Examples of mikera.vectorz.AVector

mikera.vectorz.AVector
Main abstract base class for all types of vector Contains default implementations for most vector operations which can be overriden to achieve better performance in derived classes. @author Mike

    // efficient join always succeeds
    
    if (a instanceof JoinedVector) {
      return join((JoinedVector)a);
    }
    AVector ej=right.tryEfficientJoin(a);
    if (ej!=null) return new JoinedVector(left,ej);
    
    return JoinedMultiVector.wrap(new AVector[] {left,right,a});
  }

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    return JoinedMultiVector.wrap(new AVector[] {left,right,a});
  }
  
  public AVector join(JoinedVector a) {
    AVector ej=right.tryEfficientJoin(a.left);
    if (ej==null) {
      return JoinedMultiVector.wrap(new AVector[] {left,right,a.left,a.right});
    } else {
      return JoinedMultiVector.wrap(new AVector[] {left,ej,a.right});
    }

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    }
  }
  
  @Override
  public AVector addCopy(AVector a) {
    AVector lsum = left.addCopy(a.subVector(0, split));
    AVector rsum = right.addCopy(a.subVector(split, length-split));
    return lsum.join(rsum);
  }

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  @Override
  public AVector tryEfficientJoin(AVector v) {
    if (v instanceof JoinedMultiVector) return join((JoinedMultiVector)v);
    if (v instanceof JoinedVector) return join((JoinedVector)v);
    
    AVector ej=vecs[n-1].tryEfficientJoin(v);
    if (ej!=null) {
      AVector[] nvecs=vecs.clone();
      nvecs[n-1]=ej;    
      return new JoinedMultiVector(nvecs);
    } else {

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    return new JoinedMultiVector(nvecs);
  }
  
  public AVector join(JoinedVector v) {
    AVector ej=vecs[n-1].tryEfficientJoin(v.left);
    if (ej!=null) {
      AVector[] nvecs=new AVector[n+1];
      System.arraycopy(vecs, 0, nvecs, 0, n);
      nvecs[n-1]=ej;
      nvecs[n]=v.right;

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    return new UnmodifiableVector(source.exactClone());
  }
  
  @Override
  public AVector subVector(int offset, int length) {
    AVector ssv=source.subVector(offset, length);
    if (ssv==source) return this;
    return new UnmodifiableVector(ssv);
  }

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  public void addToArray(double[] data, int offset) {
    int b1=-lowerBandwidth();
    int b2=upperBandwidth();
    int cc=columnCount();
    for (int b=b1; b<=b2; b++) {
      AVector band=getBand(b);
      int di = offset+this.bandStartColumn(b)+cc*bandStartRow(b);
      band.addToArray(data, di, cc+1);
    }
  }

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    int minBand=-lowerBandwidthLimit();
    int maxBand=upperBandwidthLimit();
    if (minBand<=-rowCount()) throw new VectorzException("Invalid lower limit: "+minBand);
    if (maxBand>=columnCount()) throw new VectorzException("Invalid upper limit: "+maxBand);
    for (int i=minBand; i<=maxBand; i++) {
      AVector v=getBand(i);
      if (bandLength(i)!=v.length()) throw new VectorzException("Invalid band length: "+i);
    }
  }

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    return true;
  }
  
  @Override
  public double dotProduct(double[] data, int offset) {
    AVector r=source.getRow(row);
    double result=0.0;
    for (int i=0; i<length; i++) {
      result+=data[offset+i]*r.unsafeGet(i);
    }
    return result;
  }

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    c11.add(v);
  }
  
  @Override
  public void add(AVector v) {
    AVector v0=v.subVector(0, columnSplit);
    AVector v1=v.subVector(columnSplit,cols-columnSplit);
    c00.add(v0);
    c01.add(v1);
    c10.add(v0);
    c11.add(v1);
  }

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mikera.arrayz.INDArray

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mikera.arrayz.TestArrays

mikera.arrayz.TestMiscArrayOps

mikera.indexz.Index

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