How I can append matrices of different dimensions in another matrix?

I want to make a empty matrix in which i want to append matrix of dimensions 3*1,4*1, 3*1,2*1 etc.

It is better if I am able to append through for loop because I have 8-10 matrix of dimensions 3*1,4*1, 3*1,2*1).

Please suggest by showing or refering example.

Thanks

[David Fletcher]

Fundamentally, I suspect what you want to do isn't possible (at least not with a matrix) - you will need to use a cell array see here:

Cell Arrays

[SANDEEP SINGH RANA]

Okay, thanks

Answer 1

[Stephan]

A = randi(10, 3, 1)

A = 3×1

2 1 6

B = rand(4, 1)

B = 4×1

0.2924 0.8584 0.9733 0.8157

C = randi(10,5,1)

C = 5×1

2 3 4 3 2

D = vertcat(A,B,C)

D = 12×1

2.0000 1.0000 6.0000 0.2924 0.8584 0.9733 0.8157 2.0000 3.0000 4.0000

[SANDEEP SINGH RANA]

Hi stephan,

Thanks for the help. Can you also tell me how to concatenate these using horzcat. The reason for using horzcat is that when i will call this value (say D), it difficult to specifyor distinguish value of A, B and C matrix. While using horzcat, it showing error. Please help me to overcome this issue.

D = horzcat(A,B,C);

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

[Stephan]

I dont recommend to do so, because you have to transpose them additionally, which doesnt make much sense. If you need a row vector you could also transpose the result of my code instead of transposing all the elements and then use horzcat:

A = randi(10, 3, 1);
B = rand(4, 1);
C = randi(10,5,1);
D = (vertcat(A,B,C)).'

D = 1×12

5.0000 5.0000 7.0000 0.1645 0.1534 0.2924 0.6751 10.0000 2.0000 2.0000 6.0000 6.0000

Maybe you might want to use a cell array:

D = {A, B, C}

D = 1×3 cell array
    {3×1 double}    {4×1 double}    {5×1 double}

There are a many ways to do what you want.