对数分布

Common types include the distribution of uniform distribution, distribution, distribution of 30 cents, and the distribution of beta log-normal distribution.

常用的分布类型包括均匀分布、正态分布、三角分布、贝塔分布和对数正态分布。

To summarize two-dimensional non-normal joint distribution in use, such as Bivariate Weibull Distribution, Bivariate Log-normal Distribution, Bivariate Gumbel Distribution, and Bivariate Gamma Distribution.

归纳总结了已经出现的非正态二维联合概率分布模型，如二维威布尔分布、二维对数正态分布、二维冈贝尔分布及二维伽玛分布等。

The objective of this paper is to evaluate various spatial interpolation methods, including ordinary Kriging, simple Kriging, lognormal Kriging, universal Kriging, disjunctive Kriging and inverse distance weighting interpolation for estimating soil surface Hg content with lognormal distribution, the linear and second-order polynomial trend, and t...

以分布类型为对数正态分布，同时具有一阶和二阶趋势效应的土壤重金属Hg为例，分别应用普通克立格法，简单克立格法，对数正态克立格法，泛克立格法，析取克立格法和距离反比权重法等 6种内插方法对其进行了估值，综合比较了各种内插方法的预测误差、统计特征值及插值结果分布图。

In this paper, the statistical characteristics of one plane and one helicopter's RCS dynamic measurement data are studied by using the χ^2 distributing, log-normal distribution and Rayleigh distributing model, along with the Kolmogorov fit test to goodness, the fitting results in some notableness level are acquired by using the three models for different aspect angles for two targets, and the degree of freedom distribution of χ^2 model in all aspect angles is obtained for two targets' RCS data.

文中以某歼击机和直升机为对象，应用χ^2分布、对数正态分布和瑞利分布模型，以及Kolmogorov拟合优度检验方法，研究其RCS动态测量数据的统计分布特征，得到了在一定显著性水平下，两种目标在不同视向角下对三种模型的拟合效果，同时得到应用χ^2分布拟合时模型半自由度随视向角的分布情况。

For the first time, a checking point method is proposed by using equivalent logarithmic normal probability distribution, and its application is studied for calculating durability reliability of reinforced concrete structures.

根据在役结构的特点，提出了用对数正态分布拟合未知概型的随机变量的方法；首次提出了当量对数正态型概率分布的验算点法，并研究了其在钢筋混凝土结构耐久性可靠度中的应用；对功能函数非线性引起的误差进行了深入的研究，提出了误差判别方法。

The main purpose of the thesis is choosing the more superior distribution among normal distribution, logarithmic normal distribution, weibull distribution, beta distribution and gamma distribution when they are used for fitting and forecasting ten main trees diameter distribution of natural secondary forest in baotianman on basis of analyzing and comparing the data from the 32 plots of natural secondary forest in baotianman.

以宝天曼天然次生林32块样地的调查数据为依据，分别以正态分布、对数正态分布，Weibull分布，Beta分布，Gamma分布拟合及预测宝天曼自然保护区天然次生林10种主要乔木树种直径分布，并对其适用性进行分析、比较，选出最适合于拟合及预测该林分直径结构的分布。

When normal distribution of subordinate function was considered, we can further deduce fussy reliable formulas that forces and intensities were lognormal distribution, that forces and intensities were weibull distribution, that forces were exponential distribution and intensities were normal distribution, that forces and intensities were exponential distribution. 3. Coincide methods of skip-ratio curve were gotten by deducing and skip-ratio functions of standard road in common use was gotten by theoretic and algebraic calculation.

并以此为基础选取了广义而精确的正态分布隶属函数，进一步推导了应力和强度均为对数正态分布时的模糊可靠性公式、应力和强度均为威布尔分布时的模糊可靠性公式、应力为正态分布和强度为威布尔分布时的模糊可靠性公式、应力为指数分布和强度为正态分布时的模糊可靠性公式、应力和强度均为指数分布时的模糊可靠性公式。

In this paper, a computer programme is discussed, which, as a mathema-tical model, can be used to calculate the probability distribution as respects random variable-normal, lognormal, binomial, negative binomial and Poisson distributions, and can be used for x2 test of goodness of fit as well.

本文是计算随机变量概率分布的数学模型—正态分布，对数正态分布、二项分布、负二项分布。普阿松分布及检验X~2适度检验的一个计算机程序。

In this paper, the conditional mean and its applications to Bayesian estimation of the parameters and reliability measures of common failure distribution which include two-parameter exponential distribution, left truncated two-parameter exponential distribution, normal distribution and lognormal distribution are discussed.

本文讨论了条件均值对某些常见失效分布的参数与可靠性测度的Bayes估计的应用，这些分布包括，双参数指数分布，左截尾双参数指数分布，正态分布与对数正态分布。

The distribution property of combinatorial sequences is a basic problem in combinatorics. One of the most important properties is unimodality which includes unimodal, log-concave, log-convex and PF properties.

组合序列分布性质的研究是是组合数学中最原始最基本的问题之一，其中一类重要的分布性质是单峰型性质，包括单峰性、对数凹性、对数凸性和PF性质等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。