How to make each matrix in a cell of equal size by adding NaN?

How may I make each matrix in a cell of equal size by adding NaN? My data is a 1000x1 cell containing 'nx2' sized matrices and looks like this:

A = 
  [8x2 double]
  [6x2 double]
  [9x2 double]
  [6x2 double]
  [7x2 double]
      ...

Answer 1

[Birdman]

An approach:

A={rand(8,2);rand(6,2);rand(9,2);rand(6,2);rand(7,2)};
sizesRow=cellfun(@(x) size(x,1),A);
addition=max(sizesRow)-sizesRow;
for i=1:size(A,1)
    A{i}(sizesRow(i)+1:sizesRow(i)+addition(i),:)=NaN;
end

[Jan]

More efficient:

sizesRow = cellfun('size', A, 1);

cellfun is slow with anonymous functions.

You calculate addition=max(sizesRow)-sizesRow at first and sizesRow(i)+addition(i) inside the loop. Easier:

width = max(sizesRow);
for k = 1:size(A,1)
  A{k}(sizesRow(k)+1:width, :) = NaN;
end

[Birdman]

Thanks Jan.

[Antonio]

Thank you guys. @Birdman @Jan Simon