# Duplicates Stata

merge 1:m or. StataCorp develops, distributes, and supports Stata statistical software. 1 So that you do not lose your work, enter the command in the do-file, and then execute it. files b) Often when converting a table, multiple lines in the same cells are separated by line-breaks (indicated by ¶) which means that when copied into excel they will appear as multiple rows. Stata can calculate variance estimates correctly based on the total observations per the sample design. * The sample data mimics data from CPS. You have successfully converted 3 csv files in one Stata file ***** Warning - output. Stata really shines in lag and change. If False, missing values are replaced with nan. Retired Status Vehicle Registration. The following articles are merged in Scholar. Rather, %21x is for use with Stata's display command for those wanting to better understand the accuracy of the calculations they make. The duplicates command (see [D] duplicates) gives various methods for identify-ing and dealing with duplicates in data. This office strives to provide you the best possible services and resources to do business in Texas. Stata Code Snippets: Finding Duplicates in Observations Here are some code Stata code snippets for checking duplicates in your panel data. exe, Stata-64. Duplicates in Panel Data. If there are duplicate rows, only the first row is preserved. Most of the time when I open Stata, I'm dealing with this file. The duplicates commands provide a way to report on, give examples of, list, browse, tag, or drop duplicate observations. The function distinct() [dplyr package] can be used to keep only unique/distinct rows from a data frame. You can check for duplicate observations in Stata in the following ways: The isid command can detect duplicate observations:. com Hua Peng StataCorp College Station, TX [email protected] duplicate synonyms, duplicate pronunciation, duplicate translation, English dictionary definition of duplicate. Define duplicate. help use - learn more about a command clear - unload the current data from memory. These can range from simple data manipulation commands to completely new statistical models. •STATA is powerful command driven package for statistical analyses, data management and graphics •STATA provides commands to conduct statistical tests, and econometric analysis including panel data analysis (cross-sectional time-series, longitudinal, repeated- measures), cross-sectional data, time-series, survival-time data, cohort analysis, etc •. If a license needs to be mailed out of state or overseas, you will need to complete the Application for a Renewal or Duplicate License for Alabama Drivers Temporarily Out of State. In Stata, several programs are available to detect the duplicates and can also optionally drop the duplicates. Easy Duplicate Finder™ is a powerful app that uses smart technology to identify all kinds of duplicate files. For older Stata versions you need to use "xi:" along with "i. removing duplicates in spss. Wiley Statistics and Math. The names of program executable files are StataSE. Stata: Using generate to create new variables 06 Jul 2011 Tags: Stata and Tutorial Generating New Variables. Enter "Find duplicates" in the search box and you'll see the article "How to find duplicates in Excel: identify, highlight count, filter, and more". Remove duplicate rows in a data frame. The 'eventcount' variable has been merged on to each stock observation, and tells Stata how many copies of that observation are needed. On your machine, that dataset will be in whatever directory or folder the sysdir command tells you pertains to STATA. , remove duplicates, ensure valid values, etc. 1 Data –les Variables within a data set are typically organized in columns. ieduplicates is a Stata command that identifies duplicates in ID variables and exports them to an Excel file that research teams can use to correct the duplicates. Most just take what they want and run. You want to find and/or remove duplicate entries from a vector or data frame. Helping Australian, Indonesian and New Zealand researchers achieve better data management, statistics, analytics and reproducibility with Stata. There are two methods available for this task. for three variables (out of many variables that i have in my data set), i only want to keep every unique combination of these three variables. the original and the copy), which can be identified by the new variable dupindicator that is defined as 1 for the duplicate, and 0 for the original variables. Since 1966, researchers at the Carolina Population Center have pioneered data collection and research techniques that move population science forward by emphasizing life course approaches, longitudinal surveys, the integration of biological measurement into social surveys, and attention to context and environment. The General Social Survey is a great set of social indicators to practice analysis techniques while looking at topics of interest for scientists. Task 3c: How to Generate Means Using Stata. This Stata FAQ shows how to check if a dataset has duplicate observations. Description Usage Arguments Value Examples. Stata peut générer des variables aléatoires de distributions autre que la distribution uniforme. The functions mod() and round() are also covered at the end for your reference. Note that "mstatus" is the name of the. 1 So that you do not lose your work, enter the command in the do-file, and then execute it. Unbalanced