Standard deviation for a field inside a field?

Hey guys,

I have a 1x400 struct, wherein this struct is a field called 'BO', this field called 'BO' contains a struct, which in themselves is a field called 'circles' that ranges from 1:20 rows (they're all different values). How can I access the standard deviation of each of those circle fields? Do I apply a cell conversion or is it possible to leave the data like this?

Thanks!

Answer 1

[Bruno Luong]

arrayfun(@(s) std(s.BO.circle), structarray)

[Walter Roberson]

True.

[Don Calzone]

Mad, thanks!

Answer 2

[Walter Roberson]

cellfun(@(S) std(S.circles), {YourStruct.BO})

This assumes that each BO field is a scalar struct, and that when you say that it has a number of different rows, that each row has exactly one column.