Extracting a vector from a 3d array

Hi, I have a 3d array called 'A' of size (l,m,n)=12x15x3648.

I want to extract all 3648 values for a given index (l,m) as a single column vector. Doing A(7,8,:) for example outputs many individual answers and is not useful. I would like them in a vector which is 3648 elements long.

Any help is appreciated. Thanks.

Answer 1

[the cyclist]

Two alternatives:

squeeze(A(7,8,:))

and

permute(A(7,8,:),[3 1 2])

[Graham]

Thank you!

[Gianmarco Venditti]

Why doing something like:

X = A(:,7,8) you have vector ( a one index object)

while

X = A(7,8,:) produce a 4-D tensor? (Still have 4 index)

[the cyclist]

Can you upload an example of an array A where you see that happening? You can attach a MAT file using the paper clip icon in the INSERT section of the toolbar.

Answer 2

[ABHIJITH U V]

Hello

I would like to extract all the values 468 from a 3 d - array of size (2,2,468) into a vector. How to do this ??

Answer 3

[Giorgio Sperandio]

Very interesting,

Would it be possible to loop the squeeze function in order to obtain the 3648 values from all the l,m indexes?

Thanks