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浮生半日
桌上有本沈复的《浮生六记》,目前也只是那天做小火车时看了的第一记而已。 闲是算不上了,但最近确也没什么要紧的事情。虽然学车这件事总是像只苍蝇一样,时不时的总来恶心自己,不过我却没什么办法,去解决掉他,只好由着它,等着教练下一次报名的电话,哎,索性就不去管他。 论文的初稿在今天算是全部完成了,不能说差,比我去年设想的结果,应该说还好上不少,至少,去年我开始想这个题目的时候,还没有想到自己也能找出反转效应,那时候的自己,顶多就一个相关性的认识,想做一做因果分析,但是不知道从何下手。至少现在,我相关性做出来了,结果还行,差强人意。因果分析,也做了一点,但是水平有限,没法更好的做下去。 但是,这是一年前的想法。当我一无所知时,我总会把事情想的比较简单。当我知道一点皮毛时,我才知道我是那么的无知。现在这初稿,要我自己挑毛病,都能挑出一大堆。比如相关性分析,居然是一个个的样本分析,除了张永杰的文章,我目前真没看到第二个人这样做相关性分析。我这样搞,没有其他原因,纯粹是因为简单,OLS容易弄而已。没有一个合适的story就这么搞,总是觉得自己在data mining,或者说胡来。 其次是因果,Granger分析的滞后和单位根的滞后阶数,到现在我也没搞清楚二者是不是要一致。还有回归模型的选取不一致,有的地方取了对数,而有的地方没有取。这样做无非是让结果更漂亮,只是没有故事的话,随意选取实在是不太能说的过去。 还有其他一些,诸如一些数据检测,z统计量,wild test, DW test等等,我当然知道似乎应该做一下,可是完全不清楚是不是一定要做一下,做出来要干什么,哎。现在就处于,知道自己好多东西都不知道,可是年纪大了,看出都看不进去。 本来计划把计量的还是要理一理,但随后功利的想到,以后这些东西自己真会用么,毕竟数学的东西,自己看起来也比较吃力,特别是满纸都是矩阵的变化,看也不是很能看懂。如果没用的话,现在凑合凑合不也过了。 算了算了,不想这些,睡一会去。