Accessing Specific Data Field In Ground Truth Data

2 次查看（过去 30 天）
Matpar
Matpar 2020-4-20
评论： Matpar 2020-5-5
Hi All,
I have my goundtruth .mat file with some fields empty and I am trying to select data from only the rows and colums that contains data in all four fields!!
I am not certain how to start the code but i am guessing this is a for loop or rather a while loop!!
Here,s my take on this but it is wrong, I am learning and some day I will get this but I need to understand how to start this!
This is my code
Fullfields= 0;
while SDataTable(:,:) == []
Fullfields = (Fullfields + 1)
end
disp(Fullfields);
Can someone help me please!
Please see image of my task!
  2 个评论
Vinai Datta Thatiparthi
Vinai Datta Thatiparthi 2020-4-23
Hey!
Can you share that .mat file with us? That would certainly help in arriving at a solution faster.
Matpar
Matpar 2020-4-23
Hi Vinai Datta Thatiparthi and thanx in advance for responding,
I am tryin to automate this process by selecting data from the fields that is highlighted by the red arrows only!
The matfile is attached and thank you in advance once more!

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Vinai Datta Thatiparthi
Hey!
This should work -
data = load('Shooting.mat');
vals = data.Shooting.LabelData;
% Use cellfun to identify which elements within the timetable are empty
idx = all(~cellfun(@isempty,vals{:,:}),2);
% variable 'out' will contain only those rows which have all non-empty values
out = vals(idx,:)
Here's the Doc link for cellfun.
Hope this helps!
  3 个评论
显示 1更早的评论
Vinai Datta Thatiparthi
Vinai Datta Thatiparthi 2020-4-24
Hey!
The MATLAB function cellfun works on cell arrays. However, the data that we're working with (vals) is of type timetable.
Using
vals{:,:}
would expand its contents and result in all the cell arrays within the timetable vals.
Secondly, you can mention the dim argument in the function all. This specificies the dimension along which you want the operation to happen. In this case, I want to check if in every row within vals, all elements are equal to 1, and that is why I mentioned '2' as the dimension. Therefore, giving a value of 5 would not work and will result in an error.
Hope this helps!
Matpar
Matpar 2020-5-5
Thanx it really did! thank you loads, multi_tasking sorry for the later response

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Whos 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by