Appending column vectors produced from a for loop

Hello, i wish to append end to end column vectors produced in a for loop. Eg if two column vectors given below are produced from a for loop.

1 8

2 6

3 1

4 9

these two column vectors then append/merge one at the end of the other to

1

2

3

4

8

6

1

9

Could anyone kindly assist on how to go around this. Kindly provide me a solution whereby the for loop was producing say 20 column vectors thereby appending all these 20 column vectors

thank you

Answer 1

[julian navas]

There are several ways to accomplish what you're saying, unfortunately the question does not provide enough information to delimit the scope of the answers you could get and thus the one you really need.

%option1
for i = 1:3
    vec1 = rand(4,1)
    vec2 = rand(4,1)
end
var = [vec1;vec2]

%option 2
var = [];
for i = 1:3
    var = [var;rand(4,1)]
end

...and so on, depending on the data structure you have.