Impala Documentation

void Impala::Persistency::DistributedAccessRepositoryInFile::LoadFeatures	(	DistributedAccess *	da,
		const KernelMatrixLocator &	loc
	)			`[inline, private]`

Definition at line 138 of file DistributedAccessRepositoryInFile.h.

References Impala::Core::Matrix::DistributedAccess::AddFeature(), GetDir(), Impala::Persistency::KernelMatrixLocator::GetFeature(), Impala::Persistency::RepositoryInFileSystem::GetFile(), Impala::Persistency::File::ReadNative(), Impala::Persistency::File::ReadStrings(), RepFS(), Impala::Core::Matrix::DistributedAccess::SetHasOwnAverages(), and Impala::Persistency::File::Valid().

Referenced by Get().

00139     {
00140         String dir = GetDir(loc);
00141         String filename = loc.GetFeature() + ".input.txt";
00142         File file = RepFS().GetFile(loc, dir, filename, false, true);
00143         if (!file.Valid())
00144             return;
00145         std::vector<String> lines;
00146         file.ReadStrings(std::back_inserter(lines));
00147 
00148         std::vector<double> weights;
00149         std::vector<String> features;
00150         for (int i=0 ; i<lines.size() ; i++)
00151         {
00152             Util::StringParser p(lines[i]);
00153             Real64 weight = p.GetDouble();
00154             String feature = p.GetString(' ', false);
00155             if ((weight == 0) || (feature.empty()))
00156             {
00157                 ILOG_ERROR_HEADNODE("LoadFeatures: parse error in .input.txt");
00158                 return;
00159             }
00160             weights.push_back(weight);
00161             features.push_back(feature);
00162         }
00163         if (features.size() == 0)
00164         {
00165             ILOG_ERROR_HEADNODE("LoadFeatures: no features found");
00166             return;
00167         }
00168 
00169         filename = loc.GetFeature() + ".averages.raw";
00170         file = RepFS().GetFile(loc, dir, filename, false, true);
00171         std::vector<double> averages;
00172         if (file.Valid())
00173         {
00174             file.ReadNative(std::back_inserter(averages));
00175             if (features.size() != averages.size())
00176             {
00177                 ILOG_ERROR_HEADNODE("LoadFeatures: averages do not match");
00178                 return;
00179             }
00180         }
00181 
00182         for (int i=0 ; i<features.size() ; i++)
00183         {
00184             if (averages.size() == 0)
00185                 da->AddFeature(features[i], weights[i], -1);
00186             else
00187                 da->AddFeature(features[i], weights[i], averages[i]);
00188         }
00189         if (averages.size() != 0)
00190             da->SetHasOwnAverages(true);
00191     }

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