Concatenating 2 arrays without changing the dimension

I want to concatenate 2 arrays of same dimension. And I want to add a blank space in between. When I use ' ', the dimension changes to nx2 while I want that the dimension should remain as nx1. Is there any way out to do this? Any help is welcome !!!!

E.g.: 2 arrays are of dimension n x 1. I want to concatenate them with a blank space. And, after that also I want that the dimension should be n x 1 and not n x 2.

Thanks again !!!!

[Jan]

Please give a real example. Are you talking about cell strings?

[Swasti Khuntia]

I'm working on two arrays which include the date and time. So, I wanted to concatenate the two arrays into a single column. Hope that makes clear to you.

Thanks again !!!

[Jan]

Please, Swasti, give an explicite example. E.g.

Input:

C1 = {'26-Jun-2993'; '23-Dec-1998'}

C2 = {'17:23:45', '18:10:17'}

Output:

C3 = {'26-Jun-2993 17:23:45'; '23-Dec-1998 18:10:17'}

???

There are several possible types of "an array containing date and time".

[Swasti Khuntia]

The example is perfect for my case.

Answer 1

[Jan]

Perhaps you are looking for:

strcat(C1, {' '}, C2)

[Swasti Khuntia]

I tried this but got the error message as

Error using horzcat

CAT arguments dimensions are not consistent.

[Swasti Khuntia]

Hello Jan,

When I try to concatenate them vertically, it works. But when I concatenate them horizontally, it's creating 2 columns. I don't know why !!!! Is there any data overflow or something like that?

[Walter Roberson]

strcat(C1(:), {' '}, C2(:))

[Swasti Khuntia]

Thanks a lot Jan !!!!!

Answer 2

[Wayne King]

 x = randn(10,1);
 y = randn(10,1);
 z  = [x ;y];

or

z = cat(1,x,y);

[Swasti Khuntia]

Thanks Wayne for the answer. But I've elaborated my question, please have a look. I want to concatenate the arrays horizontally.

[Wayne King]

I'm not sure I understand. How can you concatenate two arrays of dimension Nx1 into a single column and have the resulting dimension still Nx1? The dimension has to be 2*Nx1 if you don't want them to be Nx2

[Swasti Khuntia]

Sorry for the mistake. Yes, it's 2*Nx1 !!! Thanks a lot !!!

[Wayne King]

Then why is my answer not correct? What do you mean concatenate horizontally? Do you mean a row vector? Then just transpose the result.

[Swasti Khuntia]

In my case, I have a Nx1 date vector and Nx1 time vector. I want to concatenate the two vectors so that the date and time vector is represented in a single vector (i.e., side by side with a blank space). When I try to use ' ' (blank space), the string concatenates no doubt but there are two columns. I hope you get my query.