storing data in an array

kindly help me how to store data in an empty array without using iterator index: e.g

a1=[]%empty array
for i=1:5
   a1[i]= i;%with iterator 
   %without iterator ?? 
end

please. guide me and sorry if I could not write the question correctly!!

Answer 1

[Andrei Bobrov]

eg:

i1 = 1:5;
a1 = i1;

OR

a1 = 1:5;