请问上图中为什么图例显示是一个点呀???
作图的命令如下
coefplot, drop(_cons) recast(connected) vertical ciopts(recast(rcap)lcol(black)) ///
lpattern(solild) mcolor(black) lcolor(black red) lwidth(thin thin) yline(0, lcol(black)) ///
graphregion(color(white)) ylabel(-1.2(0.2)0.2) legend(label(1 "Coefficient/95% Confidence Interval")) ///
ytitle("Price Differences between Princeling vs. Non-Princeling" "Land Transactions")
这个命令有问题吗? 试了好多次,legend(label(1 "Coefficient/95% Confidence Interval")) 看不出来有什么问题呀,为什么图例是个点呀?? 求帮助


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