Variable unrecognized in function

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.

Answer 1

[Cris LaPierre]

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.

[Tanveer Islam]

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]

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