Find duplicates in your data in this #StataQuickTip — produced publication-type tables and trend charts using STATA and presented result to supervising faculty. If True, the resulting axis will be labeled 0, 1, …, n - 1. That's OK, provided they are not selling on the material as their own; however if your productivity gains from the material you have used, a donation from the money you have saved would help to ensure the continued availability of this resource. 使用duplicates删除重复数据后仍存在重复数据,如图所示,使用duplicates drop time, force之后,发现处理后的数据仍然存在重复的时间。附件中是样本数据。请大家帮忙解决一下,谢谢,经管之家(原人大经济论坛). Find and drop duplicate elements. An ANOVA is a guide for determining whether or not an event was most likely due to the random chance of natural variation. Stata Intermediate. Columnist. Most just take what they want and run. I have one column that contains a lot of duplicates, call it columnX. do" * This is a sample program that eliminates duplicate cases from a datset. duplicates. How to use duplicate in a sentence. To estimate rolling window regressions in Stata, the conventional method is to use the. For example, a clinical study team member may access a patient's data to enter a date and mistakenly create a duplicate in which the new date is placed. Ashok Chelian I program in SAS and STATA quite frequently. Stata on a Mac Wednesday, May 28, 2008 very easy to remove duplicates; you can use TextWrangler to save ready-made Stata templates. com with free online thesaurus, antonyms, and definitions. El objetivo principal del blog STATA BIOS 2015 es brindar al internauta conocimientos sólidos, herramientas útiles, técnicas modernas y aplicaciones tecnológicas del paquete estadístico STATA de las cual estaremos aprendiendo junto a ustedes en el Curso STATA del Instituto BIOS (Escuela de Economía y Finanzas). Is there any quick way to show only duplicates except hiding unique values one by one?. This post demonstrates techniques to find unique and duplicate values in a data set. Do not panic about the duplicates. Identifying duplicates in Stata shows 73,704 tagged duplicate pairs which means there are 36,852 (i. Linear regression analysis using Stata Introduction. Clinical study team – A group of people responsible for conducting a research study. Duplicate definition, a copy exactly like an original. The duplicates are identical in every way. The Java programming language provides a wrapper class that "wraps" the char in a Character object for this purpose. How to use duplicate in a sentence. The values in _n==1 (line 1 of the data) are the following:. I have made these notes, as well as the dataset and do. Catalogo brochure Vintage « Eligor 1/43 ° "molto 1983/84 Buone condizioni. I'll explain. DA: 75 PA: 43 MOZ Rank: 67. Viewed 21k times 8. stata入门中文讲义. Introduction to Stata use "your_file. Randomizing and selecting a sample or sub-sample of individuals from a data-set are activities that we commonly need to perform during data analysis. Hi listers, I am looking to find duplicate observations on a certain variable 'time'. This post demonstrates techniques to find unique and duplicate values in a data set. names [R] merging and obtaining the nearest value [R] Simple question on finding duplicates [R] finding duplicates in a data frame [R] partial duplicates of dataframe rows, indexing and removal [R] how to create data. 1 Appending Data Appending data means you have two les of the same data, just with di erent cases. drop pandas. One way of sorting data in R is to determine the order that elements should be in, if you were to sort. stata几个常用技巧 - 请stata初学者看看,非常有用 duplicates report id year *报告 id 和 year 同时出现的次数 duplicates drop var,force. I am relatively new to LyX and I am trying to output regression results into TeX code, and then insert the resulting tables in a LyX document. NirSoft web site provides a unique collection of small and useful freeware utilities, all of them developed by Nir Sofer. My code is following. Re: Remove Duplicates while maintaining highest value Another possibility is the Remove Duplicates option in the DATA tab. It is one of the most common interview questions as it is commonly used in day-to-day data management activities. The mapping is not one to one because there are more states than seeds. DA: 73 PA: 60 MOZ Rank: 82 Up or. Cox of the Department of Geography at Durham University, UK , and coeditor of the Stata Journal, who in turn thanks Thomas Steichen of RJRT for ideas contributed to an earlier jointly written program (Steichen and Cox1998). keep {‘first’, ‘last’, False}, default ‘first’ Determines which duplicates (if any) to mark. • However, in Stata 11, first you will have to change your xls/xlsx file into csv format file to open it directly in the stata: • Open the Excel file > Go to the File > Select Save As > Select CSV (comma delimited) from the save as type > save. Institute for Digital Research and Education. Simons – This document is updated continually. txt, flavor2. In Stata, this can be done by using either -gen- or -egen-. As