Panel Data Models Unbalanced Panels with Stata Unbalanced Panels with Stata 1/2 In the case of randomly missing data, most Stata commands can be applied to unbalanced panels without causing inconsistency of the estimators. Get to know Stata's collapse command-it's your new friend. Someone asked me today how to. gen random_number = _n. com is brought to you by Metrika Consulting AB, Stata's exclusive software distributor for the Nordic and Baltic countries. They have ended up in several different files and I want to just get everything put in its one place and rid all the duplicates. Commands can also be abbreviated; the documentation and online help underlines the shortest legal abbreviation of each command and we will do the same here. patient ID, date of visit, program name)? The rest of the variables, say, v1 - v20, however, may be the same. Identically copied from. This office strives to provide you the best possible services and resources to do business in Texas. maptile A stata program that makes mapping easy. course\stata\TOTEXP. What command to use in Stata to check if value in one variable is equal to any value in another variable? Hi, Do any of you know the command for examining the value in one variable is equal to any. duplicate synonyms, duplicate pronunciation, duplicate translation, English dictionary definition of duplicate. gduplicates. Write a program to sort a map by value. Here is what the data looks like: id time var3 1 10 2. It will take you about 10 minutes to read this article and in the next 5 minutes (or even faster if you choose the 2nd solution described in the article) you will easily compare two Excel columns for duplicates and remove or highlight the found dupes. Abstract: expandby replaces one observation in each group of the current dataset with # copies of the observation. Stata is the only statistical package with integrated versioning. 【Stata 连享会(公众号：StataChina)】由中山大学连玉君老师团队创办，旨在定期与大家分享 Stata 应用的各种经验和技巧。 公众号推文同步发布于 CSDN-Stata连享会 、简书-Stata连享会 和 知乎-连玉君Stata专栏。可以在上述网站中搜索关键词Stata或Stata连享会后关注我们。. StataCorp develops, distributes, and supports Stata statistical software. There are numerous methods for exporting R objects into other formats. duplicates report finds all duplicate values in each variable Stata has 6 data types, and data can also be missing: byte true/false int long float double numbers. STATA is telling you that the observations in B. Identifying Duplicate Transactions. Generate a list of random numbers within a range, with or without duplicates. Abstract: dups provides information about unique and duplicate observations in the dataset and, optionally, drops all duplicate observations. You can apply for a replacement TN driver's license or ID in person or online. If you use the link in the "Share this Calculation" box a new randomized set will be generated every time the link is visited. marked as duplicate by cardinal, gung ♦, Peter Flom ♦, StasK, russellpierce Feb 19 '13 at 1:40 This question was marked as an exact duplicate of an existing question. Welcome to the official site of the Virginia Department of Motor Vehicles, with quick access to driver and vehicle online transactions and information. They have ended up in several different files and I want to just get everything put in its one place and rid all the duplicates. Ways to count the number of unique values in a variable Posted on 1 October 2010 by Mitch Abdon There are at least 3 convenient ways to count the number of distinct values contained in a variable: -tab-, -inspect-, and -codebook-. Non-exact duplicates - Two or more observations in a data set that have all key variable values equal, but have differences in non-key variable values. To achieve this, the Inquiry windows transfer data into a single temporary table and use this table for their display. It's an efficient version of the R base function unique(). Stata by and egen commands. Coefficient of variation from duplicate measurements Description The calculation of Coefficient of Variation (CV) from duplicate measurements made on a number of different subjects or materials is used to determine the reproducibility of the measurements as an alternative to making a large number of observations on a single subject or material. Wiley Statistics and Math. Stata can reshape data from wide to long format and vice-versa using the reshape command. edu at 8:29pm 15 September, 2014. Mgmt 469 Programming in Stata: Creating do-files An important feature of any good research project is that the results should be reproducible. Easy Duplicate Finder™ is a powerful app that uses smart technology to identify all kinds of duplicate files. Many Stata commands can be executed on a group-by-group basis. stata free download - Stata, Learning Stata, StataWe, and many more programs. One of the programs is called dups. Starting with Stata 8, the duplicates command provides a way to report on, give examples of, list, browse, tag, or drop duplicate observations. Maximum Likelihood Estimation in Stata Example: binomial probit You can verify that this routine duplicates the results of applying probit to the same model. One way to make it easy to reproduce your results is to write a set of programs that contain all of your Stata commands. Combining Datasets in Stata Thomas Elliott January 31, 2013 Often, you will nd yourself with two or more datasets, or data les, that you wish to combine into one data le. 0 I want to identify the observations that