% Check if file exists. if ~exist(fullFileName, 'file') % File doesn't exist -- didn't find it there. Check the search path for it. fullFileNameOnSearchPath = baseFileName; % No path this time. if ~exist(fullFileNameOnSearchPath, 'file') % Still didn't find it. Alert user. ...
exist用来判断变量或函数是否存在：exist Check if variables or functions are defined. exist('A') returns: 0 if A does not exist 1 if A is a variable in the workspace 2 if A is an M-file on MATLAB's search path. It also returns 2 when A is the full p...
Check if file directory exists, else create it. Learn more about directory, mkdir, file, folder MATLAB
MATLAB操作界面菜单提供了“File”、“Edit”、“View”、“Web”、“Window”和“Help”菜单。 1.File菜单 表1.1File菜单功能表 下拉菜单功能 NewM-file新建一个M文件,打开M文件编辑/调试器 Figure新建一个图形窗口 Model新建一个仿真模型 GUI新建一个图形用户设计界面(GUI) Open...打开已有文件 Close Command H...
EXIST Check if variables or functions are defined.EXIST('A') returns:0 if A does not exist 1 if A is a variable in the workspace 2 if A is an M-file on MATLAB's search path. It also returns 2 when A is the full pathname to a file or when A is the name of ...
path文件夹中是否存在图片文件0001.png、0001.jpg、0001.bmp，如果存在某种类型的文件，则按照同类型产生0002.*、0003.*等序列文件名（一直到seq.len）。如果没找到上述三种类型的图片文件，则报错。需要注意的是，img_path中如果包含多层目录，则分隔符应使用“\\”或“/”，而不能使用“\”。
fileNameRoot = "frame"; % Check if data files exist dataFilesExist = false; if exist(dataDirectory,'dir') files = dir(fullfile(dataDirectory,sprintf("%s*",fileNameRoot))); if length(files) == numModulationTypes*numFramesPerModType dataFilesExist = true; end end if ~dataFilesExist disp...
if ~exist(file,'file') continue;%并设置数据为0 end temp=importdata(file); % if i==1&&j==1 f=temp(1:401,1); % end temp=temp.a4+1i*temp.a5; c{i,j}=temp; % display (file) %测试用 end end HAcaca=cell2mat(c); 从文件夹中批量读取文件 ...
“does not exist”，意思是这个文件不存在。检查一下你的matlab的当前文件夹路径。就是这个地方。有两种解决办法，第一就是把matlab的当前文件夹路径改一下，第二就是使用绝对路径。比如说，你的这个文件的路径是"D:\字符模板\1.jpg"，那么你有两种改法：第一种就是把matlab当前文件夹路径改成"D:...
Check If MATLAB Function Is Built-In Function Check whether theplotfunction is a built-in function or a file. A = exist('plot') A = 5 This indicates thatplotis a built-in MATLAB function. Input Arguments collapse all name—Name of variable, script, function, folder, or class ...