平行趋势检验画图一直显示axis.new: class member function not found
(error occurred while loading twowaygraph_g.class)
twowaygraph_g.new (rspike __00000E __00000F __000003 if __000002==1, pstyle(p1) lpattern(dash) msize(medium) recast(rcap)) (scatter
__000006 __000003 if __000002==1, pstyle(p1) msymbol(circle_hollow)) (line __000006 __000003), xlabel(1 `"pre4"' 2 `"pre3"' 3
`"-2"' 4 `"0"' 5 `"1"' 6 `"2"' 7 `"3"' 8 `"post4"', nogrid angle(horizontal) ) xscale(range(.5 8.5)) yti("") xti("")
legend(label(2 `"."') all order(2) off) plotregion(margin(l=0 r=0)) yline(0,lcolor(edkblue*0.8)) xline(5, lwidth(vthin)
lpattern(dash) lcolor(teal)) ylabel(,labsize(*0.75)) xlabel(,labsize(*0.75)) ytitle("政策效应",size(small))
xtitle("政策前后",size(small)): class member function not found
twoway is not a valid graph subcommand
r(198);
哪位大神可以帮忙看看哪里有问题吗


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