How to define array without size and append values
37 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
NoYeah
el 14 de Abr. de 2020
Comentada: NoYeah
el 14 de Abr. de 2020
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 comentarios
Respuesta aceptada
Walter Roberson
el 14 de Abr. de 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
Más respuestas (0)
Ver también
Categorías
Más información sobre Multidimensional Arrays en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!