mentioned above, only drivers with regular driver licenses and ID cards can apply for duplicates online, but you must also meet the following eligibility requirements:. In the world of data preparation a common task is to identify duplicate records in a file or data set. * The sample data mimics data from CPS. If you are looking for network tools, click here. What is the past tense of duplicate? What is the plural of duplicate? What is the adjective for duplicate? What is the noun for duplicate? Translations for duplicate Use our Antonym Finder. In this article I'll. Type help followed by any of the following commands to reveal a helpfile on how to use them. Case 1: Identifying duplicates based on a subset of variables. The SQL Server Query Optimizer uses this statistical information to estimate the cardinality, or number of rows, in the query result to be returned, which enables the SQL Server Query Optimizer to create a high-quality query execution plan. edu at 8:29pm 15 September, 2014. (Report) by "Depression Research and Treatment"; Health, general Depression (Mood disorder) Care and treatment Diagnosis Psychological aspects Depression, Mental Health screening Help seeking behavior Demographic aspects Help-seeking behavior Medical screening. Suppose you have a dataset with many variables, and you want to check: if there are any duplicated for each of the observation replace duplicates with random value from pool of existing values. A common problem with merging occurs when there are duplicate observations, which prevent the software from matching. run into in our combined ˘10 years of programming with Stata and to share our favorite tips/tricks. If you are looking for Windows password-recovery tools, click here. By default, that is, if plain is omitted, the contents of the table cells are enclosed in double quotes preceded by an equal sign (i. drop pandas. when we wanted to search for "violence" and "violent" above, we used one regular expression "violen. Data Management 2 Command List. Therefore, you will quickly find that you need to combine datasets in order to analyze the information contained within. Stata SEM command Tips and Tricks Videos. When no by then duplicated rows by all columns are removed. Identifying duplicate rows?. 2016 2 Overview Macros (local and global macros). duplicates report – reports all the duplicates values for each variable Create New Variables 1. The margins command is a powerful tool for understanding a model, and this article will show you how to use it. I know that I can drop all missing values with the following. Note that our ML program produces estimation results in the same format as an official Stata command. var1 and var2 are string variables, while var3 is numeric. duplicate observation is kept in the data set while all subsequent occurrences are deleted. VBA find duplicate values in a column Excel Macros Examples Codes: to find all duplicate records in a column in MS Excel 2003, 2007, 2010, 2013. To view your system's duplicates, please hop into chat or send an email to [email protected] In Excel, there are several ways to filter for unique values—or remove duplicate values: To filter for unique values, click Data > Sort & Filter > Advanced. Duplicates happen more often than you might guess. Some common procedures are below; for others, check the Stata documentation. 272analytics Videos 1,413 views. Despite the use of the word "duplicates" here to describe the problem the observations you want to -drop- are not _defined_ by being duplicates on -id- or on -date- or on -price- or on two or three of. Find duplicate files on Mac manually. I'm using Merge (left outer) on two fields with Expand column, my right side is unique (Check with SQL including case sensitive collation). xfgiro/istock. Sometimes duplicate data is useful, sometimes it just makes it harder to understand your data. For example, you may want to randomly assign your participants into treatment and control groups. Missing data in pandas dataframes. " You can then use that number in a variety of ways. What is Stata?. – This document briefly summarizes Stata commands useful in ECON-4570 Econometrics and ECON-6570 Advanced Econometrics. Generate a list of random numbers within a range, with or without duplicates. That way you can review the duplicates and decide if you want to remove them. I have a problem in removing duplicate observations for specific variables. They require human review instead. Powered by Devart's SQL Complete. On your machine, that dataset will be in whatever directory or folder the sysdir command tells you pertains to STATA. Input string: geeksforgeeks 1) Sort the characters eeeefggkkorss 2) Remove duplicates efgkorskkorss 3) Remove extra characters efgkors Note that, this method doesn't keep the original order of the input string. Feb 8th 2013. New in version 1. Data Management 2 Command List. I can highlight the duplicates and filter them but this takes way too long with 800k rows, and also i want to be able