结果:找到“flat log”相关内容7个,排序为按回复时间降序,搜索更多相关帖子请点击“高级
GARCH模型出现错误:flat log likelihood encountered, cannot find uphill direction
7 个回复 - 9310 次查看 我的数据是上市公司十年4921条研发投入数据,时间有gap,但能保证连续7年及以上有数据,想要做的是对每家公司进行分组回归,构建garch模型,求出研发投入变动趋势,出现错误:flat log likelihood encountered, cann ...2018-11-25 12:31 - Golden-蓉 - Stata专版
The Primordial Density Perturbation: Cosmology, Inflation
0 个回复 - 1557 次查看 By David H. Lyth, Andrew R. Liddle [*] Publisher: Cambridge University Press[*] Number Of Pages: 516[*] Publication Date: 2009-06-30[*] I ...2010-2-3 14:37 - zhaohailei - 金融学(理论版)
ATATA跑nlogit模型时总是出现cannot compute an improvement -- flat region encounte
1 个回复 - 1210 次查看 如题,嵌套模型如下 个人 就诊 自我治疗 (1,4) (2,3) 命令如下nlogit choice i ...2019-5-4 20:07 - 灰灰是我 - 悬赏大厅
egarch模型flat log likelihood encountered, cannot find uphill direction
2 个回复 - 2713 次查看 大家好,求助一下,请问做egarch模型出现错误flat log likelihood encountered, cannot find uphill direction是什么原因?命令为arch var,earch(1) egarch(1)2020-4-15 09:57 - 萝翳渐移曛 - Stata专版
GARCH模型提示(flat log likelihood encountered, cannot find uphill direction)
1 个回复 - 3833 次查看 论坛里有没有大神使用stata运行过GARCH模型,比较了解garch模型的,我在运行Garch(1,1)模型时,总是提示(flat log likelihood encountered, cannot find uphill direction),我的数据是10年的企业年度数据,请问是我 ...2020-1-8 10:55 - zqz要加油鸭 - Stata专版
【学习笔记】Technological progress is marking inflation statistics an un ...
3 个回复 - 306 次查看 Technological progress is marking inflation statistics an unreliable guide to the economy 技术进步使通货膨胀统计数据无法可靠地指导经济 经济学人主题学习笔记英中对照2019-11-14 11:23 - Richardsunhw - Forum
flat log likelihood encountered, cannot find uphill direction
1 个回复 - 3674 次查看 set more off qui arima sale time if code== 1001 & time >= tm(2009-05) & time2015-9-15 23:27 - nbulxy - 经管类求职与招聘