Removing lower marker in error plot

Question

Sowmya MR 2016-12-28

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https://ww2.mathworks.cn/matlabcentral/answers/318437-removing-lower-marker-in-error-plot

编辑： the cyclist 2016-12-28

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Hi,

I am trying to plot one sided error plot. Here is the sample code and output. I want to remove the markers circled in red. Can someone please help me with this?

x = 1:10;
X1=rand(13,10);
y = mean(X1);
U= std(X1);
L=zeros(size(y));
errorbar(x,y,L,U,'--k','LineWidth',2)

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Answer 1

the cyclist 2016-12-28

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errorbar(x,y,[],U,'--k','LineWidth',2)

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Sowmya MR 2016-12-28

Thank you. But it gives me an error... "X, Y, and error bars all must be the same length."

the cyclist 2016-12-28

I'm guessing that you have an older version of MATLAB that does not support this syntax. I've posted another solution that might work.

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Answer 2

the cyclist 2016-12-28

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errorbar(x,y,nan(size(x)),U,'--k','LineWidth',2)

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Sowmya MR 2016-12-28

Thank you, i did try nan but it removes the lines as well. (The curve remains but the line connecting the upper markaer and the curve disappears)

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Answer 3

the cyclist 2016-12-28

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https://ww2.mathworks.cn/matlabcentral/answers/318437-removing-lower-marker-in-error-plot#answer_248771

编辑：the cyclist 2016-12-28

在 MATLAB Online 中打开

This solution will not work on newer versions of MATLAB, but I wonder if making the lower error bar in the "wrong" direction will make it overlap the upper one.

I'm not sure which sign makes sense, so try either

errorbar(x,y,U,U,'--k','LineWidth',2)

or

errorbar(x,y,-U,U,'--k','LineWidth',2)