Controllability results for a condition on time scales 0 个回复 - 395 次查看
【作者(必填)】Vipin Kumar and Muslim Malik
【文题(必填)】Controllability results for a condition on time scales
【年份(必填)】2019
【全文链接或数据库名称(选填)】https://projecteuclid.org/euc ...2020-3-2 13:01 - cqnuly - 文献求助专区
滚动回归 R rollapply 3 个回复 - 6939 次查看
现有一个一元回归模型,是股票市场上的日数据,需要按照周度来进行滚动回归。即,每周向前滚动一次,用本周前12周的日数据进行回归。我尝试使用rollapply in zoo package。但是始终编不出程序来, 急切寻求答案啊,, ...2014-10-4 15:24 - 1104271103 - SAS专版
China May Limit Rates on ’Controllable’ Inflation 1 个回复 - 1309 次查看
By Bloomberg News - Jul 7, 2011 China may limit interest-rate increases for the rest of this year as Premier Wen Jiabao bets that a slowing economy will help tame inflation after five moves since mid- ...2011-7-7 16:53 - ycxff - 真实世界经济学(含财经时事)