Check if variable exists in workspace to plot... Learn more about gui, error, check variable, exist, workspace, errordlg, if statement MATLAB
exist testresults; %returns "1", variable exists if (exist testresults var) %why can't I check if this exists? %File: temp.m Line: 6 Column: 11 %Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To c...
for i = 1:size(sorteddata(:, 2:end), 1) % Loop through each cell in the cell array for j = 1:length(All_cluster) % Check if the current row of sorteddata matches with any row in the current cell if all(ismember(All_cluster{j}(:,[1,...
(s) that exist, but a different operation on each existing file. I.e. I might have cell1 and cell2 or I might just have cell1 or just cell2. There will be a set of operations to perform if cell1 exists and a different set of operations to ...
If the variable al y exists, changes its contents and, if necessary, allocates new storage. For example, num_ s = 25 creates a 1-by-1 matrix named num_ s and stores the value 25 in its single element. Variable names consist of a letter, followed by any number of letters, digits,...
52、rpose%Todemonstrateopeninganoutputfileproperly.%Thisprogramchecksfortheexistenceofanoutput%fileIfitexists,theprogramcheckstoseeif%theoldfileshouldbedeleted,oriftlienewdata%shouldbeappendedtotheoldfile%Recordofrevisions:%DateProgrammerDescriptionofchange一%11/29/98S.J.ChapmanOnginalcode%Definevariable 53...
{lstlisting} 保留字是被编程语言内部定义并保留使用的标识符号 Python语言有33个保留字 and,elif,import,raise,global as,else,in,return,nonlocal assert,except,is,try,True break,finally,lambda,while,False class,for,not,with,None continue,from,or,yield def,if,pass,del \end{lstlisting} \noindent ...
(1 point)Theory: A matrix A is said to be orthogonally diagonalizable if there exists an orthogonalmatrix P ( 1 T P P = ) and a diagonal matrix D, such that, 1 A PDP = , or equivalently,T A PDP = .Theorem: An n n matrix A is orthogonally diagonalizable if and only if A is...
When objconstr returns a structure, fval is the value objconstr(x).Fval, the objective function value at x (if this value exists). exitflag— Reason surrogateopt stopped integer Reason surrogateopt stopped, returned as one of the integer values described in this table. Exit FlagDescription 10...
% 5/6/13 Fixed a problem with a poorly subscripted variable. (Under certain % conditions, data were being improperly written to the 'records' variable. % Thanks to Hisham El Moaqet for reporting the problem and for sharing a % file that helped me track it down.) ...