to keep one of the rows, and only remove the duplicates. They are listed as single observations. Exact duplicates – Two or more observations in a data set that have all variable values equal. I am trying to merge two tables into a new table using a LEFT JOIN. Duplicates happen more often than you might guess. Stata is the only statistical package with integrated versioning. Stata for Researchers: Combining Data Sets This is part eight of the Stata for Researchers series. Another common use of the FIRST. How to prepare panel data in stata and make panel data regression in Stata - Duration: 3:42. _N denotes the total number of rows. We were the first international distributor of Stata software in the world. Our collection includes hundreds of geospatial and numeric datasets, over hundreds of thousands of maps & aerial photographs, and more! We provide assistance finding maps and data and using GIS and statistical software. This paper is intended for users with an intermediate SAS programming skill set. Now let's use _N to find duplicate observations. After downloading all documents we can process it on Stata and make the database. I'm working with an edge list in Stata, of the type: var1 var2 a 1 a 2 a 3 b 1 b 2 1 a 2 b I want to remove non-unique pairs such as 1a and 2b (which are same as a1 a. Nearby Words. "Append" is dealt with at the bottom of this entry. Stata SEM command Tips and Tricks Videos. duplicates report – reports all the duplicates values for each variable Create New Variables 1. How to use duplicate in a sentence. Once you've run a regression, the next challenge is to figure out what the results mean. Remove Duplicates from sorted Array - Duration: 21:22. Downloadable! expandby replaces one observation in each group of the current dataset with # copies of the observation. However, odkmeta will not support a field whose long name when converted to a Stata name is a duplicate with an auxiliary field such as KEY,. , transforming the unit of analysis in a dataset). Strong focus on AP statistics. Stata has commands for dropping duplicates, but it is also important to understand why there a duplicates, because there might be something else wrong with your data. Not sure what you mean by "check the aa change for each duplicate", but presumably you could just get a list of the unique gene IDs, and then use a for-loop to iterate over them, selecting all relevant rows, and performing some operation on each group of duplicates. Cox of the Department of Geography at Durham University, UK , and coeditor of the Stata Journal, who in turn thanks Thomas Steichen of RJRT for ideas contributed to an earlier jointly written program (Steichen and Cox1998). Explanation: duplicates drop removes duplicates. Written by yt3f. 1 Appending Data Appending data means you have two les of the same data, just with di erent cases. Share this content. Let’s go through seven of these and what the options are instead. Duplicates aren't bad, but you may need to know how many times a value is repeated or how many unique values are in a data range. txt, flavor2. R has a useful function, duplicated(), that finds duplicate values and returns a logical vector that tells you whether the specific value is a duplicate of a previous value. After learning to read formhub datasets into R, you may want to take a few steps in cleaning your data. If you are looking for Windows password-recovery tools, click here. We've got 4 shorthands for Duplicate » What is the abbreviation for Duplicate? Looking for the shorthand of Duplicate?This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: Duplicate. 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. – This document briefly summarizes Stata commands useful in ECON-4570 Econometrics and ECON-6570 Advanced Econometrics. Subgroups: (optionally) select a categorical variable to break-up the data in several (max. variable indicator variables is to determine the length of time between a patient's first visit and his last visit. One of the programs is called dups. isid x1 x2 x3; The duplicates command can list and flag duplicate observations. Fortunately, Stata provides a suite of commands to identify and remove duplicates — see help duplicates. duplicates list x1 x2 x3. * The sample data mimics data from CPS. 