S456917 SKBIM: Stata module to generate a sample from a bimodal distribution using normal or skewed (skew-normal) unimodal distributions, as defined by the user byEvangelos Kontopantelis S456916 SKNOR: Stata module to generate a sample from a normal or skewed (skew-normal) distribution, as de...
datedv varlist , [get() format() prefix() keepnum replace] varlist:把日期文本放进去,后面的 format 指定格式即可。可以 help date 查看可用的格式,默认是 "YMD",即 2023/12/15 2023-12-03 这种。 get:需要获取的处理结果。可用 year month year_month day week quarter。默认只生成 year。如果输入 ...
Stata统计分析常用命令汇总一winsorize极端值处理范围:一般在1和99分位做极端值处理,对于小于1的数用1的值赋值,对于大于99的数用99的值赋值。1Stata中的单变量极端值处理:stata 11.0,在命令窗口输入findit
gen date=regexm(会计期间,"12-31") keep if date==1 gen year=substr(会计期间,1,4) drop if 报表类型=="B" drop date 会计期间 报表类型 order 证券代码 year save 资产负债表 ,replace 这里是对于前面的Excel导入的资产负债表数据进行stata数据整理,这里详细讲解一下: regexm(variance,……)这里的意思...
S458725 ANYTHINGTODATE: Stata module to convert all types of date variables to Stata date variables by Nobuaki Michihata S458724 SPECCHECK: Stata module to check model specification by Nikolai Cook S458723 INEQORD: Stata module to calculate indices of inequality and polarization for ordinal data ...
Staying on the most up-to-date version of Stata is now easier than ever. StataCorp continually develops new features to enhance Stata software, from the latest statistical methods to the best in reporting, data visualization, and the user interface. With StataNow™, you do not have to wa...
(将关键词相同的多个样本合并为一个)命令格式:duplicates drop varlist ,force 例如将同一企业在同一天发生的多起并购合为一起,可根据证券代码和公告日期关键词,将其合并,命令:duplicates drop company_id event_date ,force 十三、均值t检验命令格式:ttest CAR1 == CAR2, unpaired 十四、中位数Z检验(非参数...
Most of the techniques described in this book did not exist prior to World War II, and many of the techniques date from just the last few decades. The novelty of these techniques is somewhat surprising, given the importance of forecasting in general and of predicting the future consequences ...
StataNow as well as some additional new ones. Users of StataNow will automatically be able to upgrade to Stata 19 — actually, they will upgrade to StataNow 19.5 when Stata 19.0 comes out, and over time StataNow 19.5 will get additional features as soon as they are ready from the Stata...
| 08jan2001 1295.86 -2.48999 | +---+ */ graph twoway bar change date in 1/50, /// graphregion(fcolor(white)) plotregion(fcolor(white)) 它好处在于它能够与其他 twoway 家族的绘图类型结合使用。 代码语言:javascript 复制 use https://www.stata-press.com/data/r17/sp500, clear graph two...