Plotting a field from a struct inside a struct

Hey everyone,

I have this 1x543 struct called BB, inside BB is one field called 'blobs' that contains 543 unqiue structs of various sizes (some empty!). Inside each of these 543 struct is one common field called 'Area', I want to plot Area per total number of fields (543).

I created a few pieces of code to extract data, but I keep ending up plotting the Area values vs the number of areas inside its own struct.

Any ideas? Thank you!

Answer 1

[Sudheer Bhimireddy]

Try this:

nBlobs = numel(BB);
h = figure;
clf;
hold on;
for i = 1:nBlobs
    x = i;
    temp = BB(i).blob;
    temp_size = numel(temp);
    if temp_size == 0
        % This is if you have 0x1 in a BB(i).blob
        % If you dont want to plot 0, simply remove below line
        plot(x,0,'ko');
    else
        for j = 1:temp_size
            y=temp(j).Area
            plot(x,y,'ko');
        end
    end
end

Hope this helps.

[DP]

Ah, this makes a lot of sense. Thank you!