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). There are design and data situations that will eliminate repeated measures ANOVA as a reasonable approach. Obtain and manipulate data. I wonder why I get a data including duplicate rows after merging. Information to be analyzed is usually scattered across multiple datasets. It is specially (but not exclusively) designed to be used with the PISA, TIMSS, PIRLS student achievement datasets as well as the PIAAC dataset. , transforming the unit of analysis in a dataset). Not sure what you mean by "check the aa change for each duplicate", but presumably you could just get a list of the unique gene IDs, and then use a for-loop to iterate over them, selecting all relevant rows, and performing some operation on each group of duplicates. You may add a specific pathname to save the file somewhere other than in. In R, you have the same requirements for key variables. investigate duplicates so that a more informed choice can be made when deleting observations. Consider the following DATA step, which defines the dates and weights for four male patients who visited a clinic as part of a weight-loss program:. countmatch supersedes the previous fndmtch2, now withdrawn. A Stata date is simply a number, but with the %td format applied Stata will interpret that number as "number of days since January 1, 1960. If you'd like to isolate cells in a Microsoft Excel data sheet based on criteria that has a partial cell match, this can be done through the use of a MATCH function. Many people access the material from this web site daily. A guide to using Stata for data work. David Ringstrom, CPA. edu at 8:29pm 15 September, 2014. Data Management 2 Command List. View all posts by andagostino Post navigation. 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. Ifyoutypedat the Stata prompt something of the form. Make inferences. " You can then use that number in a variety of ways. Free online SQL Formatter for SQL Server - Beautify SQL statements instantly and convert code into well formatted script. June1 - 20 events June2 - 55 events and so on till. The qui part suppresses the output and is optional: the way Stata presents the output is rather uninformative and messy, as most of us are used to thinking in mega- and gigabytes, not single bytes. The Java programming language provides a wrapper class that "wraps" the char in a Character object for this purpose. Neither command is really applicable. Downloadable! expandby replaces one observation in each group of the current dataset with # copies of the observation. Enter your email address to follow this blog and receive notifications of new posts by email. Considering certain columns is optional. The Matrix matrix A = (2,1\3,2\-2,2) matrix list A A[3,2] c1 c2 r1 2 1 r2 3 2 r3 -2 2. This paper offers a synthesis of research evidence around teaching light to primary and secondary school pupils as part of the Institute of Physics Promoting and Interpreting Physics Education Research (PIPER) project. If you're new to Stata we highly recommend reading the articles in order. Remove Duplicates from sorted Array - Duration: 21:22. frames from vectors with duplicates. Aug 18th 2016. June1 - 20 events June2 - 55 events and so on till. If True, the resulting axis will be labeled 0, 1, …, n - 1. Errata for An Introduction to Modern Econometrics Using Stata. com with free online thesaurus, antonyms, and definitions. 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. duplicable. Introduction Features of Good Data Work Managing a big data project is hard! Here are some principles that can make it use duplicates tag, gen() to x unique id issues Assert what should be the truth e. There are at least 3 convenient ways to count the number of distinct values contained in a variable: -tab-, -inspect-, and -codebook-. duplicates was written by Nicholas J. Generate a list of random numbers within a range, with or without duplicates. A common problem with merging occurs when there are duplicate observations, which prevent the software from matching. Removing duplicate observations. Mdr matione tallieur bou thiaga bo kham 😂😂😂😂. Finding Duplicates. table are duplicates of a row with smaller subscripts. 272analytics Videos 1,413 views. Determine Duplicate Rows Description. I am trying to removing duplicates which are identified as unique combinations of a case id and individual id. How to assign serial number to duplicate or unique values in Excel? If you have a list of values which contains some duplicates, is it possible for us to assign sequential number to the duplicate or unique values? It means giving a sequential order for the duplicate values or unique values as following screenshot shown. In Stata, several programs are available to detect the duplicates and can also optionally drop the duplicates. Below is a sample data set that can be used for working. 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相关性分析命令 关键词:stata相关性分析、stata做相关性分析、stata 相关性检验命令、stata变量相关性分析、stata相关性分析结果 相关性分析 (一)相关性分析 1、Pearson相关系数命令格式:correlate(简写:cor或corr)[varlist] [if] [in] [weight] [,options] 2、spearman相关系数命令格式:spearman[varlist], sta. This case is dealt with via the "merge" command. In Stata, the seed is a positive integer (between 0 and \(2^{31}-1\)) that Stata maps onto the state of the RNG. When the specified variables are a set of explanatory. These videos can also be found on my YouTube. 重複データを調べるコマンドがduplicatesです 変数var1 var2の重複データをデータブラウザで表示させるには duplicates browse var1 var2 です。 