Joining multiple 1xn cell arrays into mxn cell array

Hello I have a function that returns a containers.Map object with values as 1xn cell arrays. For example

map=containers.Map({'OBJECT', 'COLOR', 'WGT'},{{'obj1','obj2','obj3'},{'red','blue','green'},{1.2,2.54,8.12}});

The values in map are 3 1x3 cells.

>> map.values

ans = 

    {1x3 cell}    {1x3 cell}    {1x3 cell}

I would like to join the 3 1x3 cell data into 3x3 cell data like this

   >> transpose([{'obj1','obj2','obj3'};{'red','blue','green'};{1.2,2.54,8.12}])

   ans = 

    'obj1'    'red'      [1.2000]
    'obj2'    'blue'     [2.5400]
    'obj3'    'green'    [8.1200]

How do I do this?

Thanks Bhaskar

Answer 1

[Star Strider]

One possibility:

v = map.values;
vc = [v{1}', v{2}', v{3}']

vc = 
    'red'      'obj1'    [1.2000e+000]
    'blue'     'obj2'    [2.5400e+000]
    'green'    'obj3'    [8.1200e+000]

[Bhaskar Edara]

How do I make this dynamic. The size is not always 3. Can vc be made by a loop or some other construct?

[Star Strider]

This works:

vc = [];
for k1 = 1:size(v,2)
    vc = [vc, v{k1}'];
end

That assumes they’re all the same length.

[Bhaskar Edara]

I was able to do this using your idea.

   vc=cell(3,3);
   keys=map.keys;
   for i=1:3
      vc(:,i)=map(keys{i});
   end

Thank you

[Star Strider]

My pleasure.