recode a (1 2=20) (3 4 5=1) (6=.) ,gen (f) //先新增一列f,使f=a, 再重新编码f,使f中的1和2改为20,3、4和5改为1,6改为空白 *常见错误如下 recode d (1 10=20) //会显示recode only allows numeric variables,即重新编码只允许数值变量 *---* collapse (sum)a //求和a 最后只...
Labels variables and select_one values. Note that Stata can only label numeric values, so the template will only label select_one values when all possible values are numeric. Note also that variable labels are truncated at 79 characters, but the template also adds a "note" to each field wit...
6 recode — Recode categorical variables Referring to the minimum and maximum in rules recode allows you to refer to the minimum and maximum of a variable in the transformation rules. The keywords min and max may be included as a from-value, as well as a to-value. For example, we might...
ordername is any sequence of characters permitted in a Stata name; only the first 6 characters are significant. varlist is any list of variables in the current dataset; if varlist is absent, its place is taken by the keyword all so that vorder save ordername records the current ordering ...
is about 20 times faster than thedestringcommand. Theinlist,inrange, andrecodefunctions also perform considerably better than the equivalentrecodecommands (13 to 70 times faster), especially for string variables, and are often easier to write and to read. ...
Mr Figurant:Stata学习:CSMAR并购重组数据库!5 赞同 · 2 评论文章 清洗数据 1. 筛选数据 用Stata: useZephyr_CHN_2022,clearkeepifregexm(Dealstatus,"Completed")dropifmi(y)foreachiinBMJEKY{dropifAcquirorcountrycode=="`i'"dropifTargetcountrycode=="`i'"}dropifAcquirorcountrycode==Targetcountrycodede...
[Stata] Data cleaning 3: Recoding / reverse-coding variable (clonevar, gen, replace, recode, and labrec)June 3, 2023In "Stata" [Stata] Data cleaning 8: List up specific types of variables and drop all missing variables (findname command)June 13, 2023In "Stata" June 2, 2023Next...
史上最全的 Stata 外部命令一览,可以在线查看帮助文件。 Source:Archive of user-written Stata packages 导言 这里汇集了截至 2015年1月1日 为止的所有 Stata 外部命令。可以在线查看每个外部命令的帮助文件。 对于感兴趣的命令,可以使用findit在 Stata 命令窗口中搜索后下载,亦可直接使用ssc install命令直接下载。
Contains data from green_patents2.dta Observations: 121,848 Variables: 8 9 Apr 2024 08:34 --- Variable Storage Display Value name type format label Variable label --- patent_num long %10.0g 专利编号 filing_date long %10.0g 归档日期 appyear int...
strdate replaces a list of string date variables with a list of Stata numeric date variables having the same names, the same positions in the data set order, and the same variable labels (if present). The conversion is carried out using the Stata date() function. strdate is used when ...