| 1. | Logistic model is one of core theory in population ecology . it almost the only model to describle population growth for about one hundred
Logistic模型是种群生态学的核心理论之一。 100多年来，它几乎是描述种群s型增长的唯一数学模型。 |
| 2. | Spss 10 . 0 software is used to do factor analysis , discriminant analysis , cluster analysis and logistic model by using those investigated data
笔者利用spss10 0统计软件中的因子分析、判别分析、聚类分析和logistic模型对调查数据进行了分析。 |
| 3. | Nevertheless , the logistic equation was not far from precise , but after a hunderd years , it was still an important and widely applied model in ecology
尽管logistic模型还远不够精细，但是直到一百多年后的今天，它仍是种群生态学中的一个重要的而且被广泛应用的模型 |
| 4. | Question . have recommended making several kinds of models of tentative prediction to the development prospect of the urbanization of our country
并介绍了可以对我国城镇化的发展前景做出初步预测的keyfitz模型、 rogers模型和联合国人口局提出的扩充的keyfitz模型以及logistic模型。 |
| 5. | In recent years , weng cycle life model , logistic mode , grey model , two - way control model , random method etc . are often used to study oil and gas reserves and output
近年来国内外对油气储量、产量及需求量常用的预测方法主要有翁氏生命旋回模型、逻辑斯谛logistic模型、灰色系统方法、 “储?产量”双向控制方法、随机方法等。 |
| 6. | As for manipulation , the manipulator took on insider trading at the same time of manipulation . the stock tended to be manipulated with high concentration ratio of equity , few liquid equity and low turn - over ratio
以股本变动时期前后的日均换手率和日均收益率为样本，本文以logistic模型建立了适合我国国情的内幕交易和市场操纵判别体系。 |
| 7. | The main conclusions and innovations of the dissertation are as follows : ( 1 ) to design an empirical analysis framework by using factor analysis , discriminant analysis , cluster analysis and logistic model
在规范分析与实证分析的基础上，本文得出了以下主要结论和创新点： ( 1 )构建了包含因子分析、判别分析、聚类分析和logistic模型在内的实证分析框架。 |
| 8. | Indicators reacting to crisis phenomena are designed with the result of risk classification and reason analysis . with the help of indicators , empiristic analysis establishes the types of risks in government obligation of all counties and constitutes discriminant model and logistic model using six factors , which is derived by cluster analysis and factor analysis
利用警情指标和警兆指标进行实证分析，确定了各区县政府债务风险类别，通过聚类分析和因子分析得出六个主因子，建立了判别模型和logistic模型，给出警限。 |
| 9. | In this thesis , based on item response theory , a number of ways to estimate the latent trait and item parameters were introduced and their advantages and disadvantages were analyzed ; what is more , empirical logistic regression and two parameters logistic model ( 2plm ) are combined to set up a linear model by logit - mapping and a new parameter - estimation method is proposed
新方法将经验logistic回归用于两参数logistic模型的参数估计，使用logit变换建立线性模型，利用线性模型的最小二乘估计得到第j个项目的项目参数向量_ j = ( _ j ， _ j )的两步估计由于x _ j含有未知的讨厌参数，的理论值也和有关，我们结合上式的结果对进行再估计。 |
| 10. | As for the problem whether to assign dividend or not , the model logistic is adopted and the spss statistics software is used . the result shows the factors that affect the dividend policy are not entirely identical in the term of different samples . on the whole , the listed company " s profit ability , liabilities conditions and assets scale are the leading factors that affect the dividend distribution
在研究是否分配股利的影响因素时，笔者采用了logistic模型，借助spss统计软件对2000 ? 2002年度的总体情况以及2000年、 2001年和2002年的各自情况分别进行了分析，研究结果表明：不同样本条件下影响上市公司是否分配股利的因素是不完全相同的，但总的来说，上市公司的盈利能力、负债状况以及资产规模是影响其是否分配股利的主要因素。 |
