How to do stem plots centered around a function?

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Tompak
Tompak 2017-7-11
回答： KSSV 2017-7-11
Hi!
I want to use stem plots for showing the deviation of measured values from an equation and think stem is a good choice.
However, I have not found a way of doing these stem plots centered from anything else than a constant (basevalue).
Is there anything like a baseline that I could express my equation in and get the stem plots centered around?
Best regards

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KSSV
KSSV 2017-7-11
doc errorbar
x = 1:10;
y = sin(x);
e = std(y)*ones(size(x));
plot(x,y,'b')
hold on
errorbar(x,y,e,'bo','markerfacecolor',[0 0 1])

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