How do I add label/Legend, percentage, and explode all at once?

What I have so far is,

(See Attached Photo, left pie)

x = [0 46 0 57 90];

explode = [0 0 0 0 1];

labels = {'A', 'B', 'C', 'D', 'E'};

title('Title here!')

pie(x, labels)

Which gives me only the correct label(Since 1&3 are zeros, it does not show up. Only 2,4,5 AND it labels correctly), but with no percentage, or explode

BUT, if I were to do it this way.

(See Attached Photo, right pie)

explode = [0 0 0 0 1];

labels = {'A', 'B', 'C', 'D', 'E'};

pie(pieChart,explode)

title('Title here')

legend(labels, 'Location', 'southoutside', 'Orientation', 'horizontial');

This way gives the percentage, explode, but the incorrect legend label. Because 1,3 is zeros. It still shows as A,B,C in the legend. Ideally I can just do labels = {'B', 'D', 'E'}; but I don't want to do it manually. Because I'm certain there is a way

I don't care if I have legend or labels, as long as it has the correct label.

Sorry if I'm not clear, and thank you!

Answer 1

[emehmetcik]

You can try using very small percentages instead of zeros:

x = [0 46 0 57 90]+eps; % Make them all non-zero
explode = [0 0 0 0 1];
labels = {'A', 'B', 'C', 'D', 'E'};
pie(x,explode)
title('Title here')
legend(labels, 'Location', 'southoutside', 'Orientation', 'horizontial');

[Mary Ng]

I can't change the values. I know how to. But they're fixed values that cannot be changed. Is there any other method?

Answer 2

[emehmetcik]

Not an elegant way but try this:

x = [0 46 0 57 90]; 
x_idx = 1 : numel(x);

explode = ones(size(x)); 

xx = x(x~=0);
x_idx = x_idx(x~=0);

labels{1} = 'A';
labels{2} = 'B';
labels{3} = 'C';
labels{4} = 'D';
labels{5} = 'E';

h = pie(x, explode);

for k = 1 : numel(xx)
    set(h(2*k-1), 'DisplayName', labels{x_idx(k)})
end

title('Title here')
legend('toggle')