Adding standard deviation to a line chart

[mingyu]

I want to add a standard deviation on a line chart, showing only the upper bar, something like this.

[F_B · Accepted solution]

Can you please explain what you mean by standard deviation?

[mingyu]

Y-axis column is 'a', standard deviation = STDEV(a)/SQRT(count(a))

For example, if a point's value is 500, the upper bar might be 10; I need to display this upper bar.

[F_B]

Thanks for the clarification.

I'll look at it to see if I can help you.

[mingyu]

Thanks.

[F_B]

In your line chart you can add a second measure, with your expression: STDEV(a)/SQRT(count(a))