findit winsor

help winsor

tobit，回归不收敛。由于大部分是零值，无法取对数，用winsor，结果即使winsor gvar, generate(gvar2) p(0.25)仍然不行啊，结果还是：

Obs. summary:       4169  left-censored observations at gvar2<=0
                      4496     uncensored observations
                         0 right-censored observations
Warning: convergence not achieved

请教还有什么好方法没有，谢谢：）