Call different functions inside a function

HI there,

I am trying something I haven't done before, but I would like to learn how to do it, so I get a bit more experiences in it.

So, I have scripts that are very long, with few functions in it, and then I got other scripts that have functions that could help in different cases. So, I have decided that I want to create small functions that do small things, then create a main function that call those functions and import the data for the next function to work.

script1.m

function w=script1(a)

w=x

end

script2.m

function s=script2(w)

s=m

end

script3.m

function g=script3(w)

g=f

end

From those I would like to create a main function

mainscript.m

function mainscript()

script1

(gives back w)

script2

(gives back s)

script3.m

(gives back g)

end

any help will be appreciated!

Thank you,

Gonzalo

Answer 1

[Davide Masiello]

The way you have explained it in your question is already correct.

See the example below.

%% Main script
mainfunction

ans = 4

ans = 3

ans = 1.4142

%% Main function
function mainfunction()
myfun1(2)
myfun2(2)
myfun3(2)
end
%% Function 1 script
function out = myfun1(x)
out = x.^2;
end

%% Function 2 script
function out = myfun2(x)
out = x+1;
end

%% Function 3 script
function out = myfun3(x)
out = sqrt(x);
end

[Steven Lord]

If you want to use the output from myfun1, myfun2, myfun3 you need to call them with output arguments and pass those output arguments into the next function.

%% Main script
outputFromMainFunction = mainfunction

a = 4

banana = 5

c123 = 2.2361

outputFromMainFunction = 2.2361

%% Main function
function c123 = mainfunction()
a = myfun1(2)

Because I've omitted the semicolon at the end of these lines, MATLAB will print each output argument as it computes them. End the lines where you call myfun1, myfun2, and myfun3 with a semicolon if you want to suppress this display.

banana = myfun2(a)
c123 = myfun3(banana)
end
%% Function 1 script
function out = myfun1(x)
out = x.^2;
end

%% Function 2 script
function out = myfun2(x)
out = x+1;
end

%% Function 3 script
function out = myfun3(x)
out = sqrt(x);
end

Answer 2

[Gonzalo Guerrero]

Thank you guys!

I think i got the hang of it now! :D

cheers,

Gonz