are duplicate on the time variable only, i. tabulate person There are three persons, each appearing 365 times (which is as expected since the dataset contains each person's daily caloric intake). Task 3c: How to Generate Means Using Stata. scheme or a. However, some of these observations are duplicate. The software is capable to manage unique data sets (survival/duration data, panel/longitudinal etc. • To get Stata to execute a single line or successive lines of code from a do-file, highlight the line/s and click the "Do" button in the menu bar of the do-file. Four techniques to identify dupli-cate values are detailed. The most popular version of this product among our users is 1. by and bysort. This paper describes techniques for identifying duplicate values across observations, including PROC SORT, PROC FREQ, PROC SQL, and FIRST. Non-exact duplicates – Two or more observations in a data set that have all key variable values equal, but have differences in non-key variable values. This Stata FAQ shows how to check if a dataset has duplicate observations. 很多朋友发现使用了duplicates后，会出现各种提示告诉你剔除不了，原因有几个方面，一是. Stata provides a couple ways to combine datasets. For good measure, I'll also describe a worksheet function-based approach that works in any version of Excel. Welcome to the official site of the Virginia Department of Motor Vehicles, with quick access to driver and vehicle online transactions and information. We use variables of the census. Examples of the types of papers include 1) expository papers that link the use of Stata commands or programs to associated principles, such as those. Using weights in Stata Yannick Dupraz 1 Frequency weights: sample with many duplicate Stata uses a Sandwich (White) estimator to compute. This feature is not available right now. missings report, minimum(1000) Checking missings in all variables: 15082 observations with missing values union 9296 wks_ue 5704 Although not shown here, missings report also supports the display of percentages. With your dataset open in the Data Editor Window, select Data>Indentify Duplicate Cases. Many people access the material from this web site daily. The 2 tells Stata that there should be two copies of the same observation (i. dta", clear // Creating unique household variable and checking for duplicates gen hhnum_u = string(id_clus) + string(id_hh) label var hhnum_u "Unique hh id" duplicates report hhnum_u // Keeping only select variables keep hhnum_u g09a g11 g12 g13 g14cd cd "C. with the option , clear being required as a reminder that the resulting data set will replace the original data set in the memory; in other words, the original data set will be lost unless it is saved prior to the transposition. Stata for Researchers: Combining Data Sets This is part eight of the Stata for Researchers series. DTA" Note, type: duplicates report hid /* for a report on duplicated observations */ duplicates examples hid /* lists one example for each group of duplicated observations */ duplicates drop hid, force /* drops all but the first occurrence of each group of duplicated observations. It looks like you tried to drop duplicates in the CRSP data, but the code you posted does not check for duplicates in the COMPUSTAT data. Indexes, including time indexes are ignored. dta has 3 duplicate observations: you might have entered a >. There are at least four ways to get at this. The software is capable to manage unique data sets (survival/duration data, panel/longitudinal etc. WDI uses double periods; Excel uses empty cells and Stata uses single periods. ADDITIONAL INFO How to apply for a job, requirements, FAQs and other employment details. ” (type help xi for more options/details). Through-out, bold type will refer to STATA commands, while -le names, variables names, etc. Wiley Statistics and Math. The General Social Survey is a great set of social indicators to practice analysis techniques while looking at topics of interest for scientists. This is a faster alternative to duplicates. We were the first international distributor of Stata software in the world. However, once I run the code above what I get is there duplicates within "permno gvkey date" and "permno date". This is where your dataset can get VERY BIG, as we are duplicating the observations to however many counts of event we have per company. This user-written command is nice because it creates a variable. If you will be out of IL for longer than 90 days, you can request that an application for a non-photo duplicate driver's license be sent to your current address. Obtain your vehicle registration, title, and license. Data Wrangling in Stata: Combining Data Sets. Given a string S, the task is to remove all the duplicates in the given string. However, since the time differences are >= 1 hour in all rows, R gives the results in hours. duplicates drop stata | stata drop duplicates | drop duplicates in stata | stata drop duplicates in terms of a variable | duplicate drop stata | how to drop dup. If no varlist is given, then all. marked as duplicate by cardinal, gung ♦, Peter Flom ♦, StasK, russellpierce Feb 19 '13 at 1:40 This question was marked as an exact duplicate of an existing question. How can you merge two files in SPSS when the cases are not perfectly the same? the primary key should be the only duplicate variable name in the dataset, as each wave file should contain. the last observation in the dataset above. The latest Tweets from Stata (@Stata). Explore all the online