Package org.apache.mahout.math.jet.random

Examples of org.apache.mahout.math.jet.random.Normal.nextInt()

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    SequenceFile.Writer writer = new SequenceFile.Writer(fs, conf, input, IntWritable.class,
            DoubleWritable.class);
    Random random = RandomUtils.getRandom();
    Normal normal = new Normal(5, 3, random);
    for (int i = 0; i < 1000000; i++) {
      writer.append(new IntWritable(i), new DoubleWritable((long) normal.nextInt()));
    }
    writer.close();
    double v = BasicStats.stdDev(input, output, conf);
    assertEquals(3, v, 0.02);
  }
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    SequenceFile.Writer writer = new SequenceFile.Writer(fs, conf, input, IntWritable.class,
            DoubleWritable.class);
    Random random = RandomUtils.getRandom();
    Normal normal = new Normal(5, 3, random);
    for (int i = 0; i < 1000000; i++) {
      writer.append(new IntWritable(i), new DoubleWritable((long) normal.nextInt()));
    }
    writer.close();
    double v = BasicStats.stdDev(input, output, conf);
    assertEquals(3, v, 0.02);
  }
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    SequenceFile.Writer writer = new SequenceFile.Writer(fs, conf, input, IntWritable.class,
            DoubleWritable.class);
    Random random = RandomUtils.getRandom();
    Normal normal = new Normal(5, 3, random);
    for (int i = 0; i < 1000000; i++) {
      writer.append(new IntWritable(i), new DoubleWritable((long) normal.nextInt()));
    }
    writer.close();
    double v = BasicStats.stdDev(input, output, conf);
    assertEquals(3, v, 0.02);
  }
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