Why cannot I add note to this graph by using the following code?

[Linghui Han]

twoway (scatter astate year) (scatter awagepre year, yaxis(2)title(wage premium)) , ytitle(State employment) xtitle(Year) xlabel(1992(1)2006) legend(order(1 "..." 2 "..." )) title(Fig.2a ..., size(small)) scale(1) note ("Source: UHS")

[Marcos Almeida]

It seems there is a blank space between note and the opening parenthesis.

[Linghui Han]

Thank you very much! That is the reason

[Linghui Han]

And how to label yaxis(2)? It seems that "label yaxis(2)title(wage premium)" in the above code does not work.

[Linghui Han]

I have found the way to solve this problem: ytitle(wage premium, axis(2))

[Marcos Almeida]

My advice is to do like the ancient Romans: divide and conquer. In short, try to work with small pieces of the options, before putting all of them in the same command line.