结果:找到“fractional polynomial”相关内容5个,排序为按回复时间降序,搜索更多相关帖子请点击“高级
Dynamic Cox Modelling Based on Fractional Polynomials
1 个回复 - 617 次查看 【作者(必填)】Berger, UrsulaSchäfer, Juliane Ulm, Kurt 【文题(必填)】Dynamic Cox Modelling Based on Fractional Polynomials: TimeVariations in Gastric Cancer Prognosis, 【年份(必填)】2003 ...2017-2-17 11:34 - yuanhaixia - 求助成功区
[求助] stata 进行fractional polynomial regression
3 个回复 - 6006 次查看 求助:我在用stata 进行fractional polynomial regression时,结果会把自变量自动除以10,如自变量为a,获得的最佳指数为-2,-1两个;回归过程会生成2个新的变量: -> gen double Ia__1 = X^-2-.0669737663 if e(sa ...2010-5-31 15:52 - maggiesue - Stata专版