2016-07-13 · Stata for Students: Descriptive Statistics. This article is part of the Stata for Students series. If you are new to Stata we strongly recommend reading all the articles in the Stata Basics section. Descriptive statistics give you a basic understanding one or more variables and how they relate to each other. Topics Covered in this Section

Den här bloggen handlar framförallt om SPSS, men här kommer ett litet inlägg som rör statistikprogrammet STATA. När man gör regressionsanalyser med 

Den här terminen skiljer sig mycket från de andra  Tag: lyz. Academic writing software. Combine text, graphs & statistical analysis Example: I usually export regression tables from Stata in file format .tex, and  Thus, if values of a variable are 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, and 5, then in one sense of “unique”, there are five distinct or unique values—namely, 1, 2, 3, 4, and 5—whereas in another sense there is just one unique value—namely, 1, the only value that occurs precisely once. The variable hhid has 60 unique values and if I understand the data correctly, this means there are 100 observations from 60 households. Last edited by Friedrich Huebler ; 12 Sep 2017, 19:39 .

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The Stata command isid idvar , where idvar is the ID variable, tests for both the typically ensures that no observation has two distinct ID variable values. 13 Abr 2007 Cuando se usa el comando “use archivo”, Stata (i) verifica si el archivo Single- user Stata for Windows perpetual license: unique values: 74. Stata's previous screens. Stata 10 and older. Stata 11 Using _n, you can create a unique identifier for each case in your data, type. Check the results in the  [PDF] duplicates, stata.com duplicates — Report, tag, or drop duplicate observations. Title stata.com isid — Check for unique identifiers DescriptionQuick  Tag: stata företag.

Thus unique observations are tagged with value 0, and all duplicate observations are tagged with values greater than 0. For checking double data entry, in which you expect just one surplus copy for each individual record, you can generate a tag variable and then look at observations with tag not equal to 1 because both unique observations

tabulate(#) specifies the number of unique values of the variables to use to determine whether a variable is 21 Aug 2015 If we have converted FUNDA to Stata format, the uniqueness of GVKEY- DATADATE reveals that 99.8% of GVKEY-DATADATE pairs in FUNDQ are unique as of December 5, 2107. duplicates tag gvkey datadate, ge(dup). 2013年10月18日 stata SPSS Number of unique values of num is 9 这个，还可以用： duplicates tag A,gen(tag) 生成的tag就是重复值的个数，若显示为0意思  Stata is a good tool for cleaning and manipulating data, regardless of the first line of command creates a variable (meanbmi) which takes on a unique value for   Stata Fuzzy match command * This command checks if two strings match up. Use this tag for all fuzzy concepts, such as fuzzy sets, fuzzy clustering, fuzzy Determining the number of distinct values a categorical variable has is crit Stata tips.

the unique values of the variable in question, even though such distinct values could all be repeated in the data—and, in particular, 2, 3, and 4 are indeed repeated. One logic behind that terminology is that if you remove all the duplicates from these data, then you are left with four distinct values, each of which occurs once. The

This indicates that all observations are part of both files. If there were observations.

This FAQ is likely only of interest to users of previous versions of Stata. Case 1: Identifying duplicates based on a subset of variables.
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Academic writing software. Combine text, graphs & statistical analysis Example: I usually export regression tables from Stata in file format .tex, and  Thus, if values of a variable are 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, and 5, then in one sense of “unique”, there are five distinct or unique values—namely, 1, 2, 3, 4, and 5—whereas in another sense there is just one unique value—namely, 1, the only value that occurs precisely once. The variable hhid has 60 unique values and if I understand the data correctly, this means there are 100 observations from 60 households. Last edited by Friedrich Huebler ; 12 Sep 2017, 19:39 .

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search distinct in Stata brings up clickable links.