Concatenate a matrix by rows problem

Hello. I have noticed a strange behavior when concatenating matrix rows. For example, I have those two matrices:

 H =

    2.0417    0.0208    0.0000
    0.0208    2.0200    0.0000
    0.0000    0.0000    2.0000

 F =

    0.1233    0.0801    0.0001
    0.4082    0.2002    0.0002

If I type HH = H(:)' I got

 HH =
    2.0417    0.0208    0.0000    0.0208    2.0200    0.0000    0.0000    0.0000    2.0000

which is correct, as I want to concatenate the matrix row in a long row. On the other hand, if I try FF = F(:)' I got

FF =

    0.1233    0.4082    0.0801    0.2002    0.0001    0.0002

which is not correct as the columns are concatenated in a long row.

Is there a way to get always the same result (in my case row concatenation in a long row)?

Answer 1

[KSSV]

If A is any matrix, when you type A(:), it always concatenates column wise irrespective of it's dimensions. If you want to change it's behavior like you mentioned in my case row concatenation in a long row; you have to transpose the matrix and then use :.

F = [0.1233    0.0801    0.0001
    0.4082    0.2002    0.0002] ;
F = F' ;
FF = F(:) ;

You put a if condition and proceed with transpose.

if size(F,1) < size(F,2)
    F = F' ;
    FF = F(:) ;
end