plot mean value according to confidence interval

A.U

New Member
#1
Hi all,

i have a very simple question, because i am not good at statistics but i need that :)
I have two signals, one is lets say 'x' another is 'time', so its a time serie. I need to find the upper and lower values of my signals according to confidence interval and then show them on a graph. (like in this photo). I learned that i have to first to plot mean value too. But mean value is a number but my signal has like 5000 number. If i am plotting mean value, its just line. I don't get this point. Can somebody explain that? Thank you!
 
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