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 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).              | 
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 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).           | 
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 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).           | 
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 * [4]  Vardeman & Gezelter, in progress (2009).                         | 
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 * [4] Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010). | 
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 * [4] , Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). * | 
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 * | 
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– | 
 * | 
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 *  Created by Xiuquan Sun on 05/09/06. | 
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 *  @author  Xiuquan Sun  | 
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 *  @version $Id: Hxy.cpp,v 1.8 2009-11-25 20:01:59 gezelter Exp $ | 
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 *  @version $Id$ | 
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 * | 
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 */ | 
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      errbin_sum_sq.clear(); | 
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      errbin_sq.clear(); | 
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      for(int i=0; i < bin.size(); i++) | 
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      for(unsigned int i=0; i < bin.size(); i++) | 
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        bin[i].clear(); | 
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      for(int i=0; i < samples.size(); i++) | 
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      for(unsigned int i=0; i < samples.size(); i++) | 
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        samples[i].clear(); | 
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      mag.clear(); | 
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    int nFrames = reader.getNFrames(); | 
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    nProcessed_ = nFrames/step_; | 
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     | 
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    for(int k=0; k < bin.size(); k++) | 
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    for(unsigned int k=0; k < bin.size(); k++) | 
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      bin[k].resize(nFrames); | 
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    for(int k=0; k < samples.size(); k++) | 
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    for(unsigned int k=0; k < samples.size(); k++) | 
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      samples[k].resize(nFrames); | 
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    RealType lenX_, lenY_; | 
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    RealType gridX_, gridY_; | 
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    RealType halfBoxX_, halfBoxY_; | 
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    int binNoX, binNoY; | 
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    RealType interpsum, value; | 
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    int ninterp, px, py, newp; | 
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    int newx, newy, newindex, index; | 
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    int newindex, index; | 
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    int new_i, new_j, new_index; | 
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 | 
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    RealType freq_x, freq_y, zero_freq_x, zero_freq_y, freq; | 
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    RealType maxfreqx, maxfreqy, maxfreq; | 
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    int whichbin; | 
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    int nMolecules; | 
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    std::fill(sum_bin.begin(), sum_bin.end(), 0.0); | 
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    std::fill(avg_bin.begin(), avg_bin.end(), 0.0); | 
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    std::fill(errbin_sum_sq.begin(), errbin_sum_sq.end(), 0.0); | 
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    std::fill(errbin_sq.begin(), errbin_sq.end(), 0.0); | 
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     | 
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    for(int i=0; i < bin.size(); i++) | 
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    for(unsigned int i=0; i < bin.size(); i++) | 
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      std::fill(bin[i].begin(), bin[i].end(), 0.0); | 
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    for(int i=0; i < samples.size(); i++) | 
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    for(unsigned int i=0; i < samples.size(); i++) | 
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      std::fill(samples[i].begin(), samples[i].end(), 0); | 
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    for (int istep = 0; istep < nFrames; istep += step_) { | 
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      reader.readFrame(istep); | 
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      currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot(); | 
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      nMolecules = info_->getNGlobalMolecules(); | 
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      Mat3x3d hmat = currentSnapshot_->getHmat(); | 
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