请问如何用stata画wagstaff的集中曲线图???
以下是我自己做的命令,conindex
请问如何用stata画wagstaff的集中曲线图???
以下是我自己做的命令,conindex health, rankvar(perhhin_cpi) bounded limits(0 1) wagstaff graph
但是总是提示这个:Graph option only available for ratio-scale variables - please also specify the truezero option if th
> e variable is ratio-scale or the bounded option if the variable is bounded.但我加了bounded命令了,威慑呢们还是这样??