missing a bracket in code for twoway

[Denise Vella]

I keep getting the error ) required

twoway (kdensity totalscore if treatment ==1 & _weight!=., bwidth(10)) (kdensity totalscore if treatment ==0 & _weight!=., bwidth(10)) legend(order(1 "Treatment" 2 "Control") ring(0) cols(1) pos(1)) ylabel(,angle(h) format(%3.1f)) title("Density") xtitle("Score")

Can you spot the error?

[Nick Cox]

I didn't spot the error but I may have removed it.

twoway kdensity totalscore if treatment ==1 & _weight!=., bwidth(10) ///
|| kdensity totalscore if treatment ==0 & _weight!=., bwidth(10)        ///
legend(order(1 "Treatment" 2 "Control") ring(0) cols(1) pos(1))      ///
ylabel(,angle(h) format(%3.1f)) title("Density") xtitle("Score")

Personal taste : I dislike the () notation for different commands. There are quite enough () already!

Strong suggestion : When a command gets this complicated, use a do-file if you aren't doing so already. Split any long command into several lines.

[Denise Vella]

thanks for your suggesstion yes, separting out with || makes more sense