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数学建模
- 根据过去人口数量的变化数据预测未来的人口数量,用到了灰色预测模型(The grey prediction model is used to predict the number of people in the future according to the changes in the number of people in the past.)
灰色系统理论matlab
- 关于灰色系统关联度,灰色预测模型的matlab小程序(Matlab small program for grey system correlation degree and grey prediction model)
GM
- 灰色预测适用于小样本的预测,常用来解决一些不确定性的问题。 理论知识书上都有介绍,下面仅列出程序设计,同时方便自己比赛。(Grey prediction is suitable for the prediction of small sample, which is often used to solve some problems of uncertainty. The theoretical knowledge book is introduced, the following i
灰色关联分析软件GM
- 直接输入原始数值进行分析预测,分析误差等(Direct input of original value for analysis and prediction)
1_Hui_Se_Yu_Ce
- 运行使得绘图背景色变成白色,也可自行设置成任何颜色。 灰色预测(Running makes the drawing background color white, or it can be set to any color on its own.Grey prediction.)
灰色预测和熵权法
- 本程序将灰色预测和熵权法集合,构建出一个新的综合评价体系。该评价体系的权重结合了灰色预测和熵权法的优点。(This procedure combines the gray prediction and entropy method to construct a new comprehensive evaluation system. The weight of the evaluation system combines the advantages of gray prediction and
灰色预测e (2)
- 灰色预测是数学建模中,针对小样本数据进行预测的常用方法。本文件是调试好的程序,不仅有预测数据结果,还将预测结果和原始数据用图像进行展示,使得结果更加直观。(Gray prediction is a commonly used method for predicting small sample data in mathematical modeling. This document is a well-tuned program that not only predicts data resul
Changjiang
- matlab在数学建模中的应用一书中实现灰色预测章节的源代码(matlab in mathematical modeling in a book to achieve gray forecast chapter of the source code)
clear all
- 进行多变量灰色预测模型的计算,用以解决一些数学建模和实际问题。(The calculation of the multivariable grey forecasting model is carried out to solve some mathematical modeling and practical problems.)
gray
- 灰色预测算法,用来预测未来的相关数据,比如人口预测等等(Grey prediction algorithm is used to predict future related data, such as population prediction and so on.)
huise
- 代码为运用灰色预测的方法对数据进行预测,可以得到较好的预测效果,并且可进行一步至不多预测,很实用。(In order to predict data better, we can use the grey prediction method to predict the data, and we can get a good prediction effect.)
MATLAB
- 灰色预测GM(1,1)源码各种算法demo(Grey prediction GM (1,1) source code demo)
灰色关联度分析及灰色预测--by 数协潘天宇
- 灰色关联度分析及灰色预测,本函数是根据GM(1,1)模型所编写而成的,大致思想是: % 对于一些有噪声的数据,通过一次累加生成,使其变为较为有规律性的数据,通过对于该数据的预测从而实现对于原数据的预测。(Grey correlation analysis and grey prediction)
temp
- 数学建模中的一种评价算法--基于topsis熵权评价法和改进的灰色预测模型代码,里面的内容根据自己的情况改。(An evaluation algorithm in mathematical modeling is based on the TOPSIS entropy weight evaluation method and improved grey prediction model code, and the contents are changed according to their o
灰色预测
- 利用matlab画出预测值与实际值的趋势图以及相对误差和绝对误差的走势图(Using MATLAB to draw the trend chart of predicted and actual values, and the relative error and absolute error trend chart.)
GM(1-n)(灰色模型代码)
- GM(1.n)代码,可以实现多变量的灰色模型求解(Code for GM(1.n) model, which can work out many indepandent variables.)
灰色预测
- 灰色预测程序,通过把分散在时间轴上的离散数据看成一组连续变化的序列,采用累加和累减的方式,将灰色系统中的未知因素弱化,强化已知因素的影响程度,最后构建一个以时间为变量的连续微分方程,通过数学方法确定方程中的参数,从而实现预测目的。
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.)
灰色预测软件无需编程
- 可使用该工具进行所有灰色预测模型的预测,简单好用,无需编程
灰色预测GM(1,1)
- 在灰色理论中,背景值系数是影响多变量灰色预测模型性能的一个重要参数。然而,实际操作中为了简化建模过程,既有的多变量灰色预测模型通常将背景值系数取为0.5。