Find value in an NxMxP array and return index

I have an N x M x P array. Its filled with all possible values of a parameter. I'm looking for the value closest to a target I have. I need to find that value and the index of said value.

I've played around with these functions but they don't work the way I want them.

[C, I] = min(min(min(abs(theta-targettheta))));
thetafound=abs(targettheta-C);

this only return the p index not the n or m

[C, I]=min(abs(theta-targettheta),[],3);

this isn't returning just 1 result or the array even.

Any ideas?

Answer 1

[Stephen23]

>> val = 9;
>> X = reshape(1:36,3,3,4) + rand(3,3,4);
>> [C,I] = min(abs(X(:)-val));
>> X(I)
ans =  9.3895

Or with a different value:

>> val = 24;
>> [C,I] = min(abs(X(:)-val));
>> X(I)
ans =  23.642

Note that min returns the linear index, not a subscript index.