Feature vector size normalization

Greetings to all,

I need the solution for my feature vector size. As i have applied GA feature selection algorith on my feature vectors the GA algorithm has given different size vectors.

feature1 = 10000x36

feature2 = 10000x27

feature3 = 10000x34

feature4 = 10000x18

like this i got different feature vectors. Now i need to uniform the obtained feature vectors from GA algorithm

my aim is to make uniform feature vectors like

feature1= 10000x18

feature2= 10000x18

feature3 = 10000x18

please help in this regard

Your help will highly appriciated.

Thanks in advance