1、

Sampling was conducted with the method of contiguous grid quadrate, Dispersion Index ( v/ m ratio) was taken as the index of aggregation intensity, and the simulation tests for Poisson and Negative binomial distribution were performed.

采用邻接格子样方法取样,运用扩散系数作为聚集强度的测度指标,并进行泊阿松分布和负二项分布的Χ2拟合检验;

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2、

negative binomial distribution is used commonly to model count data, especially in bayesian inference.

负二项分布在统计学中有着广泛的应用,被普遍应用于点计数据以及贝叶斯推断中。

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