Examples of gnu.trove.iterator.TIntFloatIterator.key()

Class gnu.trove.iterator.TIntFloatIterator

Examples of gnu.trove.iterator.TIntFloatIterator.key()

gnu.trove.iterator.TIntFloatIterator.key()
Provides access to the key of the mapping at the iterator's position. Note that you must advance() the iterator at least once before invoking this method. @return the key of the entry at the iterator's current position.

    if(sv instanceof HashSparseVector){
      TIntFloatIterator it = ((HashSparseVector) sv).data.iterator();
      while(it.hasNext()){
        it.advance();
        float v = it.value()*w;
        data.adjustOrPutValue(it.key(), v,v);
      }
    }else if(sv instanceof BinarySparseVector){
      TIntIterator it = ((BinarySparseVector) sv).data.iterator();
      while(it.hasNext()){
        int i = it.next();

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    float v =0f;
    if(sv.size() < data.size()){
      TIntFloatIterator it = sv.data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += data.get(it.key())*it.value();
      }
    }else{
      TIntFloatIterator it = data.iterator();      
      while(it.hasNext()){
        it.advance();

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      }
    }else{
      TIntFloatIterator it = data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += sv.data.get(it.key())*it.value();
      }
    }
    TIntFloatIterator it = sv.data.iterator();
    float sum=0.0f;
    while (it.hasNext()) {

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    }
    TIntFloatIterator it = sv.data.iterator();
    float sum=0.0f;
    while (it.hasNext()) {
      it.advance();
      if(it.key()==0)
        continue;
      sum+=it.value()*it.value();
    }
    v/=Math.abs(sum)<0.00001?1:Math.sqrt(sum);
    it = data.iterator();

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    v/=Math.abs(sum)<0.00001?1:Math.sqrt(sum);
    it = data.iterator();
    sum=0.0f;
    while (it.hasNext()) {
      it.advance();
      if(it.key()==0)
        continue;
      sum+=it.value()*it.value();
    }
    v/=Math.abs(sum)<0.00001?1:Math.sqrt(sum);
    return v;

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    float v =0f;
    if(sv.size() < data.size()){
      TIntFloatIterator it = sv.data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += data.get(it.key())*it.value();
      }
    }else{
      TIntFloatIterator it = data.iterator();      
      while(it.hasNext()){
        it.advance();

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      }
    }else{
      TIntFloatIterator it = data.iterator();      
      while(it.hasNext()){
        it.advance();
        v += sv.data.get(it.key())*it.value();
      }
    }
    return v;
  }

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  public float dotProduct(float[] vector) {
    float v =0f;
    TIntFloatIterator it = data.iterator();      
    while(it.hasNext()){
      it.advance();
      v += vector[it.key()]*it.value();
    }
    return v;
  }


  /* (non-Javadoc)

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  public void scaleDivide(float c) {
    TIntFloatIterator it = data.iterator();
    while(it.hasNext()){
      it.advance();
      float v = it.value()/c;
      data.put(it.key(), v);
    }


  }
  /**
   * 欧氏距离

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      }else if(increa==1){
        it1.advance();
      }else if(increa==2){
        it2.advance();
      }
      if(it1.key()<it2.key()){
        dist += it1.value()*it1.value();
        increa = 1;
      }else if(it1.key()>it2.key()){
        dist += it2.value()*it2.value();
        increa = 2;

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