How do I call a script inside a function?

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Wojciech Kalinowski
评论： Ameer Hamza 2020-4-1
So, I have three scrips two of them, initial_data1 and initial_data2, contain data and process it into arrays. Then I want the third scrip to run a function that uses the data from the files. I'm using matlab R2019a.
% initial_data2
dt = 0.01;
t = 0:dt:1000;
r = zeros(size(t)); %ect
The function I have works like this:
function [H,V,H_t,V_t] = Lunch_equations(data)
data;
% code
% also the output variabels are arrays if that is important.
end
And I'm trying to input the initial data files into the fuction so that the function has the local scope of one of these scrips at a time.
% The third scrip
clear
clc
[hight1,velocity1,hight_t1,velocity_t1] = Lunch_equations(initial_data1);
[hight2,velocity2,hight_t2,velocity_t2] = Lunch_equations(initial_data2);
%code
From here 'm getting an error: "Attempt to execute SCRIPT initial_data2 as a function" (or initial_data1).
Is there anyway to run the scrips inside the function as a local scope?
Thank you in advance.

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-4-1
编辑：Ameer Hamza 2020-4-1
script name 'initial_data1' does not return a value. Running
initial_data1
will just run the code inside the script, and the variable will be created in the current scope. For example, if this script generate variables dt, t, and r the after running this line, you will be able to use those variables
initial_data1
% do something with dt, t, and r
Therefore, in your case, you can do somthing like this
initial_data1;
[hight1,velocity1,hight_t1,velocity_t1] = Lunch_equations(dt, t, r);
However, note that spawning the variables like this in a workspace can make the code very difficult to debug. An optimal code will just have one script for testing, the rest of the code should be organized in the form of functions.
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Wojciech Kalinowski
Wojciech Kalinowski 2020-4-1
Thanks, this worked.
I'm going to look into the structures they probabaly will be helpfule later on.

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更多回答（1 个）

David Hill
David Hill 2020-4-1
Why not just use functions? I only use scripts when I am working in the workspace. Unless you are going to call a function more than once, you should just place the code in the original function (my opinion).
  1 个评论
Wojciech Kalinowski
Wojciech Kalinowski 2020-4-1
The code is going to be used a couple times and the initial data values have about 40 varibles in them that change between initial_data1 and initial_data2.
Like I mention in the above coment I could make it into three scripts and run it like this.
initial_data1;
% code from function with the outputs hight1, velocity1, hight_t1, velocity_t1
initial_data2;
% code from function with the outputs hight2, velocity2, hight_t2, velocity_t2
But, that would create couple hundred lines of code where a lot would be repeaded.

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