How to define array without size and append values
36 visualizzazioni (ultimi 30 giorni)
Mostra commenti meno recenti
in C++, by using the vector API
we can create empty array and append values.
//for C++
vector<float> v;
v.push_back(2.3);
v.push_back(3.1);
v.push_back(4.5);
then we got
v[0]=2.3
v[1]=3.1
v[2]=4.5
How to implement that in Mathlab?
I have read the tutorial but it said the limited dimension is required when I want to create empty array
like
Array = int16.empty(5,0)
0 Commenti
Risposta accettata
Walter Roberson
il 14 Apr 2020
Array = [];
Array(end+1,1) = 2.3;
Array(end+1,1) = 3.1;
Array(end+1,1) = 4.5;
Caution: this is not as efficient as if you can pre-allocate. Every time you add on to the end, MATLAB has to create a new internal version of the array with one more slot in it, and copy the values from the old array to the new array and put on the new value. MATLAB is weak on growing-in-place
Più risposte (0)
Vedere anche
Categorie
Scopri di più su Multidimensional Arrays 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!