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预测系统
灰色预测模型称为CM模型,G为grey的第一个字母,M为model的第一个字母。GM(1,1)表示一阶的,一个变量的微分方程型预测模型。GM(1,1)是一阶单序列的线性动态模型,主要用于时间序列预测。 一、GM(1,1)建模 设有数列 共有 个观察值 对 作累加生成,得到新的数列 ,其元素 (5-1) 有: 对数列 ,可建立预测模型的白化形式方程, (5-2) 式中: ——为待估计参数。分别称为发展灰数和内生控制灰数。设 为待估计参数向量 则 按最小二乘法求解, 有: (5-3) 式中: (5-4) (5-5) 将(5-3)式求得的 代入(5-2)式,并解微分方程,有 (1,1)预测模型为: (5-6)(gray forecasting model called CM model, the G-gray of a letter, the M model for the first letter. GM (1,1), a band of a variable type of differential equation models. GM (1,1) is a sequence of single-band linear dynamic model, mainly for time series prediction. A GM (1,1) model series with a total value of observation for the cumulative production, to a new series of its elements (5-1) : The series, we can establish the prediction model albino form of equation (5-2) where :-- to question the estimated parameters. The development will be known as the gray and hygiene control within a few gray. Set parameters to be estimated according to Vector least squares method, are : (5-3) where : (5-4) (5-5) (5-3) that obtained in lieu of income (5-2)- and solutions differential equations, (1 1) Fore)
- 2005-01-26 15:33:02下载
- 积分:1
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MappedxTensor
MappedTensor class matlab
- 2013-01-07 23:32:51下载
- 积分:1
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QuadraticQuadAssemble
QuadraticQuaassemble 的源程序 matlab有限元分析源程序 (QuadraticQuaassemble source matlab source Finite Element Analysis)
- 2013-11-11 13:36:05下载
- 积分:1
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CapacityAboutReflectionAndCached
使用Visual studio 工具做的实例,以此研究反射与缓存(深拷贝)的性能(the instance of reflection and deeping copy at visual c#)
- 2015-03-27 10:52:58下载
- 积分:1
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GAandassigmentmatlab
基于遗传算法的模糊指派(based on genetic algorithm Fuzzy Assignment)
- 2007-06-29 17:53:07下载
- 积分:1
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tanxin
背包问题 贪心法C++实现
功能健康,绝对无毒(Greedy Knapsack Problem C++ Achieve functional health, is absolutely non-toxic)
- 2008-04-27 19:46:02下载
- 积分:1
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DENOISE
hand image pre-processing first stage denoise
- 2010-12-03 08:58:39下载
- 积分:1
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Base-Station-Coveage
This program use matlab for analysis GSM Base station coverage signal. Use Hatta model for this simulation
- 2014-10-03 20:24:46下载
- 积分:1
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LPC-canshutiqu
用于提取LPC参数的MATLAB程序,并通过MATLAB展示出参数图形。(MATLAB program used to extract the LPC parameters, and by the graphics of MATLAB demonstrated parameters.)
- 2013-05-08 10:29:10下载
- 积分:1
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UWB7
UWB,超宽带信号分析必用的子函数,第7部分!(UWB, ultra-wideband signal analysis will be used for Functions, Part 7!)
- 2010-07-05 13:23:19下载
- 积分:1