Check if variable exists in workspace to plot... Learn more about gui, error, check variable, exist, workspace, errordlg, if statement MATLAB
%disp(testresults); %can't work because variable testresults does not %exist. testresults = magic(5) %create variable 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 ...
MATLAB Online에서 열기 Dear all, Simple question about checking if a variable exists. I want my function to check if a given parameter exists in the workspace before attempting to modify it. If it doesn't exist, my function should behave differently. ...
If name matches both a variable and a P-code file, exists returns 1, identifying it as a variable. If name matches both a folder and a MATLAB function, exist returns 7, identifying it as a folder. example exist name searchType returns the type of name, restricting results to the ...
0—namedoes not exist or cannot be found for other reasons. For example, ifnameexists in a restricted folder to which MATLAB does not have access,existreturns 0. 1—nameis a variable in the workspace. 2—nameis a file with extension.m,.mlx, or.mlapp, ornameis the name of a file ...
When you have a specific need to check if a variable is of character type in MATLAB, theischar()functionis a reliable choice. This function returns a logical value, indicating whether the variable is a character array or not. Theischar()function in MATLAB follows a straightforward syntax: ...
https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval. It's generally a bad idea, but I don't see a good alternative without knowing the context that you plan to use this in.
() Dim numberSheetID As Integer = 1 Dim strSheetName As String = Nothing Dim SheetCount As Integer = 0 If Not System.IO.File.Exists(filepath) Then MsgBox("This file is not exist") End If Try Dim obj As Microsoft.Office.Interop.Excel.Application = Nothing Dim objWB As Microsoft....
() Dim numberSheetID As Integer = 1 Dim strSheetName As String = Nothing Dim SheetCount As Integer = 0 If Not System.IO.File.Exists(filepath) Then MsgBox("This file is not exist") End If Try Dim obj As Microsoft.Office.Interop.Excel.Application = Nothing Dim objWB As Microsoft....
Open in MATLAB Online ThemeCopy %load the data from mayoralpayroll.mat payInfo = importdata('mayoralpayroll.mat'); %determine median Median_of_whole = median('payInfo(:,4)'); %split the set [row,col] = find('payInfo(:,4)', Median_of_whole)...