MATLAB: Plot and calculate error bar

error bar

I want to calculate and plot error bar of this data

 X=40:1:225;
 Y =0;0; 0......

Y is the results from calculating.

 plot(X,Y)
 and plot error bar

Thanks

Best Answer

It's really difficult to provide any further help without you offering a more thorough description of your problem, but the errorbar function will plot your curve with confidence intervals that you specify. As for the specific values of the error itself, that's really up to what measurement of error is appropriate for your situation.

http://www.mathworks.com/help/matlab/ref/errorbar.html

Related Solutions

MATLAB: Bar plot with error bar

Here's a demo using your data.

count = [10, 21, 32]; 
errLim = [4, 11, 19; 18, 28, 37]; 
err  = errLim - count; 
figure;
bar(count)
hold on
errorbar(1:length(count), [10, 21, 32], err(1,:), err(2,:), 'LineStyle','none')
set(gca, 'xtick', 1:length(count), 'xticklabel', {'A' 'B' 'C'})

MATLAB: Error Bars

There are a number of functions on the FEX that should allow you to do this. I haven't used any of them, but

http://www.mathworks.com/matlabcentral/fileexchange/290-eplots

looks promising.

If that doesn't work for you maybe this one will:

http://www.mathworks.com/matlabcentral/fileexchange/5444-xyerrorbar

Best Answer

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MATLAB: Bar plot with error bar

MATLAB: Error Bars

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