负二项分布 meaning in English
negative binomial distribution
Examples
- Two factors are considered including distribution functions and detected flow data , and a vehicle generator of micro - scale is proposed based on detection period
用于描述一定时间内交通流分布规律的离散随机函数包括泊松分布、二项分布、负二项分布等。 - Through a probability problem , a connection is showed between binomial distribution and negative binomial distribution and therefore a composed formula is set up , which is proved by way of probability and algebra
摘要通过一个概率问题，给出二项分布与负二项分布的一种联系，从而建立一个组合公式，并由概率思维方式与代数方式给出证明。 - The bivariate poisson models of contingent claim times about the homogeneous portfolios are studied , and an independent condition of the two variables is proved , and then the mixed bivariate poisson models of contingent claim times about the heterogeneous portfolios with dependent risks are studied , and the last , the optimum bms formula about the heterogeneous portfolios with dependent risks are reached
研究了同质风险相依条件下的二元poisson索赔次数模型，得到了二元poisson索赔次数模型独立的充分必要条件同时研究了非同质风险相依条件下二元混合poisson索赔次数模型，得到了相应的非同质风险保单组合的索赔次数模型为双变量负二项分布的概率函数在此基础上将保险精算中的最优bms由独立情形推广到了风险相依的情形，并得到了相应的最优bms的计算公式。 - The competition among those species like s . tsinyunensis , dryopteris erythrosora and veronicastrum stenostachyum etc . , is intense in the communities , which may be one of the reasons why s . tsinyunensis is going to be endangered and with a very restricted distribution . the distribution patterns of the seven populations of s . tsinyunensis are clumped among the eight populations we studied , except population v of random distribution . the spatial pattern of 6 populations of s . tsinyunensis have high consistency with the negative binominal distribution , while another 2 populations , i . e . , i and iii are poisson distributions
6 )缙云黄芩各种群空间分布格局基本呈聚集分布，其中7个种群的分布格局类型是聚集分布，其聚集强度较高，另有一个种群为随机分布；其种群的离散分布拟合结果也严格符合一定的数学模式，其中负二项分布、 poisson分布分别是该物种种群空间分布的理论分布模式，其中6个种群拟合出的结果是负二项分布，种群i和种群m拟合出的结果是poisson分布。 - We studied its distribution pattem by using the following measures f the test for fitting to the poisson , negative binomial and neyman a distribution . at the same time , we use negative binomial parametef , dispersal index , patchiness index , cassie s index and clumping index , estimated the aggregation intensity . the results showed that the distribution pattern is typically aggregated , and the intensity of aggregation vari
经统计分析，青岛百合复合种群、各局部种群内个体的分布格局离散分布拟合的结果符合负二项分布；各聚集强度参数中，丛生指标）和cassie指标（二k ）均大于o ，负h项参数限）均较小，扩散系数k卜扩散型指数）和聚块性指标（ m m ）均大于1 ，以上这些表明各个局部种群的分布格局都为聚集分布。