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BPsimulationofpopulation
- ”BP.m“文件是BP神经网络整个模型的源程序; “train.fig”是训练时最后得到的图片; “程序运行的人口数量原始数据.fig”是预测结果绘制的图; “程序运行时matlab命令窗口的内容.txt”是运行程序是在matlab命令窗口显示的东西; “程序运行完产生的数据.mat”是程序运行完毕产生的数据。 .bmp文件和.fig文件一样
1
- 用MATLAB编写的,用人口迁移算法求函数的最大值。可运行。
lesilefix1.rar
- 莱斯利人口预测模型 莱斯利矩阵为91阶方针表示从0岁到90岁各个年龄段的生育率和存活率集合,leslie
ESPMA
- 自己编写的改进人口迁移算法求解函数最优值,已实现-I have written to improve the migration algorithm optimal value function has been to achieve
matlab model
- 用matlab实现了一个通用的数学模型,人口增长模型-Using matlab to achieve a common mathematical model, population growth model
shuxuejianmo_4
- 讨论资金积累、国民收入、与人口增长的关系. (1)若国民平均收入x与按人口平均资金积累y成正比,说明仅当总资金积累的相对增长率k大于人口的相对增长率r时,国民平均收入才是增长的. (2)作出k(x)和r(x)的示意图,分析人口激增会引起什么后果. -Discussion of capital accumulation, income, and the relationship between population growth. (1) If the national average
Untitled
- 人口迁移算法,此程序实现人口迁移算法,用于求解无约束连续函数最小化问题。对于最大化问题,请先将其加负号转化为最小化问题-Population migration algorithm to achieve this process migration algorithm for solving unconstrained minimization problem of continuous functions. For the maximization problem, please add th
primary_math_modeling
- 数学建模的基本概念和实例(刹车距离、蛛网模型、生产计划、人口预测)-Mathematical modeling of the basic concepts and examples (braking distance, cobweb model, production planning, population projections)
renkoumoxing
- matlab环境下数学建模中人口模型的资料 包含源程序-mathematical modeling matlab environment, the information contained in the source population model
PMA-Matlab
- 人口迁移算法,此程序实现人口迁移算法,用于求解无约束连续函数最小化问题,仅供学习参考。-Migration algorithm, this process of population migration algorithm for solving unconstrained continuous function minimization problem, study reference purposes only.
GM(1-1)
- 著名的灰色预测模型,用于人口、经济、资源等的发展预测- Famous gray prediction model for population, economy, resources, development of forecast
Exponential-growth-model
- 由1790-1980年间美国每隔十年的人口记录表为基础进行分析。-Exponential growth model of population
program
- 用logistic和差分方程预测上海市人口和老龄化比例的matlab程序-profile for difference equation to forcast population
hanban-paiduilun--renkouzengzhang
- 本人自己做的三篇数学建模论文 一个是基于主成分分析的人口增长预测 一个是基于排队论的高速公路收费口的设置 一个是关于航班的-I own the three papers of mathematical modeling is based on principal component analysis of a population forecast is based on queuing theory, a highway toll gate, setting one on the flight
leslie
- leslie模型可以利用某一初始时刻种群的年龄结构现状,动态地预测种群年龄结构及数量随时间的演变过程。相比马尔萨斯的人口模型和Logistic 模型,leslie模型可以长期预测种群结构。(The Leslie model can predict the populative structure and number of the population with time by using the initial age structure of the population. Compare
Leslie人口预测模型程序
- 能够利用该Leslie模型的matlab程序预测人口数量及结构(Able to take advantage of the Leslie model of matlab to predict population quantity and structure)
指数增长和阻滞增长人口预测
- 指数增长和阻滞增长模型的人口预测的应用MATLAB代码(Application of MATLAB code for population prediction in exponential growth and retardation growth models)
Logistic.m
- 预测未来几年的人口,采用逻辑回归模型预测,用的数据是87-20年的数据(Forecasting the population of the next few years)
基于BP神经网络的人口预测
- 算法在基于BP神经网络的基础上,对人口展开预测。
人口预测
- 时间序列的人口预测,采用三次指数平滑,还有灰色预测,有数据提供参考。(The population forecast of time series adopts three exponential smoothing and grey forecast, which provides reference for data.)