结果:找到“Sp var”相关内容362个,排序为按回复时间降序,搜索更多相关帖子请点击“高级”
Headway variability in public transport
1 个回复 - 870 次查看
【作者(必填)】Alejandro Tirachini
【文题(必填)】
Headway
variability in public transport: a review of metrics, determinants, effects for quality of service and control strategies
【年份(必填)】
20 ...
2021-9-29 16:35 - peterxu1969 - 求助成功区
stata12.0出现了too many variables specified怎么解决
6 个回复 - 32110 次查看
duplicates drop stock year,force
tsset stock year
gen dtcsp=D.csp_w
gen sqcsp=L.csp_w
gen xqcsp=F.csp_w
gen dttc=D.tc_w
gen dtsize=D.size_w
gen dtlev=D.lev_w
gen csp_state=csp_w*ownership
ge ...
2014-10-27 19:43 - 雪姬之舞 - Stata专版
stata too many variables specified
0 个回复 - 3996 次查看
请哪位大佬帮忙看看问题出在哪呢,结果显示too many
variables specified
代码:
logit y x1 x2 x3 x4 fs fo hcms x1x3 x1x4 x2x3 x2x4, robust
qui sum x1 if e(sample)
local meanx1=r(mean)
qui sum x2 ...
2020-10-4 22:22 - 热爱真理 - Stata专版