たとえば所在地(syozai)、部屋番号(heya_no),登録日(touroku_date) が同じ標本を表示したいときは duplicates browse syozai heya_no touroku_date. In this tutorial, you'll learn the techniques to transpose data in Excel. Perhaps Sharoon means -dups- from SJ and the official Stata command -duplicates-. This will open the spreadsheet in Excel, allowing you to check it for cells containing duplicate values by using the Conditional Formatting feature. If the statement is true, Stata will march forward; if the statement is false, Stata will stop and throw an error, drawing the programmers attention to the problem. Get to know Stata's collapse command-it's your new friend. Martin Judd heads up Joined-up Data, a product and service which saves you the headaches of merging and de-duplicating Excel files. 10练习12第二章数据管理和画图152. Stata opens only one dataset at a time. Watch and Learn. We constantly add new features; we have even fundamentally changed language elements. Appending observations. duplicates drop x //删除重复值,保留重复值的第一条记录 Stata简介:Stata使用简单,功能强大,是数据分析中常用的统计计量. Data Management 2 Command List. When the specified variables are a set of explanatory. Identifying duplicate rows?. The errata for An Introduction to Modern Econometrics Using Stata are provided below. I tried using the following command:. 5 Ways to Duplicate Worksheets in Excel. D-Lab Stata Cheatsheet Chris Kennedy - University of California, Berkeley - January 2016 In Progress 1. Because of how Stata is written, duplicates do not lower the quality of the sample selected. These videos can also be found on my YouTube. The margins command is a powerful tool for understanding a model, and this article will show you how to use it. From the Useful SQL Scripts Series. This tutorial shows how to import Excel files into SAS, depending on your version of SAS. Stata drop duplicates - Duration: 5:57. _n basically indexes observations (rows): _n = 1 is the first row, _n = 2 is the second, and so on. , transforming the unit of analysis in a dataset). DataFrame with duplicates removed or None if inplace=True. duplicates cannot be simply eliminated by a computer program. We were the first international distributor of Stata software in the world. The web query downloaded data has 433,066 observations. Despite the use of the word "duplicates" here to describe the problem the observations you want to -drop- are not _defined_ by being duplicates on -id- or on -date- or on -price- or on two or three of those. Combining two data sets is a common data management task, and one that's very easy to carry out. For example, person's age is sometimes coded 999 for missing. Do you have any good ideas to solve this problem in Excel?. Input string: geeksforgeeks 1) Sort the characters eeeefggkkorss 2) Remove duplicates efgkorskkorss 3) Remove extra characters efgkors Note that, this method doesn't keep the original order of the input string. tab varname, nofreq display r(r) The option nofreq supresses the reporting of the frequency table. frames from vectors with duplicates. "UNIQUE: Stata module to report number of unique values in variable(s)," Statistical Software Components S354201, Boston College Department of Economics, revised 15 Jul 2018. In such cases, we want to find the complete name of the variable provided we know a part of the name (i. The list subcommand lists the duplicate observations:. Then we compute the mean of this resample and obtain the first bootstrap mean: μ 1 *. STATA is telling you that the observations in B. Something like * warning: untested code reshape long ipc_, i(id) bysort id ipc_: gen superfluousandredundant = _n > 1 drop if superfluousandredundant bysort id (ipc) : gen j = _n reshape wide ipc, i(id) j(j) Actually, the last -reshape- might not be a good idea. ignore_index bool, default False. ----- help for expgen (Roger Newson) -----. When applied, the MATCH function searches for items in a range of cells based on any. This video follows a step by step process for identifying, tagging, and dropping duplicate observations in a dataset. Formulating your question is very important if you want a good answer. 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. This new variable contains the number of unique values of the varlist for each level of the by variable. Find duplicate files on Mac manually. Remove Duplicates from sorted Array - Duration: 21:22. In order to illustrate how to find duplicate rows in an Excel spreadsheet, we will use the above example spreadsheet on the right, which has data spanning three columns. If there are 2 variables, var1 and var2, after sort, Stata will sort the observations according to var1 first. While it might be argued that a hypothetical talking dog would represent an important scientific discovery even if n = 1, few people would be convinced if someone claimed to have a talking dog that had been observed on one occasion to speak a single word. For a list of topics covered by this series, see the Introduction. issues related to good data management in Stata. do" * This is a sample program that eliminates duplicate cases from a datset. StataNordic. "I don't want duplicates" means: do not give me duplicates, which means, give me unique values. Eliminating Duplicate Cases in Stata1 * "h:\000\STATA_doc\DelDupCases. help estcom. dta for data files in Stata and. Warner Automated Auditors, LLC When Sarbanes-Oxley was passed in 2002, many companies were forced to take an in-. consisting of or existing in two corresponding or identical parts or examples; being the same as another… See the full definition. Tips 65:duplicates删除重复变量_Stata_新浪博客,Stata,. The duplicates commands provide a way to report on, give examples of, list, browse, tag, or drop duplicate observations. Tags compustat duplicates, duplicates in stata, gvkey and datadate duplicates, gvkey and fyear duplicates, panel data duplicates, repeated time values within panel. 