Stata Id Within Group, 1 and Windows 7.

Stata Id Within Group, One key problem I Learn how to accurately count by group and collapse datasets using Stata. For example, for studyid=0, I like to generate a var=10 between Identifying observations that are consecutive is not the problem, but I can't figure out how to increment the group variable within an id group. D. I already have an id variable, and I have multiple observations per id, but I want a new id variable containing 1 for the first id, 2 for the second, and so on. g. Now I need to create all pairs of group id-s in a year and calculate from the given list and weight of components the cosine siimilarity of each pair. If it is not possible than any other manner through which i can generate IDs for my panel I don't understand how you can use packages you reportedly can't install! Perhaps you are moving between a personal machine and a work machine. Alencar, M. Hello! I have the following data: Participants (each with a unique identifier; here I'll just label them Participants 1, 2, 3) Child ID (each with unique identifiers; here just letters) birth year per child. varlist may contain numeric variables, string variables, or a combination of the two. For a non-grouped datafile, syntax like -isid- or -duplicates- is able to do the work. , . dataset, but it is so within each a. I guess what I would need to do is to loop over each observation and each phone number to identify duplicates, which would take The companies have existing IDs, but I need to 1) create new 3 digit ID's for the companies starting from 101, 102, etc. , job_code). Login or Register by clicking 'Login or Register' at the top-right of this page. the id starts and ends within a district. Hi, So I'm new to stata and only just figuring out the absolute basics. These new groups should incorporate the observations with the same name (for example X), Hi all, I have panel data with an identifier (ID) and a time variable (mofd, monthly). I want to assign _n for every time 'active' changes from 1 to 0 or vice versa within the unique id and case number. I am trying to generate two variables, "wanted1" and "wanted2", that by group_id generates counts for obs == 1 based on observations on the variables "obs" and "period" Identifying duplicates within groups based on two variables in reverse order 03 Jan 2020, 03:38 Dear all, I matched 2 datasets using the joinby command on the variable "project_id". I have a dataset that has 12 variables and around ~ 7000 observations for each. The problem Each observation in my data represents a respondent. For example, given a The problem I have panel data (or longitudinal data or cross-sectional time-series data). When a match is found between two observations with different So depending on the scale of the number of ID's you wanted to drop or exclude, I can imagine doing this one of three ways: 1) If you are dropping ID's within a sequence (drop if For each patient id, I want Stata to scan variables dx1 dx2 dx3 dx4 across all of the patient's claims and return a count of the number of specific diagnoses that appear at least once. - egen (total)- will just count how many observations are within a group. You can browse but not post. Hi! I have a panel (id year) data with variables including msa (categorical 1,2, 3), wm_38 (binary) , and wm_310 (binary). Besides the first variable id, which gives an identifier, the other Home Forums Forums for Discussing Stata General You are not logged in. UCSD - Hamilton Glaucoma Center Tel: 858-5345334 / Fax: 858-8220615 [email protected] 9500 Example 2 taset. I have a dataset like the following: id value 1 99 3 88 2 77 1 66 1 55 3 11 I want to put into a single row all the value that Within each group of observations identified by a unique id (call the variable id), x is missing for all but one observation. E. But the matched IDs get repeated all over again making different By id_firm year idmain2_out, I want to create (expand) new observations so that it shows all the inputs that were used by all firms that produced that output that year, along with an Sum by group per id 11 Sep 2023, 11:22 Hi Stata Users, I am using Stata 17 on Windows and have some data that I would want to find a sum by group Example data (with the desired variables) is The group and time functions contain the group ID ('country1' for our dataset) and time ('year' for this dataset) variables, respectively. for gvkey=9375, output data must add 2 new observations with sic = 115, 6552 because for the cohort psic=3100, it To: statalist@hsphsun2. I'm supposed to create 'unique Ids' for each Hi, So I'm new to stata and only just figuring out the absolute basics. The case numbers can vary within How can I organize my data based on id in stata. If the corresponding values We would like to show you a description here but the site won’t allow us. Based on a characteristic of the IDs, I have formed 10 portfolios. For the dataset without tax information, I will assign tax I have tried egen command as: bysort id : egen total_id = count (id) - which allows me to calculate the totals of each id. My data set is clustered and consists of A row *may* also receive the same group identifier in case var2 is equal to var1 (or var1 - 1) in any other row even if its value of var1 does not coincide with var2 (or var2 + 1) in any Hello Stata users, On my dataset the individuals have two household identifiers from different sources, with the household ID being different from one variable to the other. com> Prev by Date: Re: st: Group Agreeing with Amin's comment, you'll increase your chances of a useful answer by following the FAQ on asking questions - provide Stata code in code delimiters, readable Stata output, I have an id variable within a group, and I have multiple observations per id. Stata evaluates person [4] as missing in this circumstance, but we then have How do you define group characteristics in your data in order to create subsets? Say that your cross-sectional dataset contains microdata—a record for each employee, for instance—and you want to As we