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I have a structure compiled from imported (x,y) datasets in the form of variable.dataset(i).x(:), variable.dataset(i).y(:) where the lengths of x&y are the same within the same dataset, but may differ between datasets i.e.:

variable.dataset(1).x = [1 2 3 4]';

variable.dataset(1).y = [9 8 7 6]';

variable.dataset(2).x = [3 4 5 6 7 8]';

variable.dataset(2).y = [1 9 2 8 3 7]';

is there a way to generate a single bar(x,y) figure containing all the x/y dataset pairs?

Matt Fig
on 25 Sep 2012

Edited: Matt Fig
on 25 Sep 2012

As long as your x data does not contain duplicates:

% Data. Note the x has no duplicates.

variable.dataset(1).x = [1 2 3 4]';

variable.dataset(1).y = [9 8 7 6]';

variable.dataset(2).x = [5 6 7 8 9 10]';

variable.dataset(2).y = [1 9 2 8 3 7]';

bar(vertcat(variable.dataset(:).x),vertcat(variable.dataset(:).y))

If you meant that you want two bar plots on the same figure, do this:

bar(variable.dataset(1).x,variable.dataset(1).y)

hold on

bar(variable.dataset(2).x,variable.dataset(2).y,'r')

Matt Fig
on 25 Sep 2012

Hopefully you have left nothing out this time!

variable.dataset(1).x = [1 2 3 4]';

variable.dataset(1).y = [9 8 7 6]';

variable.dataset(2).x = [3 4 5 6 7 8]';

variable.dataset(2).y = [1 9 2 8 3 7]';

variable.dataset(3).x = [1.5 2.5 3.5].'; % Non-integers.

variable.dataset(3).y = [6 7 8].';

variable.dataset(4).x = [1.5 2.5 3.5 6.5].';

variable.dataset(4).y = [2 1 3 8].';

U = unique(vertcat(variable.dataset(:).x));

MY = nan(length(U),length(variable.dataset));

MX = repmat(U,1,size(MY,2));

for ii = 1:length(variable.dataset)

R = ismember(MX(:,1),variable.dataset(ii).x);

MY(R,ii) = variable.dataset(ii).y;

end

bar(MX,MY)

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