Finding min and max values in a structure

For a 1x1 structure with multiple fields, each field consisting of a cell of numbers, how can you find the minimum and maximum values over the entire structure?

Answer 1

[David Hill]

d=struct2cell(yourStruct);
m=0;M=0;
for k=1:length(d)
   m=min([m,d{k}]);
   M=max([M,d{k}]);
end

[L'O.G.]

I get an error for both lines in the loop:

`Invalid data type. First argument must be numeric or logical.`

Answer 2

[Matt J]

each field consisting of a cell of numbers

If you really do mean a cell array, that seems like an inadvisable organization of the data. You should probably have each field be a numeric matrix.

yourStruct.a=[1,2];
yourStruct.b=[3 4; 
              5 6];

Max = max( structfun(@(z)max(z,[],'all'), yourStruct) )

Max = 6

Min = min( structfun(@(z)min(z,[],'all'), yourStruct) )

Min = 1

Answer 3

[Voss]

"a 1x1 structure with multiple fields, each field consisting of a cell of numbers"

yourStruct.a={1,2};
yourStruct.b={3 4; 
              5 6};

Max = max( structfun(@(z)max([z{:}],[],'all'), yourStruct) )

Max = 6

Min = min( structfun(@(z)min([z{:}],[],'all'), yourStruct) )

Min = 1

Another way:

d = struct2cell(yourStruct);
m = NaN;
M = NaN;
for k = 1:numel(d)
    m = min([m,d{k}{:}]);
    M = max([M,d{k}{:}]);
end

disp(M);

     6

disp(m);

     1

[Voss]

@Sean de Wolski: This answer is not a copy of the other answers. This answer uses the methods proposed by the other answers, adapted to work for a structure of cell arrays of numbers (as opposed to a structure of numeric arrays, which the other answers work for), which is the description given in the question, and which neither other answer works for.