MATLAB: Conditionally select from array of struct by membership of a list in struct element

arrayconditionalismemberMATLABstruct

Here's my array of structs:
X(1).Members=[1 2]
X(1).Name="Group 1"
X(2).Members=[2 3]
X(2).Name="Group 2"
Here's the conditional selection form I'm familiar with. I'm hoping there's a better way to express this:
A=[X(ismember(1,[X.Members])).Name]
A = "Group 1"
A=[X(ismember(2,[X.Members])).Name]
A = "Group 1"
A=[X(ismember(3,[X.Members])).Name]
A = "Group 1"
A=[X(ismember(4,[X.Members])).Name]
A = []
Since the 'ismember' operator returns a logical, the expression as formed returns the index of X to 0 or 1.
I would like to apply an expression to X and return each struct in X where a member is in the list of Members in the struct.

Best Answer

X(1).Members = [1,2];
X(1).Name = 'Group 1';
X(2).Members = [2,3];
X(2).Name = 'Group 2';
F = @(n)arrayfun(@(s)any(s.Members==n),X);
F(1)
ans = 1x2 logical array
   1   0

F(2)
ans = 1x2 logical array
   1   1

F(3)
ans = 1x2 logical array
   0   1

F(4)
ans = 1x2 logical array
   0   0
If you really want to use ismember, replace the anonymous function with this:
@(s)ismember(n,s.Members)
Related Question