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matlab
用matlab实现相加，相乘，时间反转，及三维曲面的绘制(matlab)
- 2010-01-14 17:09:31下载
- 积分：1
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shuxuejianmo_8
说明： （拟合）
用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。
如果作2或4次多项式拟合，结果如何？
((Fitting) with a given polynomial, y = x3-6x2+5 x-3, generated a set of data (xi, yi, i = 1,2, ..., n), then add a random disturbance yi ( can be generated rand (0,1) uniformly distributed random number, or rands generated N (0,1) distribution of random numbers), and then added with xi and yi for random interference of the 3 times polynomial fitting, and the original coefficient. If 2 or 4 times for polynomial fitting, the result?)
- 2009-07-24 23:02:50下载
- 积分：1
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randomfrog
随机蛙跳源代码，寻找最优变量，输出最小二乘回归(Random frog)
- 2015-11-23 12:29:47下载
- 积分：1
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优秀论文及配套源码 SVM Short-term-Load-Forecasting
优秀论文及配套源码。首先阐述了负荷预测的应用研究现状，概括了负荷预测的特点及其影响因素，归纳了短期负荷预测的常用方法，并分析了各种方法的优劣；接着介绍了作为支持向量机（SVM）理论基础的统计学习理论和SVM的原理，推导了SVM回归模型；本文采用最小二乘支持向量机（LSSVM）模型，根据浙江台州某地区的历史负荷数据和气象数据，分析影响预测的各种因素，总结了负荷变化的规律性，对历史负荷数据中的“异常数据”进行修正，对负荷预测中要考虑的相关因素进行了归一化处理。LSSVM中的两个参数对模型有很大影响，而目前依然是基于经验的办法解决。对此，本文采用粒子群优化算法对模型参数进行寻优，以测试集误差作为判决依据，实现模型参数的优化选择，使得预测精度有所提高。实际算例表明，本文的预测方法收敛性好、有较高的预测精度和较快的训练速度。(first expounds the recent application research of load forecasting, summarized the characteristics of load forecasting and influencing factors, summed up common methods of short-term load forecasting, and analyzed the advantages and disadvantages of each method then introduced statistical learning theory and the principle of SVM as the basis of support vector machine (SVM ) theory, SVM regression model is derived this paper adopted least squares support vector machine (LSSVM) model, according to the historical load data and meteorological data of a certain area of Zhejiang Taizhou, Analysised the various factors affecting the forecast, summed up the regularity of load change , amended "outliers" in the historical load data,the load forecasting factors to be considered were normalized. The two parameters of LSSVM have a significant impact on the model, but it is still soluted based on the experience currently. So, this paper adopted particle swarm optimization algorithm to optimized )
- 2021-04-01 17:09:08下载
- 积分：1
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MATLAByingyong
说明： MATLAB矩阵及其运算变量和数据操作 MATLAB矩阵 MATLAB运算矩阵分析(MATLAB matrix and its variables and data manipulation operations MATLAB Matrix Matrix Analysis MATLAB computing)
- 2008-12-02 08:56:40下载
- 积分：1
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atmosnonstd
program in matlab code
- 2012-03-29 10:51:20下载
- 积分：1
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B3
说明： 三次B样曲线的绘制,用TURBO C 完成(cubic B-spline curve rendering, complete with Turbo C.)
- 2007-02-08 17:55:11下载
- 积分：1
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DTFT-Transform
数字信号处理中的基本DTFT变换代码，有非常详尽的解说和推导过程(Digital Signal Processing DTFT fundamental transformation code, a very detailed explanation and derivation)
- 2015-04-13 11:18:32下载
- 积分：1
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Lynch_R2015b
混沌系统的控制、庞家莱截面、分岔图、解微分方程相关程序(Chaotic system control, Pangjiayai section, bifurcation diagram, solution differential equation related program)
- 2017-04-12 16:47:26下载
- 积分：1
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MATLAB
说明： 是matlab一些常用的算法集合，方便在计算编程时直接调用(Matlab algorithms are a collection of some commonly used to facilitate programming in the calculation of the direct call)
- 2010-03-24 17:09:12下载
- 积分：1
