首先,我们扩展使用数据框discharge2,并在使用数据框中创建要合并到主数据框的变量date。为了直观展示扩展后的使用数据框,我们在列出了patientid(初始标识变量)、age(discharge2已有的一个变量) 和date的前 15 行数据。 . clear . frame reset . cap frame create discharge2 . frame discharge2{ . webuse dischar...
Watch Create a date variable from a date stored as a string. Long string support Up to 2 billion character long strings Coalescing of duplicate values to save memory Binary 'strings' (BLOBs) Import and export entire files into long strings/BLOBs Unicode (UTF-8) strings Stored results ...
Mac FAQ: How do I install Stata from a terminal? (Added 25 January 2017) Data management: How do I create dummy variables? (Updated 14 July 2016) Data management: How do I convert my ICD-9 codes from a string type to a numeric type? (Added 24 February 2016) Data management: ...
How can I turn a string variable containing dates into a date variable Stata can recognize? How can I extract a portion of a string variable using regular expressions? Error messages How can I handle the matsize too small error? How can I handle the No Room to Add Observations error? How...
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。
Chuck Huber, How to createchoropleth mapsusing the COVID-19 data from Johns Hopkins University, 7 April 2020,-Link- 编者按:这篇推文在编译上述三篇 Stata Blogs 的基础上,进一步做了针对中国的数据分析和可视化处理。主要不目的不是实时呈现疫情变动 (已经有很多优秀的项目在做这件事情了),而是为了演示 St...
#Your version of R is up to date 看答案 基本上,您需要学习使用计算机。在Mac上,我下载了“划界”文件(在给该网页一个明显的虚假电子邮件地址之后),这是CSV格式: > dat1 <- read.csv('~/Downloads/F00003607-WV5_Data_ascii_delimited_v_2015_04_18/WV5_Data_ascii_v_2015_04_18.dat', header...
filepath_or_buffer: A string, path object, or file-like object representing the location of the Stata dataset file to read. convert_dates: A boolean indicating whether to convert date variables to Pandas datetime values. By default it is set to True. convert_categoricals: A boolean ...
DCREATE: Stata module to create efficient designs for discrete choice experiments 25 SYNTH: Stata module to implement Synthetic Control Methods for Comparative Case Studies 26 XTABOND2: Stata module to extend xtabond dynamic panel data estimator ...
克隆/下载 git config --global user.name userName git config --global user.email userEmail 分支1 标签0 计量经济学update 计量经济学模型命令汇总.md.6a6c1734年前 5 次提交 提交 README.md rename StataCommand.md to README.md. 4年前