){
    DbiOperationsBlock opBlock(dbiRef, os);
    CHECK_OP(os, NULL);
    Q_UNUSED(opBlock);

    QList<GObject*> objs;
    IOAdapterFactory* iof = AppContext::getIOAdapterRegistry()->getIOAdapterFactoryById(io->getAdapterId());
    TaskStateInfo siPFM;
    PFMatrix m = WeightMatrixIO::readPFMatrix(iof, io->getURL().getURLString(), siPFM);
    if (siPFM.hasError()) {
        os.setError(tr("The file format is not PFM"));
    } else {
       if (m.getLength() == 0) {
            os.setError(tr("Zero length or corrupted model\nMaybe model data are not enough for selected algorithm"));
        }
    }
    CHECK_OP(os, NULL);

    PFMatrixObject *mObj = PFMatrixObject::createInstance(m, QFileInfo(io->getURL().getURLString()).baseName(), dbiRef, os, fs);
    CHECK_OP(os, NULL);
    objs.append(mObj);
    return new Document(this, io->getFactory(), io->getURL(), dbiRef, objs, fs);
}