在Stata中,drop if missing命令用于删除包含缺漏值(missing values)的观测记录。下面是对该命令的详细解释: 基本功能: drop if missing命令用于删除数据集中包含缺漏值的观测记录。这可以帮助清理数据,确保在进行统计分析时不会因为缺漏值而产生偏差或错误。 具体语法: stata drop if missing(varlist) 其中,varlis...
clear drop m* //删除以m开头的所有变量，即make mpg ds drop _all //删除所有的变量和观测值 2、删除观测值 （1）删除含有缺失值的⾏。sysuse auto,clear count drop if rep78==. //删除rep78的缺失值对应的⾏ count 可以看rep78⼀共有5个缺失值，包含该5个缺失值的⾏被我们删除了。
gsort rep78 -price//按照汽车修理记录升序排列,然后在相同的修理记录中,按照价格降序排列。 bysort rep78: drop if _n != _N//在每一组rep78相同的组中,只保留最后一行,即价格最低的行。 3、删除图片 首先我们先绘制两张图,并保存在E:\stataclub路径下,命名为graph1、graph2。 clear all cap mkdir E...
and so on. In Stata, the command uses the syntax ‘sort varlist’, where varlist is a list of variables. Sort is useful when one wants to examine the data within an individual variable, or to check if their variables are already in order. ...
if q3b==1 (11878 missing values generated) . gen Born=1 if q3b==2 (16926 missing values generated) . gen MarriedIn=1 if q3b==3 (17531 missing values generated) . gen Joined=1 if q3b==4 (17784 missing values generated) . gen OtherStatus=1 if q3b==5 (17458 missing values ...
Title duplicates — Report, tag, or drop duplicate observations stata.com Syntax Remarks and examples Menu Acknowledgments Description References Options Also see Syntax Report duplicates duplicates report varlist if in List one example for each group of duplicates duplicates examples varlist if in , ...
delimited using data_esample.csv, if e(sample)==1 Using the dumped 'data_esample', I did aggregation at user level and product level (the following codes are not stata, just to show what I did): aggregate_by(user), count rows ...
didn't clean replicas in clickhouse-keeper Author That I can't answer. I can certainly test some stuff out if you can point me in the right direction on where to look. I have an easy setup that I've been using to create/bootstrap clusters. ...
drop if rep78==.//删除rep78的缺失值对应的行 count 可以看rep78一共有5个缺失值,包含该5个缺失值的行被我们删除了。 (2)使用missings命令删除含有缺失值的行。 使用missings命令可以达到(1)中相同的效果。如果初次使用missings需安装。可使用net installdm0085_1命令安装missings的包dm0085_1,也可以通过...
values (optionally any values) missing On Mon, Jan 30, 2012 at 8:21 PM, shihying yao <berkeley.yao@gmail.com> wrote: > I am wondering if there is a quick way to identify and drop subjects > with missing values on all variables (including string and numeric > variables) in a ...