I am trying to implement the Brooks-Iyengar algorithm for sensor fusion, and am trying to represent the following data structure in MATLAB.
A = {([1.5,3.2],4), ([0,2.7],5), ([0.8,2.8],4)}
I tried doing the following
B = {{[1.5,3.2],4},{[0,2.7],5}}
But then I don't know how to access each element, i.e. 1.5, 3.2 and the 4 as well as the next set of values. I get one set of elements from B{1}, but am not able to get the individual values after.
Any ideas or pointers to appropriate links would be helpful.
With the current structure, you can simply continue the indexing:
>> B{1}
ans =
[1x2 double] [4]
>> B{1}{1}
ans =
1.5000 3.2000
>> B{1}{1}(2)
ans =
3.2000
>> B{1}{2}
ans =
4
To remove an item from the main structure you can use the following syntax B(1) = [];:
>> B = {{[1.5,3.2],4},{[0,2.7],5}}
B =
{1x2 cell} {1x2 cell}
>> B(1) = []
B =
{1x2 cell}
>> B{1}
ans =
[1x2 double] [5]
>>
You could also choose to represent the data in a structure array (with some better property naming):
>> s = struct('prop1',{4, 5},'prop2', {[1.5,3.2], [0,2.7]})
s =
1x2 struct array with fields:
prop1
prop2
>> s(1).prop1
ans =
4
>> s(1).prop2
ans =
1.5000 3.2000
>> s(1).prop2(2)
ans =
3.2000
To remove an item, you can use the similar syntax:
s(1) = []
If you want to performs some operations on the data elements, you can also choose to go with the OOP approach, and create a class that represents a single data element and optionally one that represents the whole data set. Accessing the data members is natural.