How do I extract a structure array from a single dynamic structure without using for loops?

Im trying to derive a structure array from a single structure without using for loops.

1) I make n copies of the original structure, primal

primalSP = repmat(primal,n,1)

2) I have n sets of m states in the struct primal.states. The size of primal.states is (n*m, nodes) . I want the first set of m states to go to the first structure array, and the second set to the second structure array and so on until all n sets are assigned, like this

primalSP(1).states = primal.states(1:n,:);
primalSP(2).states = primal.states(n+1:2*n,:);
...  

Is there a way to do this without a for loop where n is dynamic?

[KSSV]

Read about reshape, num2cell and cell2struct.

[Shelley Snider]

I'm failiar with those functions. I'm having a hard time understandng how to put them together to get what I want.

[Stephen23]

"I want the first set of m states to go to the first structure array, and the second set to the second structure array and so on until all n sets are assigned"

Then your example should be:

primalSP(1).states = primal.states(1:m,:);
primalSP(2).states = primal.states(m+1:2*m,:);

Answer 1

[Matt J]

There is no way to avoid for-loop speed when dealing with structs and cells. Below is a way to abbreviate the syntax, but both num2cell.m and mat2cell.m have for-loops within them, as you will see if you read those files.

stateCell = num2cell(primal.states,1);
[primalSP(1:n).states] = deal(stateCell{:});