Logical indexing of nonscalar structures

Dear All,

I have a nonscalar nested structure s of length n, I need to index field e in s (s.a.b.c.d.e). I can do it with a loop,

for i = 1:length(s)
s(i).a.b.c.d.e  = g(x(i));
end

where x is a logical array. I wanted to know if it is possible to use x for indexing s(x).a.b.c.d.e = g(x); I have lots of such assigments in my code, so it is important to know. For now, I get a dot indexing error when trying the logical indexing.

Thank you,

O

Answer 1

[Matt J]

No, it is not possible.

Answer 2

[Jan]

There is no abbreviation. There is no method for vectorizing the access of nested struct arrays.

Maybe a tiny acceleration:

gx = g(x);
for i = 1:length(s)
  s(i).a.b.c.d.e  = gx(i);
end