本文整理了Java中org.ujmp.core.Matrix.selectRows()方法的一些代码示例，展示了Matrix.selectRows()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Matrix.selectRows()方法的具体详情如下：
包路径：org.ujmp.core.Matrix
类名称：Matrix
方法名：selectRows

Matrix.selectRows介绍

暂无

代码示例

代码示例来源：origin: ujmp/universal-java-matrix-package

public double getDouble(long... coordinates) {
  Matrix m1 = getSource().selectRows(Ret.LINK, coordinates[ROW]);
  Matrix m2 = getSource().selectRows(Ret.LINK, coordinates[COLUMN]);
  return m1.minkowskiDistanceTo(m2, p, ignoreNaN);
}

代码示例来源：origin: ujmp/universal-java-matrix-package

private List<Sortable<Double, Matrix>> getSortedNeighbors(long... coordinates) {
  List<Sortable<Double, Matrix>> neighbors = new ArrayList<Sortable<Double, Matrix>>();
  List<Integer> candidates = getCandidates(coordinates);
  for (int candidateRow : candidates) {
    double dist = distanceMatrix.getAsDouble(coordinates[ROW], candidateRow);
    Matrix candidate = getSource().selectRows(Ret.LINK, candidateRow);
    neighbors.add(new Sortable<Double, Matrix>(dist, candidate));
  }
  Collections.sort(neighbors);
  return neighbors;
}

代码示例来源：origin: jdmp/java-data-mining-package

public synchronized Matrix get(Object key) {
  Matrix m = map.get(key);
  if (m == null) {
    Matrix all = dataSet.getMatrix(key);
    if (all == null) {
      return null;
    } else if (all.getRowCount() < dataSet.size()) {
      return null;
    } else {
      m = all.selectRows(Ret.LINK, index);
      map.put(String.valueOf(key), m);
    }
  }
  return m;
}

代码示例来源：origin: ujmp/universal-java-matrix-package

public Object getObject(long... coordinates) {
  if (selection == null) {
    List<Integer> rows = new ArrayList<Integer>();
    for (int i = 0; i < getSource().getRowCount(); i++) {
      rows.add(i);
    }
    Collections.shuffle(rows);
    selection = getSource().selectRows(Ret.LINK, rows);
  }
  return selection.getAsObject(coordinates);
}

代码示例来源：origin: ujmp/universal-java-matrix-package

public Object getObject(long... coordinates) {
  if (selection == null) {
    List<Integer> rows = new ArrayList<Integer>();
    for (int i = 0; i < count; i++) {
      int s = MathUtil.nextInteger(0, (int) getSource().getRowCount());
      rows.add(s);
    }
    selection = getSource().selectRows(Ret.LINK, rows);
  }
  return selection.getAsObject(coordinates);
}

代码示例来源：origin: ujmp/universal-java-matrix-package

public double getDouble(long... coordinates) {
  Matrix m1 = getSource().selectRows(Ret.LINK, coordinates[ROW]);
  Matrix m2 = getSource().selectRows(Ret.LINK, coordinates[COLUMN]);
  double aiSum = 0;
  double a2Sum = 0;
  double b2Sum = 0;
  for (long i = 0; i < m1.getColumnCount(); i++) {
    double a = m1.getAsDouble(0, i);
    double b = m2.getAsDouble(0, i);
    if (ignoreNaN) {
      if (!MathUtil.isNaNOrInfinite(a) && !MathUtil.isNaNOrInfinite(b)) {
        aiSum += a * b;
        a2Sum += a * a;
        b2Sum += b * b;
      }
    } else {
      aiSum += a * b;
      a2Sum += a * a;
      b2Sum += b * b;
    }
  }
  return aiSum / (Math.sqrt(a2Sum) * Math.sqrt(b2Sum));
}

代码示例来源：origin: ujmp/universal-java-matrix-package

private Matrix getDistanceMatrix() {
  Matrix distanceMatrix = Matrix.Factory.zeros(getSource().getRowCount(), getSource()
      .getRowCount());
  for (int r = 0; r < getSource().getRowCount(); r++) {
    for (int c = 0; c < getSource().getRowCount(); c++) {
      if (r != c) {
        Matrix m1 = getSource().selectRows(Ret.LINK, r);
        Matrix m2 = getSource().selectRows(Ret.LINK, c);
        double dist = m1.euklideanDistanceTo(m2, true);
        distanceMatrix.setAsDouble(dist, r, c);
      }
    }
  }
  return distanceMatrix;
}

代码示例来源：origin: ujmp/universal-java-matrix-package

public void saveSettings() throws Exception {
  String resultDir = BenchmarkUtil.getResultDir(getConfig());
  File envFile = new File(resultDir + File.separator + "env.csv");
  File propFile = new File(resultDir + File.separator + "props.csv");
  File confFile = new File(resultDir + File.separator + "conf.csv");
  File versionFile = new File(resultDir + File.separator + "versions.csv");
  new SystemEnvironmentMatrix().exportTo().file(envFile).asDenseCSV();
  Matrix props = new SystemPropertiesMatrix().replaceRegex(Ret.NEW, "\r\n", " ");
  props = props.replaceRegex(Ret.NEW, "\n", " ");
  props.exportTo().file(propFile).asDenseCSV();
  getConfig().exportTo().file(confFile).asDenseCSV();
  Matrix libraries = new MatrixLibraries();
  System.out.println(libraries);
  Matrix versions = libraries.selectRows(Ret.NEW, 0, 1).transpose();
  versions.exportTo().file(versionFile).asDenseCSV();
}

代码示例来源：origin: ujmp/universal-java-matrix-package

Matrix columnLabels = m.selectRows(Ret.NEW, 0); // extract label
  Matrix row = allmeans.selectRows(Ret.NEW, jamaRow);
  Matrix m = Matrix.Factory.vertCat(row, allmeans.getRowCount());
  Matrix scaled = allmeans.divide(Ret.NEW, false, m).power(Ret.NEW, -1)

代码示例来源：origin: ujmp/universal-java-matrix-package

public ExtractAnnotation(Matrix m, int dim) {
  super(dim, m);
  size = Coordinates.copyOf(m.getSize());
  size[dim]--;
  setMetaData(new DefaultMapMatrix<String, Object>(new TreeMap<String, Object>()));
  getMetaData().put(Matrix.LABEL, m.getLabelObject());
  if (dim == ROW) {
    MapMatrix<String, Object> a = m.getMetaData();
    if (a != null) {
      Matrix ai = (Matrix) a.get(Matrix.DIMENSIONMETADATA + COLUMN);
      if (ai != null) {
        ai = ai.deleteRows(Ret.NEW, 0);
        getMetaData().put(Matrix.DIMENSIONMETADATA + COLUMN, ai);
      }
    }
    getMetaData().put(Matrix.DIMENSIONMETADATA + ROW, m.selectRows(Ret.NEW, 0));
  } else if (dim == COLUMN) {
    MapMatrix<String, Object> a = m.getMetaData();
    if (a != null) {
      Matrix ai = (Matrix) a.get(Matrix.DIMENSIONMETADATA + ROW);
      if (ai != null) {
        ai = ai.selectColumns(Ret.NEW, 0);
        getMetaData().put(Matrix.DIMENSIONMETADATA + ROW, ai);
      }
    }
    getMetaData().put(Matrix.DIMENSIONMETADATA + COLUMN, m.selectColumns(Ret.NEW, 0));
  } else {
    throw new RuntimeException("only supported for 2D matrices");
  }
}