How do I create an animated errorbar?

Is there a way to create an animated errorbar similar to an animated line?

Answer 1

[MathWorks Support Team]

You cannot make an animated line directly from an errorbar, but you can draw the error bar in steps to make it appear animated:

x = 1:10:100;
y = [20 30 45 40 60 65 80 75 95 90];
figure
ax = gca;
axis([0 100 10 110]);

for k = 1:numel(x)
    % all values until the current time step
    xVals = x(1:k);
    yVals = y(1:k);

      % error bars will be 5 units below and 10 units above each point
      negativeDelta = 5*ones(1,numel(yVals));
      positiveDelta = 10*ones(1,numel(yVals));

      % draw the error bar
      errorbar(ax,x(1:k),y(1:k),negativeDelta,positiveDelta);

      % maintain axis limits since errorbar function will dynamically change
      % the axis limits
      axis([0 100 10 110]);

      % pause between time steps to simulate animation
      pause(0.5)
  end