Package org.apache.hama.commons.io

Examples of org.apache.hama.commons.io.PipesVectorWritable

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      LOG.info("writeRandomDistributedRowMatrix path: " + path
          + " saveTransposed: " + saveTransposed);
      for (int i = 0; i < matrix.length; i++) {
        DenseDoubleVector rowVector = new DenseDoubleVector(matrix[i]);
        writer.append(new IntWritable(i), new PipesVectorWritable(rowVector));
        LOG.info("IntWritable: " + i + " PipesVectorWritable: "
            + rowVector.toString());
      }

    } catch (IOException e) {
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    for (FileStatus status : listStatus) {
      if (!status.isDir()) {
        SequenceFile.Reader reader = new SequenceFile.Reader(fs,
            status.getPath(), conf);
        IntWritable key = new IntWritable();
        PipesVectorWritable value = new PipesVectorWritable();
        int rowIdx = 0;
        while (reader.next(key, value)) {
          assertEquals("Expected rowIdx: '" + rowIdx + "' != '" + key.get()
              + "'", rowIdx, key.get());

          DoubleVector rowVector = value.getVector();

          for (int colIdx = 0; colIdx < rowVector.getLength(); colIdx++) {
            double colValue = rowVector.get(colIdx);
            assertEquals("Expected colValue: '" + matrix[rowIdx][colIdx]
                + "' != '" + colValue + "' in row: " + rowIdx + " values: "
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        writer = new SequenceFile.Writer(fs, conf, path, IntWritable.class,
            PipesVectorWritable.class);

        for (int i = 0; i < matrix.length; i++) {
          DenseDoubleVector rowVector = new DenseDoubleVector(matrix[i]);
          writer.append(new IntWritable(i), new PipesVectorWritable(rowVector));
          LOG.debug("IntWritable: " + i + " PipesVectorWritable: "
              + rowVector.toString());
        }

      } else {
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Related Classes of org.apache.hama.commons.io.PipesVectorWritable

  • org.apache.hama.commons.math.DenseDoubleVector
  • org.apache.hama.commons.math.DoubleVector
  • org.apache.hama.examples.util.VectorWritableMatrixGen
  • org.apache.hama.pipes.TestPipes
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