Using string saved variables for calculations
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
If I have variables with varying names (Z_1,Z_2,Z_3,etc) with assigned values of z made by num2str as shown below;
for v=1:18
eval(['Z_' num2str(v) '=z'])
end
and each has stored a matrix inside (Z_1 is a 10x10 matrix, and so on for each Z_n), and I want to sum up the matrices without having to enter TotalZ=Z_1+Z_2+Z_3...Z_18, is there any quick way of referring to the variables? I mean, something of the kind of :
TotalZ=sum('Z_'num2str(v))
I can't seem to find a way of using those stored variables to o anything, if I dont enter them directly by hand. I need to know the right way of referring to the variables for using them for any calculation. Thanks in advance.
0 comentarios
Respuesta aceptada
Titus Edelhofer
el 4 de Jun. de 2012
Hi,
generally speaking you can do the same as before:
TotalZ = 0;
for v=1:18
TotalZ = TotalZ + eval(['Z_' num2str(v)]);
end
But I would suggest to use cellarrays directly:
allZ = cell(1, 18);
for v=1:18
all{v} = z;
end
Working with the cell array later will be much easier, e.g.,
allZ3D = cat(3, allZ{:});
TotalZ = sum(allZ3D, 3);
Titus
Más respuestas (1)
Ver también
Categorías
Más información sobre Characters and Strings 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!