Making array of structure

Post date: Aug 31, 2011 1:30:54 PM

Approach I: Making an empty array of structure

1. Make an array of structure:
   1. sa = struct('image',{}, 'N_pixel',{}, 'imagename',{});
2. Replicate the structure array
   1. SA = repmat(sa,[10 5]);

Approach II: is to first make a cell array, then convert to array structure

1. Make a cell array
   1. fieldName = ('image', 'N_pixel', 'imagename');
   2. N_ROW = 10; N_COL = 5;
   3. sa = cell(N_ROW, N_COL, 3); % 3 here is the number of fields name
2. Convert the cell array to structure
   1. SA = cell2struct(sa, fieldName, 3); % 3 here is the dim=3 of the cell array
   2. for more information, visit MATLAB page.

Note: Reportedly, structure array is slower than using cell array and can potentially break when running in parallel mode.