MATLAB Excel Import Code for Data Science Basics
MATLAB导入Excel代码数据科学语: Julia [这就是我们正在使用的]库/软件包: matplotlib-用于数据分析 Matlab-用于数学计算快速说明: julia code = .jl文件扩展名操作:赞美~和&或|双向运算,例如>, <, >>>数学运算:输入数据输入一个字符串: var = readline()读取数字: num = parse(Int64, readline())环形尽管while (true) print("Go to hell") end有条件的如果别的if (num % 2 == 0) println("even") else println("odd") end职能:传统方法: function sum(a,b) a + b end新方法: sum(a,b) = a + b功能对象的分配something = sum现在分配的对象将工作相同something(5, 10)功能类型用户自定义功能参数功能功能形式没有参数,没有返回
Matlab
0
2024-11-02
MATLAB Code for Cross Sectional Area Analysis from Time Series Data in Excel
This MATLAB code imports time-series data related to riverbank and water depth coordinates in XY format, sampled every 10 minutes. The code calculates the cross-sectional area for each water depth and writes the following data to an Excel file: Date/Time, Water Depth, and the cross-sectional area for each water depth.
Matlab
0
2024-11-06
Genetic Operators and MATLAB Code for Numerical Analysis
3.2 Genetic Operators
(1) Crossover Operator
The crossover operator randomly pairs individuals from the parent population for crossover operations, generating ( m ) offspring individuals to form the next generation. Two types of crossover are employed: single-point crossover and two-point crossover. Given two individuals for crossover ( P = {p_1, p_2, p_3, \dots, p_n} ) and ( Q = {q_1, q_2, q_3, \dots, q_n} ), a random crossover point ( b_1 ) is chosen from the range [1, n] for single-point crossover. The elements before ( b_1 ) in ( P ) are copied to offspring individual ( \text{new Individual1} ), while the remaining elements are copied from ( Q ). Similarly, a second offspring ( \text{new Individual2} ) is generated by swapping the roles of ( P ) and ( Q ). In two-point crossover, two random crossover points ( b_1 ) and ( b_2 ) are chosen, and the elements between ( b_1 ) and ( b_2 ) in ( P ) are copied to the offspring, with the remaining elements taken from ( Q ).
(2) Mutation Operator
After the crossover operation, two mutation operators are applied to the offspring individuals. The first is rotation mutation, where a random position ( \text{bit} ) is chosen, and with probability ( p_m1 ), the portion of the individual after ( \text{bit} ) is rotated. The second is position mutation, with a smaller probability ( p_m2 ), two integers ( \text{bit1} ) and ( \text{bit2} ) are randomly chosen from the range [1, n], and the corresponding parts of the individual are swapped.
(3) Selection Operator
The fitness of the mutated offspring individuals is evaluated using the lowest level line method. The parent and offspring individuals are ranked by their fitness in descending order, and the top ( m ) individuals are selected as the next generation's parents.
3.3 Termination Criteria
The steps in sections 3.2(1), 3.2(2), and 3.2(3) are repeated until the fitness of the best solution meets the required threshold or the pre-defined number of generations is reached. At this point, the optimal solution is output.
4. Case Study
To test the performance of the algorithm, two cases from literature [3] are solved. In Case 1, a large rectangle of size ( 15 \times 40 ) is divided into 25 smaller rectangles. Based on the lowest level line method, the corresponding coding sequence is ( \text{Opt} = {1, -9, 11, -15, 17, -24, -25, -10, -14, -22, -23, -2, -3, -5, 18, 7, -8, -12, 19, -20, 21, 6, 13, 4} ). The width is set at 40, and height considerations follow suit for the genetic algorithm implementation.
Matlab
0
2024-11-06
Hierarchical Analysis MATLAB Code-Cancer
该存储库包含我们题为“用于从整个幻灯片图像中提取格里森组织并分级前列腺癌的扩张式残留分层分割框架”的论文的实现。拟议框架的框图所提出的框架是使用TensorFlow 2.3.1和Keras API与Python 3.7.8开发的。此外,一些预处理步骤和结果汇编也通过MATLAB R2020a执行。下面显示了安装和运行代码的详细步骤:
安装
要运行代码库,需要以下库。虽然该框架是使用Anaconda开发的,但它应该与其他平台兼容。- TensorFlow 2.3.1- Keras 2.3.1- OpenCV 4.4.0- tqdm- Matplotlib
另外,我们还提供了一个yml文件,其中包含所有这些软件包。
数据集
请下载所需的数据集,并按照以下提到的层次结构来训练和测试建议的框架:
├── trainingDataset
│ ├── train_images
│ │ └── tr_image_1.png
│ │ └── tr_image_2.png
Matlab
0
2024-11-06
IEEG_Data_Analysis_with_Matlab_Code.zip
使用分散的数据点来插入头部图像的像素值。此函数使用GRIDDATA从头部图像上的散点插入像素值。参考图像可用于从10/20国际系统(脑电图电极位置)中交互式选择点位置。插值选项包括线性、三次和最近。输入是对应于每个选定位置的值。包括示例。
Matlab
0
2024-11-03
China-Administrative-Divisions-Excel-Import-SQL
根据2019年9月中华人民共和国县以上行政区划代码数据,件整理了全国各级行政区划代码,生成Excel文件,可直接导入到SQL Server数据库。原始数据来源于中华人民共和国民政部官方网站,确保数据的权威性与准确性。
SQLServer
0
2024-11-05
MATLAB Code for DEM Noise Analysis using 2D DFT
DFT的matlab源代码标题日期作者使用FFT测试DEM中的高频噪声2017年1月本·普林顿(purinton@uni-potsdam.de)代码迁移到PYTHON :) 注意:截至2020年5月,此分析已迁移到Python:如果要使用MATLAB TM,请继续下面的操作。使用2D DFT进行DEM噪声分析的Matlab代码。该MATLAB TM函数用于栅格化地形数据(DEM)的频谱分析,以分析高频,低波长噪声,如以下所示: Purinton,B.,and Bookhagen,B .:验证中部安第斯高原南部的数字高程模型(DEM)和地貌指标,《地球表面动力学》,2017年。)运行它在分析之前,用户必须下载并设置一些必需功能的路径: T. Perron的2DSpecTools软件包可用。有关此光谱分析程序的背景以及引起该分析的论文,请参见:Perron,JT,Kirchner,JW和Dietrich,WE:景观中特征空间尺度和非分形结构的光谱特征,地球物理研究杂志,113,2008年。 W.Schwangh
Matlab
0
2024-11-06
Mexican Hat MATLAB Code-Inverse Correlation Analysis for Directional Tuning Dynamics
墨西哥帽子MATLAB代码
逆时相关分析
实现理想的定向调谐动力学(Kovacic等,2008)
Matlab
0
2024-11-04
Impact_of_Big_Data_Disruption
在现代社会,大数据的冲击无处不在。其广泛的应用改变了各行各业的运作方式,从商业决策到社会行为分析,大数据带来了前所未有的变革。随着数据量的激增,如何有效管理和分析这些信息,成为了摆在各个行业面前的挑战。这一变化不仅影响了技术领域,也深刻影响了个人隐私和社会伦理的讨论。大数据的出现让我们开始思考未来技术的发展方向与数据安全的保护问题。
Oracle
0
2024-11-05