How do you append a vector to another vector within a loop?

I calculate a vector within a for loop and wish to append all the vectors that I calculate in that loop together. How do I do this efficiently?

[Arif Hoq]

Please attach your data and Code.

Answer 1

[Rik]

The efficient way is not to do that. Use indexing instead. If the vectors are not equal length you can put them in a cell array first and then use this:

out=vertcat(out{:});% or horzcat