use of horzcat

Question

Richard 2012-6-19

What is the use of horzcat? Is there an advantage of using horzcat over manually concatenating arrays horizontally? for example:

A = {'a','b','c'};
B = {'d','e'};
C = horzcat(A,B);

This is the same as:

A = {'a','b','c'};
B = {'d','e'};
C = [A,B];

So, is there an advatage of using horzcat?

Answer 1

Jan 2012-6-20

When you type [A, B] in the code, horzcat is called internally, as it is when it is called explicitely also. [.,.] is a synonym only.

cat(2, A, B) replies the same result, but as far as I remember it has a tiny difference in the runtime.

rudolf 2012-7-10

Hello Jan

If i have several txt files on a folder instead of specify A, B, C,... how can i read all files inside a folder Im trying to use:

C=cat(1, F{:}) but is not working

Thanks rf