twoway (scatter pvalue1 coef1,xlabel(-0.015(0.01)0.015,grid))///
yline(0.1,lp(shortdash)) ///
xline(0.0128,lp(shortdash)) xtitle("估计系数") ///
msymbol(smcircle_hollow mcolor(red) legend(off)) ///
(kdensity coef1,yaxis(2) legend(off) title("安慰剂检验")),ytitle("P值",axis(1)) ytitle("核密度估计",axis(2))
这是我的代码，请教老师如何修改