Your .var
field is probably initialized to a double when you make the assignment (maybe to []
). Using a.var(i) = xxx
cannot change the type of a.var
.
Try resetting the value the first time it is used. EG
for i = 1:10
if i == 1
a.var = B(); % Overwrite the existing value
else
a.var(i) = B(); % Now append to that value
end
end
This will cause your a.var
field to be reallocated every loop. Pre-allocated your array will make everything go much faster. The easiest way to pre-allocate is actually to just loop backwards, like this:
for i = 10:-1:1
if i == 10
a.var = B(); % Overwrite the existing value, allocated room for 10 elements
else
a.var(i) = B(); % Assign each element in turn, 9 through 1
end
end