Indexing in fields of a struct

Hi, in the attached .MAT file, I have a struct partitionsInfo in which I want to read partitionsInfo.frames using indexing to find which section includes a particular number. For example partitionsInfo(1).frames contains number 1 as well as partitionsInfo(2).frames. Loops are not what I am looking for as currently I am working on test data and final data will be quite large already.

Another case would be where one particular number, say 4, is a part of 3 partitionsInfo.frames so the solution should give index for those 3 rows and for the test of the rows give zeros.

--Waqas

Answer 1

[James Tursa]

Loops are what is needed here, but you can hide the loops behind function calls if you want. E.g.,

k = 3; % the number you are trying to find
x = arrayfun(@(i)any(partitionsInfo(i).frames==k),1:numel(partitionsInfo)); % logical indexes of elements you want
result = partitionsInfo(x);

[waqas]

I was actually trying something similar initially with structfun but was unsucessful. Thank you for the eligant solution.