Statistics histogram data processing scheme is designed. Standard deviation of frequency modulation is found out according to normaldistribution characteristics.
设计了统计直方图数据处理方案，按照正态分布的特性找出了寄生频率调制的标准偏差。
2
Empirical evidences show that the distributions of high frequency time series are "fat tail" type distribution rather than normal distribution with "light tail" as those in traditional modeling.
经验表明高频时间序列的分布常是“肥尾”型的，而非传统建模中的“薄尾”型的正态分布。
3
The frequency of the wood fiber length in different parts of the trunk is in evenly normaldistribution.