Largest column of a matrix

Given an m by n matrix, the e. g. A=[3, 1,2;3,1,1;3,6,2] I want write a Matlab function that finds which of the collumn of A has the highest norm and returns it. This is my attempt

function v=maxivect(A) 
  [m, n] =size(A);[i, j] =find(ismember(A, ceilmax((normvector(A, inf))) )); v=A(:,j);
end

Instead of getting back the vector having the maximum norm, mostly it returns empty vector while it is not. It works fine with example above but not all, for example if A=rand(3)

Answer 1

[dpb]

Try

function v=maxivect(A) 
  [~,ix]=max(arrayfun(@(i) norm(A(:,i)),[1:size(A,2)]));
  v=A(:,ix);
end

[Omar]

Thanks dpb, this works perfectly.