services offered by the New Mexico Department of Motor Vehicles. The value of year varies from 1 to 5. Drukker StataCorp College Station, TX [email protected] Basics of STATA This handout is intended as an introduction to STATA. Exact duplicates - Two or more observations in a data set that have all variable values equal. The software is capable to manage unique data sets (survival/duration data, panel/longitudinal etc. Thus, in the example just given, 1, 2, 3, and 4 would be reported by many as 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. exe, Stata-64. The functions mod() and round() are also covered at the end for your reference. Sunstate Title Service has been in business since November 1973 and during that time we have earned the respect and admiration of all the companies we have worked with. dta for data files in Stata and. -foreach-: loop over items. ieduplicates is a Stata command that identifies duplicates in ID variables and exports them to an Excel file that research teams can use to correct the duplicates. duplicates report finds all duplicate values in each variable Stata has 6 data types, and data can also be missing: byte true/false int long float double numbers. This site fully supports Internet Explorer 6. Delete duplicate row but keep the one with highest number in the cell next to. We constantly add new features; we have even fundamentally changed language elements. STATA is avail-able on the PCs in the computer lab as well as on the Unix system. Ways to count the number of unique values in a variable Posted on 1 October 2010 by Mitch Abdon There are at least 3 convenient ways to count the number of distinct values contained in a variable: -tab-, -inspect-, and -codebook-. Define duplicates. STEP 2 • Load the following dataset into Stata using the use command. Excel users often find themselves stuck on a treadmill of repetitive tasks. Warner Automated Auditors, LLC When Sarbanes-Oxley was passed in 2002, many companies were forced to take an in-. It looks like you tried to drop duplicates in the CRSP data, but the code you posted does not check for duplicates in the COMPUSTAT data. View source: R/ladder. To merge two data sets in Stata, first sort each data set on the key variables upon which the merging will be based. •Quick tour of Stata 14 •Changing the working directory and creating a log •Import data from Microsoft Excel •Describe and summarize data •Convert string variables to numeric •Identify and replace strange values •Convert -99 to missing values •Create value labels •Creating new variables •Working with dates. dta has 3 duplicate observations: you might have entered a >. can someone help me with this. name, and the list exists in Stata but it is not assigned to the variable until we specify a label value statement. , to get beginning-of-quarter total assets or calculate seasonal changes in sales. Boston College Department of Economics. Stata is the only statistical package with integrated versioning. Case 1: Identifying duplicates based on a subset of variables. merge m:1 ; see Merge two data sets in the many-to-one relationship in Stata. One way to deal with these is to simply drop both observations when there is a duplicate, but rather than doing this we will look more closely at the matter and see if there is a reasonable approach to. with the option , clear being required as a reminder that the resulting data set will replace the original data set in the memory; in other words, the original data set will be lost unless it is saved prior to the transposition. Merging two datasets require that both have at least one variable in common (either string or numeric). Stata has four flavors: Small, Intercooled (Standard), Special Edition (SE), SE for multiprocessor (MP). Stata features the ability to create user-written commands. If I repeat every sample observation in a linear regression model and rerun the regression how would the result be affected? in Stata, the expand x function. The product will soon be reviewed by our informers. Stata Code Snippets: Finding Duplicates in Observations Here are some code Stata code snippets for checking duplicates in your panel data. Find duplicate files on Mac manually. The duplicates command can list and flag duplicate observations. Tech For Development -T4D would like to invite you to a high impact Training Course in Data Collection,Management,Analysis and Mapping Using ODK,Stata And QGIS. Enter "Find duplicates" in the search box and you'll see the article "How to find duplicates in Excel: identify, highlight count, filter, and more". Whatr are possibilities to check for duplicates in a dataset where the expectation is that the duplicate entries for the same, say, patient will have differences in data entry for the key identifying variables (i. To remove duplicate values, click Data > Data Tools > Remove Duplicates. For instance, if I have the same observation four times, I want to drop three of them. Besides, it also support different operating systems such as Windows, Mac OS, and Linux. The following articles are merged in Scholar. Statistics Command List for Summer 2016 Workshop. Hi, I want to do a sum of values without duplicates. For a list of topics covered by this series, see the Introduction. , transforming the unit of analysis in a dataset). (I have to figure out how to do this because my panel dataset have duplicates, and therefore I cannot do a tsset on the data) The command to use is duplicates. It "reduces" the data Stata keeps in memory through aggregation. Hi listers, I am looking to find duplicate observations on a certain variable 'time'. The functions mod() and round() are also covered at the end for your reference. STATA COMMANDS USEFUL FOR DATA CLEANING IN SHARE Dimitris Christelis SHARE and CSEF, University of Naples Federico II SHARE Berlin Meeting, June 8, 2009. 