pass big matrices into function

Hello My question is very simple How can pass many big matrices into function. for example my function is:

f=[B(:);C(:);D(:);E(:);G(;)]

B, C, D, E and G are (1045*942) matrices. I can't write again them in function. I created these matrices before and I want to pass them into function only by name.

How can I do it?

Answer 1

[dpb]

function outputs=yourfunction(B,C,D,E,G)
  % do whatever to compute outputs with the input arrays

Matlab syntax doesn't care about size or even types of arguments; just refer to them as the variable names and all the rest takes care of itself.

See

doc function

for more details on writing functions in Matlab

[fatema saba]

Sorry I can't understand. for example my function is:

function[f]= ave2(B,C) f=[B(:);C(:)] end

and I created matrix B and C before. when I ran ave2 in MaTlab I got this error:

Input argument "B" is undefined.

[dpb]

Sorry, you're not providing anything near enough information to tell what went wrong. Show the complete code and the code you ran as you ran it, precisely.

If you have a function in an m-file that consists of

function[f]= ave2(B,C)
  f=[B(:);C(:)]
end

Then you call it just like any other Matlab function as (in the calling script or at the command line) --

x=rand(3);
y=rand(5);
z=ave2(x,y);

In this case you would get a returned vector z of length 34 (9+25). Inside the function B would be equated to x and C to y.

Answer 2

[Image Analyst]

You could have just tried. But don't worry about it - they're not very big. Even 5 of them is not very big at all.