List of std() Examples

Examples of std()

org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()
This is the client side interface/handle for calling the std method for a given cf-cq combination. It was necessary to add one more call stack as its return type should be a decimal value, irrespective of what columninterpreter says. So, this methods collects the necessary parameters to compute the std and returns the double value. @param tableName @param ci @param scan @return @throws Throwable
org.apache.hadoop.mapred.JobInProgress.DataStatistics.std()

Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.addColumn(TEST_FAMILY,TEST_QUALIFIER);
    scan.setStartRow(ROWS[5]);
    scan.setStopRow(ROWS[15]);
    final ColumnInterpreter<Long, Long, EmptyMsg, LongMsg, LongMsg> ci =
        new LongColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    assertEquals(2.87, std, 0.05d);
  }


  @Test
  public void testStdWithValidRangeWithNoCQ() throws Throwable {

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addFamily(TEST_FAMILY);
    final ColumnInterpreter<Long, Long, EmptyMsg, LongMsg, LongMsg> ci =
        new LongColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci,
        scan);
    assertEquals(63.42, std, 0.05d);
  }


  @Test

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.addFamily(TEST_FAMILY);
    scan.setStartRow(ROWS[6]);
    scan.setStopRow(ROWS[7]);
    final ColumnInterpreter<Long, Long, EmptyMsg, LongMsg, LongMsg> ci =
        new LongColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    assertEquals(0, std, 0);
  }


  @Test
  public void testStdWithValidRangeWithNullCF() {

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.setStopRow(ROWS[17]);
    final ColumnInterpreter<Long, Long, EmptyMsg, LongMsg, LongMsg> ci =
        new LongColumnInterpreter();
    Double std = null;
    try {
      std = aClient.std(TEST_TABLE, ci, scan);
    } catch (Throwable e) {
    }
    assertEquals(null, std);// CP will throw an IOException about the
    // null column family, and max will be set to 0
  }

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.setStopRow(ROWS[1]);
    final ColumnInterpreter<Long, Long, EmptyMsg, LongMsg, LongMsg> ci =
        new LongColumnInterpreter();
    Double std = null;
    try {
      std = aClient.std(TEST_TABLE, ci, scan);
    } catch (Throwable e) {
    }
    assertEquals(null, std);// control should go to the catch block
  }

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    final ColumnInterpreter<Double, Double, EmptyMsg, DoubleMsg, DoubleMsg> ci = 
        new DoubleColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    assertEquals(5.766, std, 0.05d);
  }


  /**
   * need to change this

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.addColumn(TEST_FAMILY, TEST_QUALIFIER);
    scan.setStartRow(ROWS[5]);
    scan.setStopRow(ROWS[15]);
    final ColumnInterpreter<Double, Double, EmptyMsg, DoubleMsg, DoubleMsg> ci = 
        new DoubleColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    assertEquals(2.87, std, 0.05d);
  }


  /**
   * need to change this

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    AggregationClient aClient = new AggregationClient(conf);
    Scan scan = new Scan();
    scan.addFamily(TEST_FAMILY);
    final ColumnInterpreter<Double, Double, EmptyMsg, DoubleMsg, DoubleMsg> ci = 
        new DoubleColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    assertEquals(6.342, std, 0.05d);
  }


  @Test(timeout = 300000)
  public void testStdWithValidRange2WithNoCQ() throws Throwable {

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.addFamily(TEST_FAMILY);
    scan.setStartRow(ROWS[6]);
    scan.setStopRow(ROWS[7]);
    final ColumnInterpreter<Double, Double, EmptyMsg, DoubleMsg, DoubleMsg> ci = 
        new DoubleColumnInterpreter();
    double std = aClient.std(TEST_TABLE, ci, scan);
    System.out.println("std is:" + std);
    assertEquals(0, std, 0.05d);
  }


  @Test(timeout = 300000)

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Examples of org.apache.hadoop.hbase.client.coprocessor.AggregationClient.std()

    scan.setStopRow(ROWS[17]);
    final ColumnInterpreter<Double, Double, EmptyMsg, DoubleMsg, DoubleMsg> ci = 
        new DoubleColumnInterpreter();
    Double std = null;
    try {
      std = aClient.std(TEST_TABLE, ci, scan);
    } catch (Throwable e) {
    }
    assertEquals(null, std);// CP will throw an IOException about the
    // null column family, and max will be set to 0
  }

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