How do I work with a two dimensional array with for loops in MATLAB?

How can I do two dimensions array using a FOR loop? Example:

P = {k,l,m,n};
L = 4;
for i=1:L
   New(i) = P(i); 
end

I don't know how can i do write that result was array in two dimension: New = {k,l,m,n;k,l,m,n;k,l,m,n;k,l,m,n};

Answer 1

[Pepa]

I did it:

for o = 1:O
    zap(o,i) = varr(o);
end       
F = length(zap);
for i = 1:K
    for a = 1:F
        kunn(a,j,i) = zap(a); 
    end
end

Answer 2

[Sean de Wolski]

Best way would be:

 New = repmat(P,4,1);

You should also read up on indexing cell arrays.