How can I expand a array with with even zero intervals in between?
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
Suppose I have an array a=[1 2 3], how can i generate a code that would add x-amout of zeros in between each value of the original array?
For example
a=[1 2 3] ----> function or loop (code) -----> a1=[1 0 0 2 0 0 3]
0 Commenti
Risposta accettata
Bruno Luong
il 15 Ago 2019
Modificato: Bruno Luong
il 15 Ago 2019
nz = 2;
b = a;
b(end+nz,:) = 0;
b = b(1:end-nz)
2 Commenti
Bruno Luong
il 15 Ago 2019
Modificato: Bruno Luong
il 15 Ago 2019
To understand you must aware that MATLAB store array column-wise, meaning
A = [1 3 5;
2 4 6];
is stored in contiguous internally 1, 2, 3, 4, 5 6, and when you RESHAPE A by
A(1:4), you'll get a row vector [1 2 3 4].
Now with that in mind, this first statement add nnz rows of zeros in B, so after reshaping you'll get NNZ zeros in between elements of the first row.
The last statement also removes the last NNZ zeros after the last element of a.
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Sparse 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!