How to do stem plots centered around a function?

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

Answer 1

[KSSV]

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])