how to concatenate vectors

Dears,

T is a vector concatenated from T{J} (J=0:4000) which T{1}, T{2}, ... are not same size. How can I concatenate T as a vector?

Regards

[Geoff Hayes]

Sam - what are the T{k}? Are they scalars, vectors, matrices, strings or ..??

[Sam sanati]

Sorry, I forgot to mention. they are vectors.

Answer 1

[Jos (10584)]

If all elements of T are row or column vectors, you can use VERTCAT or HORZCAT, using comma-separated list expansion:

T1 = {[1;2;3],[4],[5;6;7]}  % all column vectors
V1 = vertcat(T1{:})         % single column
T2 = {[1 2 3],[4],[5 6 7]}  % all row vectors
V2 = horzcat(T2{:})         % single row

For mixed types it will not work directly and you'll have to reshape them first

T3 = {[1;2;3],[4 5],[6 7]}    % mixed type
T3c = cellfun(@(x) reshape(x,[],1), T3,'un',0) ; % convert to column vectors first
V3 = vertcat(T3c{:})

[Sam sanati]

Thanks for complete answer.

Answer 2

[Jan]

When the size of the elements of T are not matching, you can use: FEX: Cell2Vec