大佬能帮我看看我的命令是不是有问题,在学psm,一对一匹配时用bootstrap命令计算标准误没问题,但用其他方法就不行,会报错r(att)command not found,命令如下 set seed 10101 gen ranorder = runiform() sort ranorder psmatch2 did $xlist , out(y) n(1) ate ties logit common bootstrap r(att) r(atu) r(ate),reps(500):psmatch2 did $xlist , out(y) neighbor(1) ate ties logit common qui psmatch2 did $xlist , out(y) neighbor(1) ate ties logit common pstest $xlist, both graph psgraph psmatch2 did $xlist, out(y) llr ate ties logit common quietly bootstrap r(att) r(atu) r(ate), reps(500):psmatch2 did $xlist, out(y) llr ate ties logit common