Fill an array with different size vectors
46 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
I have different sized vectors and an array to fill
A=[1,2,3,4];
B=[5,6];
C=[7,8,9];
ARRAY=zeros(5);
And I want to reach this:
OBJECTIVE =
1 2 3 4 0
5 6 0 0 0
7 8 9 0 0
0 0 0 0 0
0 0 0 0 0
Any idea? Also if there is any way to extend vectors to certain length I highly appreciate to know.
0 Commenti
Risposta accettata
Stephen23
il 5 Set 2019
Modificato: Stephen23
il 5 Set 2019
For an arbitrary number of vectors use a cell array, then looping is trivial:
>> D = {[1,2,3,4],[5,6],[7,8,9]};
>> M = zeros(5,5);
>> for k = 1:numel(D), M(k,1:numel(D{k})) = D{k}; end
>> M
M =
1 2 3 4 0
5 6 0 0 0
7 8 9 0 0
0 0 0 0 0
0 0 0 0 0
0 Commenti
Più risposte (3)
the cyclist
il 5 Set 2019
Here is one straightforward way:
A=[1,2,3,4];
B=[5,6];
C=[7,8,9];
ARRAY=zeros(5);
ARRAY(1,1:numel(A)) = A;
ARRAY(2,1:numel(B)) = B;
ARRAY(3,1:numel(C)) = C;
Jos (10584)
il 5 Set 2019
A=[1,2,3,4];
B=[5,6];
C=[7,8,9];
[ARRAY, tf] = padcat(A,B,C) % pad with NaNs
ARRAY(~tf) = 0 % replace those NaNs with zeros
PADCAT concatenates vectors of unequal lengths by padding them with NaNs. It is available for free on the File Exchange
0 Commenti
Vedere anche
Categorie
Scopri di più su Creating and Concatenating Matrices in Help Center e File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!