04861759 Stata commands are case-sensitive, display is not the same as Display and the latter will not work. The latest Tweets from Stata (@Stata). Someone asked me today how to. varlist is an optional variable list that determines which observations are duplicates (observations must match exactly on all variables in the list to be duplicates). Mgmt 469 Helpful Stata Commands This contains virtually all the Stata commands you will ever need. To do this, we will discuss a number of topics, ranging from the relatively simple (e. gen random_number = _n. The Delta State University National Alumni Association announces the 2019 alumni award recipients who will be honored during the 87th Delta State University Homecoming weekend. Following that example, is an example of calculating the geometric means. They are particularly useful when using _n and _N Using _n Simple Usage _n is a system variable. Type help merge for details. Stata is a general-purpose system. There are numerous methods for exporting R objects into other formats. Duplicates do interfere with reproducibility, however, and there is an easy way around that problem. The General Social Survey is a great set of social indicators to practice analysis techniques while looking at topics of interest for scientists. In the example shown the formula in cell C4 is:. merge 1:m or. The user can then combine and reshape data sets, manage variables, and collect statistics across groups or duplicates. duplicates report finds all duplicate values in each variable Stata has 6 data types, and data can also be missing: byte true/false int long float double numbers. To view your system's duplicates, please hop into chat or send an email to [email protected] Collapse allows you to convert your current data set to a much smaller data set of means, medians, maximums, minimums, count or percentiles (your choice of which percentile). duplicate synonyms, duplicate pronunciation, duplicate translation, English dictionary definition of duplicate. Find and replace null value indicators (e. To apply online, visit Tennessee's Order a Duplicate License Online page and provide the following: Your TN driver's license or ID card number. Under many circumstances, that's fine for either integers or decimal numeric objects. If you are familiar with these aspects of Stata usage, you should feel free to skim this material, perhaps returning to it to refresh your understanding of Stata usage. " to find both. Proof of Identity and Residency. Sample 1: Delete duplicate items in a single list. of data management and several tools available in Stata to ensure that the appropriate transformations are accomplished accurately and eﬃciently. Duplicates; Reshape; Append; Merge Statistics. If it is unclear why we kept _merge==2, check out the Survey Analysis in Stata video at populationsurveyanalysis. For example the following Stata code will execute the summarize command for each unique value of marital (married, widowed, etc. Retired Status Vehicle Registration. Identically copied from. The primary method for creating new variables in Stata is the generate command. Indexes, including time indexes are ignored. Most of the time when I open Stata, I'm dealing with this file. This means that for duplicated values. The system will walk you through the ordering process. %21x is a Stata display format, just as are %f, %g, %9. Below is a sample source code demonstrating on how to remove duplicates and get distinct records in List using LINQ and C#? How to Remove Duplicates and Get Distinct records from List using LINQ?. duplicates report temp //check there are no duplicates. -generate-: create variables. DISASTER RELIEF RESOURCES. , 73,704 / 2) duplicates in total. dta are not unique (so for example, observation 1 for Code_ID may be aab and observation 26 for Code_ID may also be aab). STATA COMMANDS USEFUL FOR DATA CLEANING IN SHARE Dimitris Christelis SHARE and CSEF, University of Naples Federico II SHARE Berlin Meeting, June 8, 2009. These can range from simple data manipulation commands to completely new statistical models. Frequently it is useful, for instance, to compare infant mortality in countries with low, average and high urbanisation; as urbanisation is a continuous variable we need to break it into a categorical variable with, as an example, three groups. How to Replace a Lost or Stolen TN Driver's License. Instead of 5 poverty variables, we have 1, whose value can differ across. È il primo di cinque film in cui Bhatt ha collaborato con la casa di produzione Dharma Productions. Sunstate Title Service has been in business since November 1973 and during that time we have earned the respect and admiration of all the companies we have worked with. exe, Stata-64. The Delta State University National Alumni Association announces the 2019 alumni award recipients who will be honored during the 87th Delta State University Homecoming weekend. The function distinct() [dplyr package] can be used to keep only unique/distinct rows from a data frame. Stata: Create id by group Sunday, April 22, 2012 When