To "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> Subject st: RE: Re: proper use of if Date Wed, 17 Nov 2010 14:34:34 +0000I agree that -if e(sample)- is a good piece of syntax to know, but otherwise I don't see a practical difference here. If the ...
我试图使用函数和lapply来创建新变量,而不是在循环的数据中工作。我曾经使用过Stata,并且会用类似于讨论的方法来解决这个问题。由于在R中以编程方式命名变量是非常困难的,或者至少是尴尬的(而且您似乎不能在assign中使用索引),所以我将命名过程保留到lapply之后。然后,我将使用一个for循环在合并之前进行重命名,然后...
16.使用“ssc hot”查看最受欢迎的用户贡献的 SSC Stata 包: ssc hot, n(100) 17.在两位数的美国州缩写、州名和州 FIPS 代码之间使用“statstatates”。 capture ssc install statastates sysuse census, clear keep state2 statastates, abbreviation(state2) nogen replace state_name = strproper(state_na...
aQuesta specie è molto polimorfa e non è stata ancora studiata a fondo. Ad esempio nel meridione (e quindi con climi caldi) si presenta in diverse varianti (che secondo Pignatti rientrano nelle variabilità individuali; infatti da alcuni testi queste varianti sono considerate sinonimi ...
Title mi impute chained — Impute missing values using chained equations stata.com Description Remarks and examples References Menu Stored results Also see Syntax Methods and formulas Options Acknowledgments Description mi impute chained fills in missing values in multiple variables iteratively by using ...
只是用来做多开虚拟机用的 主板:超微X9DRD-if 350 CPU: E5-2650V2 *2 630 内存:三星ECC内存16G *2 370 电源:鑫谷650W模组 279 显卡:开机显卡 机箱:先马坦克3 229 风扇:兰硕6铜管 *2 132 固态:先锋128G NVME.M2 159 机械盘:WD 1TB机械 179 分享21 stata吧 寂寞的月光 stata产权性质虚拟变量,整理excel...
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Data were evaluated using Stata statistical software (version 13.0). Users per target area, per time period and per park were calculated to obtain total number of users, number of users by gender and age group, users engaged in sedentary, walking and vigorous activity and the number of users...
Computer Skills (列示了一些计量常用软件,如STATA,SAS,SPSS,EVIEWS等) (ps,以上CV结构的版权应该属于Anting师兄) 在SOP不断的修改过程中,CV也可以进行适当的调整,比如对于research小方向的调整 (比如你在一个没人做urban sociology的学校说你要研究urban sociology,这显然是不 尽合适的),对于independent research的...