Error: Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

Question

Juan José Jiménez 2020-10-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/611796-error-invalid-expression-check-for-missing-multiplication-operator-missing-or-unbalanced-delimite

评论： Juan José Jiménez 2020-10-12

     function PruebasdisponiblesButtonGroupSelectionChanged(app, event)
            switch app.PruebasdisponiblesButtonGroup.SelectedObject.Text
                case 'PBU'
                    if app.FuncinDropDownLabel == "Pwf"
                        app.UIAxes.YLabel.String = 'Pwf';
                        app.UIAxes2.YLabel.String = 'Pwf';
                        app.UIAxes3.YLabel.String = 'Pwf';
                    elseif app.FuncinDropDownLabel == "m(p)"
                        app.UIAxes.YLabel.String = 'm(p)';
                        app.UIAxes2.YLabel.String = 'm(p)';
                        app.UIAxes3.YLabel.String = 'm(p)';
                    elseif app.FuncinDropDownLabel == "P^2"
                        app.UIAxes.YLabel.String = 'P^2';
                        app.UIAxes2.YLabel.String = 'P^2';
                        app.UIAxes3.YLabel.String = 'P^2';
                    end
                case 'PDD'
                    if app.FuncinDropDownLabel == "Pwf"
                        app.UIAxes.YLabel.String = 'Pwf';
                        app.UIAxes2.YLabel.String = 'Pwf';
                        app.UIAxes3.YLabel.String = 'Pwf';
                    elseif app.FuncinDropDownLabel == "m(p)"
                        app.UIAxes.YLabel.String = 'm(p)';
                        app.UIAxes2.YLabel.String = 'm(p)';
                        app.UIAxes3.YLabel.String = 'm(p)';
                    elseif app.FuncinDropDownLabel == "P^2"
                        app.UIAxes.YLabel.String = 'P^2';
                        app.UIAxes2.YLabel.String = 'P^2';
                        app.UIAxes3.YLabel.String = 'P^2';
                    end
            end        
        
            end
        end
    end
    % Component initialization
    methods (Access = private)

[SL: formatted code as code]

3 个评论
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Juan José Jiménez 2020-10-12

It occurs on the last line, the one that says methods (Acces = private)

Juan José Jiménez 2020-10-12

Parse error at methods: usage might be invalid MATLAB syntax

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Answer 1

Steven Lord 2020-10-12

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/611796-error-invalid-expression-check-for-missing-multiplication-operator-missing-or-unbalanced-delimite#answer_511921

Smart indent your code in the MATLAB Editor. When I did that for your code sample, there were two end statements after the one that matched the function keyword. Assuming that this is a method in a classdef file the first of those end statements would end the methods block in which that method was defined and the second would end the classdef block. This means the new methods block that you're trying to start falls outside the class definition.

Eliminate the last of those end statements or move it to the end of the class definition.