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. A very useful application of subsetting data is to find and remove duplicate values. Stata for Researchers: Combining Data Sets This is part eight of the Stata for Researchers series. " to find both. A Stata date is simply a number, but with the %td format applied Stata will interpret that number as "number of days since January 1, 1960. Aug 18th 2016. do" * This is a sample program that eliminates duplicate cases from a datset. A guide to using Stata for data work. Stata has been dedicated to it for over 30 years. For instance, you may need to make a copy of a worksheet to serve as a backup copy or for testing purposes. We can easily do so by: To find the duplicate values, it is often tedious to search for it manually. Make inferences. Then after take that text document to Stata and process it to find other web links to download. Find descriptive alternatives for duplicate. This handout reviews using the most valuable command for managing multiple data sets,. The mapping is not one to one because there are more states than seeds. Stata for Researchers: Combining Data Sets This is part eight of the Stata for Researchers series. The method I show below is not the most convenient way to. However, when I use the nodupkey option, it is removing hundreds of records instead of the 11 records with unique combinations of these two variables. duplicates list x1 x2 x3. That's OK, provided they are not selling on the material as their own; however if your productivity gains from the material you have used, a donation from the money you have saved would help to ensure the continued availability of this resource. Abstract: dups provides information about unique and duplicate observations in the dataset and, optionally, drops all duplicate observations. patient ID, date of visit, program name)? The rest of the variables, say, v1 - v20, however, may be the same. AT some point, when merging datasets from multiple sources it may happen that you get duplicate…. Ashok Chelian I program in SAS and STATA quite frequently. We've got 4 shorthands for Duplicate » What is the abbreviation for Duplicate? Looking for the shorthand of Duplicate?This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: Duplicate. Not all data providers choose to code missing values as Stata default! Some will code missing values as very large numbers. Here's how to tackle these tasks in Excel. A very useful application of subsetting data is to find and remove duplicate values. Written and illustrated tutorials for the statistical software SPSS. Hold down the Alt + F11 keys to open the Microsoft Visual Basic for Applications window. Tagged duplicates, econometrics, Stata. Following the previous article about creating data tables in SQL, now we want to load data into our freshly created SQL table. GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Errata for An Introduction to Modern Econometrics Using Stata. We can use “copy” command to download the html page as text document. I need a daily count of events of a particular type per day for an entire month. Instead, I want it to be like an observation that compares two products in different cities. To use recode, you must provide a list of variables to be recoded and the rules associated with that change. Often, I can't find an intelligent, clear explanation for a. D-Lab Stata Cheatsheet Chris Kennedy - University of California, Berkeley - January 2016 In Progress 1. The tidyverse family of packages allows you to do everything you'd do in terms of data munging and more in stata. Quartiles divide a rank-ordered data set into four equal parts. But it’s limited. See Fuzzy Grouping Transformation for more details. 5 Ways to Duplicate Worksheets in Excel. Some common procedures are below; for others, check the Stata documentation. I’ll explain. Recode an existing variable in Stata. 26,388 likes · 217 talking about this. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. For a list of topics covered by this series, see the Introduction. Define duplicates. Do not panic about the duplicates. Vlookup and return multiple matching values without duplicates by using User Defined Function. You can specify many different operators including means, sums, counts, medians, percentiles, standard deviations and more. This portfolio contains 32 observations. Ask Question Asked 6 years, 11 months ago.