/* Missing values */ clear set obs 10 gen index = _n gen group = "male" if index<=5 replace group = "" if index>5 set obs 15 count if missing(index) replace index = _n if missing(index) count if missing(group) replace group = "female" if missing(group) /* format %g */ ...
Sorted by: foreign 显示数据集的行数:count 74 显示数据类型为整数(int)的变量:ds, has(type int) ds, has(type int) 得到: price rep78 weight turn mpg trunk length displacement 显示在变量名或标签中带有关键词的:lookfor lookfor "g" 得到: Variable Storage Display Value name type format label V...
Now our count of distinct strings could be . by id S_, sort: gen nvals = _n == 1 . by id: replace nvals = sum(nvals) . by id: replace nvals = nvals[_N] If missing values indicated by"."are of no interest, we should exclude them. (In another problem, what is deemed ...
S458921 COUNTVALUES: Stata module to list counts of integer values across variables by Nicholas J. Cox S458920 INLIST2: Stata module to create an inlist() dummy, without the inlist() limitations by Matteo Pinna S458919 SONGBL: Stata module to search and share Stata resources and blogs by...
See[MI]Glossary for a definition of terms.To import data that already have imputations for the missing values(do not mi set the data)mi import import mi data mi export export mi data to non-Stata application Once data are mi set or mi import ed mi query query whether and how mi ...
S458921 COUNTVALUES: Stata module to list counts of integer values across variables byNicholas J. Cox S458920 INLIST2: Stata module to create an inlist() dummy, without the inlist() limitations byMatteo Pinna S458919 SONGBL: Stata module to search and share Stata resources and blogs ...
count if n==1 二十一、stata中的主成分分析法 1、首先,需要对变量进行哪些检验?KMO?还有什么?KMO检验结果符合什么条件才能继续进行主成分分析? 答:首先使用KMO检验和SMC检验。 KMO的判断为,Using the Kaiser (1974) characterization of KMO values, 0.00 to 0.49 unacceptable 0.50 to 0.59 miserable 0.60 to ...
by() 分类做统计描述 ,只允许一个变量 statistics(statsnames) 报告指定的统计量,包括range, mean, sd, variance, semean, sum, count, n, max, min, median, p#, iqr columns(variables) 缺省设置,变量显示在表格的列 columns(statistics) 变量显示在表格的行 missing 报告缺失 format(%fmt) 设定显示格式...
by fips year: egen id_sum = count(newid) //通过fips year来分 如果两个都相同就算一次 edit fips year newid so2 by fips year: egen so2_fips = sum(so2) //missing values //得到地区层面的数据 用于变量的构造 通过微观数据做加总数据又保留微观数据本身 // use "nei_sample.dta",clear help ...
stata.com codebook —Describe data contents Syntax Menu Description Options Remarks and examples Stored results References Also see Syntax codebook varlist if in ,options options Description Options all print complete report without missing values header print dataset name and last saved date ...