How do you share a variable from another function to be used in a different function?

Question

Cordelle 2013-6-4

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/77901-how-do-you-share-a-variable-from-another-function-to-be-used-in-a-different-function

function Browse1_Callback(~, ~, handles)
% hObject    handle to Browse1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[FileName,FilePath ]= uigetfile();
ExPath1 = fullfile(FilePath, FileName);
set(handles.Filename1,'string',ExPath1)

(I would like to use the ExPath1 variable and value from my Browse1 function in my calculate1 function)

function Calculate1_Callback(~, ~, ~)
% hObject    handle to Calculate1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
%[x, error, stat1, stat2, stat3] = correctionModelworking1('landsat5.xls', 'true', 2,'true');
   [x, error, stat1, stat2, stat3] = correctionModelworking1(ExPath1,'true',2,'true');

(Right now the code doesnt work but i needed help fixing it)

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Walter Roberson 2013-6-4

Duplicates http://www.mathworks.co.uk/matlabcentral/answers/77867-is-it-possible-to-declare-and-function-within-another-function-if-not-look-at-the-code-below

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Answer 1

Craig Cowled 2013-6-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/77901-how-do-you-share-a-variable-from-another-function-to-be-used-in-a-different-function#answer_87609

Cordelle, I'm not going to re-write your code for you, but I will suggest that you read up on nested functions,

here ... http://www.mathworks.com.au/help/matlab/examples/nested-functions.html

and here ... http://www.mathworks.com.au/help/matlab/matlab_prog/nested-functions.html

From what I can see in your code, you are missing two 'end' statements. Doing this will ensure that your second function is nested within the first function. All the variables declared in the first function will be available to the second function, much like global variables.

Have fun, Craig.