Flatten nested cell arrays

Linearize a cell array tree structure

Description

 C1 = flatten({{1 {2 3}} {4 5} 6})
 C2 = flatten({{'a' {'b','c'}} {'d' 'e'} 'f'})
 
% Outputs:
 C1 =
     [1] [2] [3] [4] [5] [6]
 C2 =
     'a' 'b' 'c' 'd' 'e' 'f'

• MATLAB release: MATLAB 7.10 (2010a)

[Manu Raghavan]

You can use this function to flatten the output from Bloomberg's unordered BLP interface in the Datafeed Toolbox.

[Richie Cotton]

 

[David Goldsmith]

Has anyone used this w/ struct2cell to flatten nested structs? Any surprises/non-intuitive behaviors observed?

[David Goldsmith]

Never mind, just answered my own ?: you lose all the field keys! Plus, struct2cell isn't recursive, so it only flattens the top of the tree. Still, it gives me something to start from. If I can write something that works robustly, I'll post it.