code为：
twoway (scatter pvalue1 coef1, xlabel(-0.002(0.001)0.004, grid) yline(0.1,lp(shortdash)) xline(0.0027,lp(shortdash)) xtitle(Estimation) xlabel(, nogrid) ytitle(p-value) ylabel(, nogrid) msymbol(smcircle_hollow) mcolor(grey) legend(off)) (kdensity coef1, title(Placebo test))

整个背景请描述清楚

应该是代码出现了问题

kdensity coef1