Unable to perform assignment because the left and right sides have a different number of elements.

i=3;
clmax= zeros(i,1);
for j = 1: 1: i
clmax(j) = del (j).clmax;
end

[the cyclist]

When I run this code, I just get an error because you have not defined del for us.

i=3;
clmax= zeros(i,1);
for j = 1: 1: i
clmax(j) = del (j).clmax;
end

Unrecognized function or variable 'del'.

Can you share the full code that gives the error?

[MG]

function [] = func(del)

i=3;

clmax= zeros(i,1);

for j = 1: 1: i

clmax(j) = del (j).clmax;

end

[Jan]

We still do not know, what the comtents of del(j).clmax is. If the contents of the fields are not scalars, the assignment must fail.

[MG]

here del(j) is a 1X3 struct array

[Jan]

The size of del does not matter, but the size of its fields clmax.

Answer 1

[Jan]

The error means, that the contents of the fields clmax are not scalar. Check this:

clmax = {del.clmax};
s     = cellfun('prodofsize', clmax)

Storing the data in a cell array is the best way, if the fields have different sizes. If call have the same dimension, you can concatenate them to a matrix or a n-dim array:

clmax = cat(1, del.clmax)  % Or 2, 3, or what ever

You see, that neither for a cell array nor for a numerical array a loop is required.