STRCAT SYNTAX TO BE USED?

IF I WANT TO STRCAT 2 VALUES I WOULD DO STRCAT(S1,S2), SO WHAT IF I WANT TO DO N VALUES AND 'N' IS A VALUE WHICH GETS DEFINED IN BETWEEN THE PROGRAM?? WHAT IS THE SYNTAX I SHOULD USE?

THANK YOU

[Jan]

Please note that writing in uppercase means shouting in the forum. So please calm down and type your question as all otehr do with a proper case. Thanks.

Answer 1

[Azzi Abdelmalek]

N=3
str='abc'
out=repmat(str,1,N)

Answer 2

[Jan]

If you store a dynamical number of string, you do not use the names S1, S2, S..., but you store them in a cell string:

C = {'String 1', 'String 2', 'String 3'};  % and so on

Then instead of writing:

S = strcat(C{1}, C{2}, C{3})

You can write:

S = strcat(C{:});

This works with 200 million strings also, where names like S200000000 would be too ugly.

[ck]

thanks!, so if I want to strcat the elements on matrix from a(1,1) to a(n,1) into another matrix b(1,1) how is that done?

[Jan]

@Chetan: You have selected Azzi's answer as a solution, but it performs something completely different. Accepting an answer means, that it solves your problem.

You cannot assign a vector with many elements to a scalar variable b. Storing strings in a CHAR-matrix has severe disadvantages, e.g. you cannot distinguish the padded spaces with trailing spaces, which belong to the strings. A conversion to a cell string removes the padded spaces:

S = char('hi', 'matlab', 'user');
C = cellstr(S);
B = strcat(C{:})

If you want to keep the spaces you do not need strcat:

B = reshape(S.', 1, [])