if isempty(a) disp('a is empty') else disp('a is not empty') end 在这个例子中,变量a被赋值为空矩阵。使用isempty函数检查a是否为空,如果a为空,则输出'a is empty',反之输出'a is not empty'。 除了使用if语句和isempty函数外,还有其他的非空判断方法,比如使用exist函数。exist函数可以用来检测一...
在MATLAB中,empty是一个函数,用于检查数组是否为空。如果数组是空的,则empty函数返回逻辑值true,否则返回false。 基本用法 假设你有一个变量A,你可以使用empty(A)来检查A是否为空。 matlab A = []; if empty(A) disp('A is empty.') else disp('A is not empty.') end 在这个例子中,因为A是一个空...
ifisempty(P0) P0 = 0; V0 = 0; n = 1; D0 = Dinit; end P = V*I; dP = P - P0; dV = V - V0; if(T>0.02*n) n=n+1; if(dP*dV > 0) D = D0 - delD; elseif(dP*dV < 0) D = D0 + delD; end else
Setting this to false/'off'/0 is equivalent to using -X.Troubleshoot Missing Dependencies If the dependency analyzer is unable to find one or more dependencies, MATLAB Compiler populates the unresolvedSymbols.txt file with a list of the missing items. If this file is not empty, you must ...
% specified by the string FILENAME. If the file is not in the current % directory, or in a directory on the MATLAB path, specify the full % pathname. % % The text string FMT specifies the format of the file by its standard
1. 使用 isempty 函数可以判断一个矩阵是否为空。例如: ``` A=[]; result = isempty(A); % 返回 1,表示 A 是空矩阵 ``` 2. 使用 numel 函数可以获得一个矩阵的元素个数,然后与 0 比较,来判断矩阵是否为空。例如: ``` A=[]; if numel(A) == 0 disp('A 是空矩阵'); end ``` 总结:...
elseif isempty(setOpen) axis off; disp('No Solution!'); [y,Fs] = audioread('pewee-ahh.wav'); sound(y,Fs); end % end of the main function %%%%%%%%%%%%%%%%%%%%%%%%%%%% function p = findWayBack(goalposind,fieldpointers) ...
% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. ifispc set(hObject,'BackgroundColor','white'); else set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor')...
Avoid negative sign with compose() when output is zero, e.g. '-0' or '-0.0' Leonon 20 Feb 2025 When compose outputs zero, it includes a negative sign if the number was negative, giving, e.g. -0 or -0.0. How can I avoid this? (Other than writing another function that does a...
if ~exist('opt_colmajor', 'var') || isempty(opt_colmajor) opt_colmajor = false; end % rescale A = A - mean(A(:)); if opt_graycolor, colormap(gray); end % compute rows, cols [L M]=size(A); sz=sqrt(L); buf=1; ...