1 | // $Id$ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2006 Jari Häkkinen, Peter Johansson |
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5 | |
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6 | This file is part of the yat library, http://trac.thep.lu.se/yat |
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7 | |
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8 | The yat library is free software; you can redistribute it and/or |
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9 | modify it under the terms of the GNU General Public License as |
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10 | published by the Free Software Foundation; either version 2 of the |
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11 | License, or (at your option) any later version. |
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12 | |
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13 | The yat library is distributed in the hope that it will be useful, |
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | General Public License for more details. |
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17 | |
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18 | You should have received a copy of the GNU General Public License |
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19 | along with this program; if not, write to the Free Software |
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20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
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21 | 02111-1307, USA. |
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22 | */ |
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23 | |
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24 | #include "FeatureSelector.h" |
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25 | #include "MatrixLookup.h" |
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26 | #include "MatrixLookupWeighted.h" |
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27 | |
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28 | #include <list> |
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29 | |
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30 | namespace theplu { |
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31 | namespace yat { |
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32 | namespace classifier { |
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33 | |
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34 | |
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35 | FeatureSelector::FeatureSelector(size_t N, size_t first) |
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36 | : first_(first), N_(N) |
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37 | { |
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38 | } |
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39 | |
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40 | |
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41 | FeatureSelector::~FeatureSelector() |
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42 | { |
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43 | for (std::list<const MatrixLookup*>::iterator i=garbage_.begin(); |
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44 | i!=garbage_.end(); ++i) |
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45 | delete *i; |
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46 | for (std::list<const MatrixLookupWeighted*>::iterator i= |
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47 | garbage_weighted_.begin(); i!=garbage_weighted_.end(); ++i) |
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48 | delete *i; |
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49 | } |
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50 | |
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51 | |
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52 | const std::vector<size_t> FeatureSelector::features(void) const |
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53 | { |
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54 | return features_; |
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55 | } |
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56 | |
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57 | |
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58 | const MatrixLookup& FeatureSelector::get(const MatrixLookup& matrix) |
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59 | { |
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60 | garbage_.push_back(new MatrixLookup(matrix,features_,true)); |
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61 | return *garbage_.back(); |
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62 | } |
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63 | |
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64 | |
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65 | const MatrixLookupWeighted& |
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66 | FeatureSelector::get(const MatrixLookupWeighted& matrix) |
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67 | { |
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68 | garbage_weighted_.push_back(new MatrixLookupWeighted(matrix,features_, |
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69 | true)); |
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70 | return *garbage_weighted_.back(); |
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71 | } |
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72 | |
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73 | }}} // of namespace classifier, yat, and theplu |
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