Variable unrecognized in function

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Tanveer Islam 2022-2-21

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评论： Cris LaPierre 2022-2-21

so i wrote this code and it seems to work fine on its own but everytime I try to run it as a function it keeps showing variable unrecognized. The variable is column vector imported from excel.

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Answer 1

Cris LaPierre 2022-2-21

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It would appear, based on the error message, that your function does not create a varibale Nu. Make sure you are either passing the variable into your function, or that you create it inside the function.

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Tanveer Islam 2022-2-21

Thank you. So it worked after I copied and pasted the vectors from the workspace. So, is there any other efficient way of using large excel sheets of data inside a function. Because I used the import data and that didnt work for the functions or is there something I likely did wrong?

Cris LaPierre 2022-2-21

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You could import them inside your function, but the more typical way to get data into a function is to pass it in as one of the inputs. See here.

Here's a simple example, but what is passed in could be anything you can capture in a variable.

% scripting
a = 5;
b = a.^2
b = 25
% same calculation, but now performed in a function.
c = myfunc(a)
c = 25
function out = myfunc(in)
out = in.^2;
end