function without matching end

Question

Ricky 2013-7-4

3
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https://ww2.mathworks.cn/matlabcentral/answers/81085-function-without-matching-end

hello everyone,

I have got a m file which reads in data and plots the data in a GUI. In the main file itself there are many functions written. My understanding was that each function needs an end statement. In the code that I have functions are without end statement. What could be the reason for this . I am copying part of code for reference.

      function panel_sp_1_CreateFcn(hObject, eventdata, handles)
      set(hObject, 'UserData', 0);

The above function is from my code. The function does not have an end statement.

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Answer 1

Jan 2013-7-4

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The trailing "end" is a new feature in Matlab, which is required for nested functions. The old style without a trailing "end" will be kept for backward compatibility without any drawbacks. But when the programmer decides to use the new nested functions or the new style for one of the functions stored in an M-file, all functions must be closed by an "end" to keep the integrity.

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Answer 2

Matt J 2013-7-4

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编辑：Matt J 2013-7-4

No, sub-functions do not necessarily have to have end statements. However, once you close one sub-function with an end statement, you must do so for all functions within that mfile.

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Matt J 2013-7-4

编辑：Matt J 2013-7-4

Also, nested functions must be closed with "end" and if a nested function is used anywhere inside your mfile, all sub-functions will then require an "end" statement.

Functions in classdef files must also be enclosed in end statements.

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