Many MATLAB functions that start withisreturn logical arrays and are very useful for logical indexing. For example, you could replace all the NaN elements in an array with another value by using a combination ofisnan, logical indexing, and scalar expansion with one line of code. B(isnan(B)...
You can initialize an array with an optionalinitializerinput argument that contains numbers. Theinitializerargument, which is the first positional argument, must be a Python sequence type such as alist,tuple, orrange. You can specifyinitializerto contain multiple sequences of numbers. ...
% Calculate correlation matrix of A. CM=corrcoef(SA); % Calculate eigenvectors and eigenvalues of correlation matrix. [V, D]=eig(CM); % Get the eigenvalue sequence according to descending and the corrosponding % attribution rates and accumulation rates. for j=1:b DS(j,1)=D(b+1-j, b...
为方便进行程序设计,Matlab任然支持显示的函数重载,参考Matlab R2014a帮助文档“Types of Functions”、Matlab R2012a帮助文档“Matlab/Getting Started/Programming/Scripts and Functions/Types of Functions”。 4.矩阵及矩阵化编程 矩阵的创建(参考Matlab R2014a帮助文档“Array Creation and Concatenation”、《MATLAB ...
%生成任意概率分布密度的随机数functionvarargout=RandAnyDist(PDF,Size,Range)%生成单位球面上均匀分布的随机点function[X,Y,Z]=RandOnSphere(varargin)%洗牌算法,支持设定最大连续重复数function[Array,CountCache]=Shuffle(Array,options) %示例脚本Demo%安装下载好的支持包functionInstallSupportPackages(ArchivesDirectory...
Many of the functions that you might make use of when programming MATLAB are implemented in MATLAB syntax themselves – by professional MathWorks programmers. To look at such the contents of themean()function (which calculates the average mean value of an array), typeedit meanon the MATLAB comm...
Multiple lines of text Cell array of character vectors or string array. txt = {'First line','Second line'};or txt = ["First line", "Second line"]; Text that includes a numeric variable Array that includes the number converted to a char array. Use num2str to convert the value. x =...
% Format files. To see a list of supported formats, with their file % extensions, use the IMFORMATS function. If IMREAD cannot find a file % named FILENAME, it looks for a file named FILENAME.FMT. % % The return value A is an array containing the image data. If the file ...
cell2struct Convert cell array to structure array(将单元格数组转换为结构数组) fieldnames Field names of structure,or public fields of object(结构的字段名,或对象的公共字段) getfield Field of structure array(结构数组的字段) isfield Determine whether input is structure array field(确定输入是否为结构数...
(hObject, eventdata, handles)% varargout cell array for returning output args (see VARARGOUT);% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Get default command line output from handles...