How can I make a variable equal a script in Matlab

I want to make this script:

c = 4500:30:7500;
 
first = 0:150;
second = 150:250;
third = 250:325;
 
x = 0.2*first;
y = c./second;
z = -(0.4)*third+130;
 
plot(first, x, second, y, third, z)

Be the variable for v in this script:

clc
clear
close all
 
v = (velocity_array);
 
s = sumAreaP4(v);
 
disp (x)

sumAreaP4:
function [s]=sumAreaP4(v)
 
    j=length(v);
    
    t=0.1;
    
    A=0.5*t*v(1);
    
    s=A;
    
    for i=2:j
        
        A(i)=0.5*t*(v(i-1)+v(i));
        
        s(i)=s(i-1)+A(i);
    end  
end

Thank you

[Wan Ji]

What do you mean by saying so

[ARAH MIZORI]

I want to make the array in the first script a variable for v in the second script to run in the function

[DGM]

Which array? It's a script with multiple variables. You're essentially asking how to make a function, but you haven't described what the function is even supposed to return.

[Sahil Jain]

As the other users commented, please provide more details as to which array from the first script you would like to use in the second script.