Hello everyone,

I need to draw a lineplot for paneldata.
I used the following command:

collapse (mean) housingindex, by (agegroups wave)
sort agegroups wave
xtset agegroups wave
xtline housingindex, overlay

That worked. But now I need to draw the standard deviation in this plot, also.
The byoptions are limited in the xtline-command, when overlay is used.

Do you know, if there is any possibility to add the standard deviation to the plot?
Maybe addplot-option could work - but I don't understand, how that works.

Thank you in advance!

Mimi