doing your data analysis, sometimes you will encounter the following situation: in your dataset, everyone has an unique id. For example the following Stata code will execute the summarize command for each unique value of marital (married, widowed, etc. c 2005 StataCorp LP dm0012 155. files b) Often when converting a table, multiple lines in the same cells are separated by line-breaks (indicated by ¶) which means that when copied into excel they will appear as multiple rows. This means that for duplicated values. All analyses can be reproduced and documented for publication and review. If you will be out of IL for longer than 90 days, you can request that an application for a non-photo duplicate driver's license be sent to your current address. display 2+2 4. Ifyoutypedat the Stata prompt something of the form. Rather, %21x is for use with Stata's display command for those wanting to better understand the accuracy of the calculations they make. -generate-: create variables. dta just happens to contain duplicates you can drop these. Stata & missing or duplicate data Posted on 13/05/2016 by 1infospec When you work with large datasets or big data it may happen that after working with it for some time you need to take a good look at what has happened to the data. Thus, in the example just given, 1, 2, 3, and 4 would be reported by many as 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. Non-exact duplicates – Two or more observations in a data set that have all key variable values equal, but have differences in non-key variable values. If you want to identify only cases that are a 100% match in all respects, select all of the variables. Collapse allows you to convert your current data set to a much smaller data set of means, medians, maximums, minimums, count or percentiles (your choice of which percentile). SPSS has a function in the Base package to identify and delete duplicate cases, in which you can set many custom options depending on what you want to identify as a "duplicate". News and information about the programs and services of the Illinois Secretary of State office including driver licenses and vehicle registrations, promoting organ donation awareness, overseeing the Illinois State Library and administering the state's literacy efforts. scheme or a. duplicates list lists all duplicated. If you use the link in the "Share this Calculation" box a new randomized set will be generated every time the link is visited. 1 Data –les Variables within a data set are typically organized in columns. Survey Design and Analysis Services are the official distributors of Stata Software in Australia and New Zealand. csv" in Stata's results window will launch Excel and display the file: Depending on whether the plain option is specified or not, esttab uses two different variants of the CSV format. Explore all the online services offered by the New Mexico Department of Motor Vehicles. A dataset could be reduced to singleton obser-. Duplicates do interfere with reproducibility, however, and there is an easy way around that problem. To remove duplicate values, click Data > Data Tools > Remove Duplicates. display 2+2 4. cd "C:\Users\wb372587\Documents\Stata Course\Lecture 3\rawdata" use "Section G Housing. Sample weights have now come to be regarded as an integral part of the analysis of household survey data in developing countries, as in the rest of the world. The stem function seems to permanently reorder the data so that they are. The appropriate Stata command is xpose. Sample 1: Delete duplicate items in a single list. Ways to count the number of unique values in a variable Posted on 1 October 2010 by Mitch Abdon There are at least 3 convenient ways to count the number of distinct values contained in a variable: -tab-, -inspect-, and -codebook-. name, and the list exists in Stata but it is not assigned to the variable until we specify a label value statement. merge 1:m or. Automated Table generation in Stata and integration into LaTeX (1) Posted on 23/03/2012 by Jörg Weber I use estout to generate tables of summary statistics and regression results that can be easily imported into LaTeX. Question: Tag: duplicates,stata Let's say I have the following data: id disease 1 0 1 1 1 0 2 0 2 1 3 0 4 0 4 0 I would like to remove the duplicate observations in Stata. Likewise, Chapter 3 is. STATA is avail-able on the PCs in the computer lab as well as on the Unix system. Key Differences Between SPSS vs Stata. Here is what the data looks like: id time var3 1 10 2. duplicates drop stata | stata drop duplicates | drop duplicates in stata | stata drop duplicates in terms of a variable | duplicate drop stata | how to drop dup. 很多朋友发现使用了duplicates后，会出现各种提示告诉你剔除不了，原因有几个方面，一是. Stata by and egen commands. Helping Australian, Indonesian and New Zealand researchers achieve better data management, statistics, analytics and reproducibility with Stata. This is where your dataset can get VERY BIG, as we are duplicating the observations to however many counts of event we have per company. However with 603 observations and 15 variables you will probably get plenty more observations than the 3 you typed in twice (maybe not, depends on the distribution of the variables). And when it comes to data, there are tons of things that can go wrong - be it the structure, placement, formatting, extra spaces, and so on. Regards Andy. È il primo di cinque film in cui Bhatt ha collaborato con la casa di produzione Dharma Productions.