"the scope of variable spans multiple functions matlab"

2019 3 16
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更新时间：2019 3 17
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Can somebody tell me what is this message in "blue" variable "the scope of variable spans multiple functions matlab" ??
is it a nested function??
i have this code in attached image

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Stephen23
Stephen23 2019-3-17
编辑：Stephen23 2019-3-17
Those variables are used in nested functions. Nested functions are an intuitive and convenient way to simplify passing data between workspaces. Note that powutil4's alignment is misleading: the default MATLAB code alignment indents nested functions, which makes it clear which functions in a file are nested and which are local:
https://www.mathworks.com/help/matlab/matlab_prog/types-of-functions.html

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Stephan
Stephan 2019-3-16

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Hi,
yes, it is due to the nested functions. It is one possible way to avoid global variables. There is nothing wrong with it. The documentation suggests this as a proper way instead of the usage of global variables. So no worry.
Best regards
Stephan

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Panos Raptis
Panos Raptis 2019-3-16
Thanks a lot for quick answer
Ok these code its not mine and i want to adapt it on my data, these variables (blue) in pic which i attach it is returns from excel matrix....maybe you know how to span a variable with data from excel matrix?
Stephan
Stephan 2019-3-16
there a several ways. one idea could be xlsread or readtable.
Panos Raptis
Panos Raptis 2019-3-16
okay and how i will define nested and parent funtions?
Stephan
Stephan 2019-3-16
Did you notice that you can accept and/or vote for useful answers? Feel free to do so on useful contributions.

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