But householdno is unique in the master dataset.... When I: use "$household", clear duplicates list householdno I get this: Duplicates in terms of householdno (0 observations are duplicates) Any ideas about what I am doing wrong here? The error message is certainly disconcerting. Thanks, Jeff * * For searches and help ...
But householdno is unique in the master dataset... When I: use "$household", clear duplicates list householdno I get this: Duplicates in terms of householdno (0 observations are duplicates) This is entirely consistent with what you have shown us above -- in those calls to -merge-, $hou...
--If Greater than 1 then "Same Amount in the Same Order# New = COUNTROWS( FILTER(Table1, Table1[orders]=EARLIER(Table1[orders]) && EARLIER(Table1[Amount])=Table1[Amount])) --using this to identify all duplicates Duplicates = IF ( CALCULATE ( COUNTROWS ( Table1), ALLEXCEPT ( ...
可以使用Stata的命令来查找和删除重复值,例如: stata duplicates list 证券代码 duplicates drop 证券代码, force 更改合并类型: 如果主数据集中的证券代码确实不是唯一的,但合并是合理的(例如,多个观察值代表同一证券的不同时间点或属性),则应该选择适当的合并类型,如m:1或m合并。 在Stata中,可以使用merge命令并...
12 Finally, all patient duplicates were removed to arrive at the final cohort for our study analysis. Chart review Manual chart review was performed for all patients identified by the resultant query code. Chart review was conducted by three independent reviewers. Each chart was evaluated for ...
--If Greater than 1 then "Same Amount in the Same Order# New = COUNTROWS( FILTER(Table1, Table1[orders]=EARLIER(Table1[orders]) && EARLIER(Table1[Amount])=Table1[Amount])) --using this to identify all duplicates Duplicates = IF ( CALCULATE ( COUNTROWS ( Table1), ALLEXCEPT ( ...
To <statalist@hsphsun2.harvard.edu> Subject st: RE: AW: how to identify unique id variables within groups? Date Wed, 20 May 2009 12:46:34 +0100This is not a good method in general. For example, it wouldn't work with string variables. Apart from -duplicates-, there are plenty more...
--If Greater than 1 then "Same Amount in the Same Order# New = COUNTROWS( FILTER(Table1, Table1[orders]=EARLIER(Table1[orders]) && EARLIER(Table1[Amount])=Table1[Amount])) --using this to identify all duplicates Duplicates = IF ( CALCULATE ( COUNTROWS ( Table1)...
datafile, syntax like -isid- or -duplicates- is able to do the work. But none ofthem works when combining with -by-. Is there anyapproach to check the unique value within groups? * * For searchesand help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/...
--If Greater than 1 then "Same Amount in the Same Order# New = COUNTROWS( FILTER(Table1, Table1[orders]=EARLIER(Table1[orders]) && EARLIER(Table1[Amount])=Table1[Amount])) --using this to identify all duplicates Duplicates = IF ( CALCULATE ( COUNTROWS ( Table1), ALLEXCEPT...