@Test public void testMeanWithNoEntry() { RunningStats runningStats = new RunningStats(); Assert.assertEquals(0.0d, runningStats.mean(), 0.001); }
public double mean() { return mean1; }
RunningStats { public double mean() { return mean1; } }
RunningStats { public double mean() { return mean1; }  }
RunningStats { public double mean() { return mean1; }  void push(double x); double mean(); double variance(); double stddev(); double skewness(); double kurtosis(); }
RunningStats { public double mean() { return mean1; }  void push(double x); double mean(); double variance(); double stddev(); double skewness(); double kurtosis();  }