cycle over the groups within the loop, we often wish to display the identifier of the current group. I need to group the cases into two by the IDs using the last character (N or P). I used the following two lines of code: egen count_obsv = tag(loc_ID year) This adds a counter to my dataset (count_obsv) which is 1 Home Forums Forums for Discussing Stata General You are not logged in. The number of jobs is Dear statalist fellows, short question: is there a way to create an id with? egen id_2=group (id_1) that generates a string id_2 instead of a numeric one? The ideal: instead of having Now n1 is the observation number within each group and n2 is the total number of observations for each group. IDs are repeated because right now they are allowed to be in more than one group and my dataset is in long format. One If the id variables are stored as strings you can use the -concat- subcommand to join them together, and if they are stored as numbers you can use the -group- subcommand to Hello everyone, I suspect my question is quite simple but I did not find any answer on internet after searching more than one hour, so here I'am. Suppose I first generate an id for every observation: Dear Statalist. For this type of dataset, we usually need two variables to identify the observations: one that labels the individual IDs and another that labels the p riods. 4 0 4 . edu Subject: Re: st: copying a string variable to all rows within a group Hi Again, you below explanation may go some way to explaining Dear All, I have a dataset with group ID, individual ID, age, and sex of the individuals, as well as their relationship. To list the lowest score for each group use the following: list if n1==1 score group id nt n1 n2 1. It is extremely useful in the presence of multiple variables, and especially if they are of different types Target: In my data there exists a variable, x. For this type of dataset, we usually need two variables to identify the observations: one that labels the individual IDs and another that I am trying to generate an enumeration variable for groups which are defined by other variables. I need to generate an ID_Var, such that the within-group identifier is Var3, and any value 1 and above belongs in that group, until it encounters 0. The Secondly, I would like to know if there is any way to set xtset ID Year while keeping the two acquisitions of the same firm within the same year (as the deal specific data and the The number of observations (rows) in each group ranges from 3 to 20. For I want to create two new dummy variables that say whether the variables primset and primact vary within classroomid. As we cycle over the groups within the loop, we often wish to display the identifier of the current group. Confirm that the values of IDs in student are nested within school, which is nested within district assertnested district school student For panel data, where panels are individuals with IDs stored in Within each family ID, for each person I would like to see the sum of income of other family members, but only of those family members that are up to 4 years older than each Hi Stata Users, I am using Stata version 15 to calculate the number of distinct cases (firm) by a group of two variables (entity and year). But sorting on p_id says nothing about sort order for the Dear all, This might be a trivial question, however, I am posting as I have searched multiple stata help pdfs without a relevant answer. Assign group ID based on variable 14 Dec 2022, 22:40 Dear Statalist, I have a data set with two variables 'id' and 'group'. I want to create a new variable that sorts the number of IDs 12. But presumably you want to calculate panels, not observations, so you need to count only I was able to group duplicates and assign them an ID in order to calculate the elapsed time within the group; however, I'm inadvertently excluding some of the dates that I wish to I would like to fill up values for a variable, say number, with the first (and only) non-missing number in the same group (captured by the group identifier id) The freq variable is because we currently are running this with replacement, so I have used expand for to create duplicates of those control observations that are used multiple times. If there were three oldid ==1 observations followed by two oldid ==2 observations in the Hello everyone, I have one question related to counting distinct values by groups. Thus [1] denotes the first observation, and [_N] denotes the last observation within each group. 1 for Mac, I have the same issue as Frauke: I get a type mismatch when attempting to count a string variable through egen. *Operation*: I want to assign the single nonmissing value of x to all missing values I have a survey dataset which contains household ids and individual ids within each household: individual 1 represents the interviewee him/herself. Within each group of observations identified by a unique id (call the variable boxnumber), x is missing for all but one observation. Hey there, I like to create a new column indicating the occurrence of non-missing BAM within each id. Hence, we have attempted to review the topic concisely yet comprehensively Dear all, We are trying to make a new variable which gives every number within a consecutive series of numbers a ''name'', which is the highest number within that consecutive series. t. I have a dataset in Stata and want to count by group (loc_ID) and year. Within groups of observations, you can compare with the previous value. Assume that we have our dependent variable named as stock_returns, independent variable as stock_betas, Create percentage variable within group 11 Nov 2020, 13:54 Hi, I would like to create a percentage variable based on observations within group. I want to know how to calculate correlations within Numbering by Group The following commands illustrate how to number by a group in Stata using _n. I need Home Forums Forums for Discussing Stata General You are not logged in. How do I do this in stata. Section A . For those that is 1, it'd be The data is provided. These IDs are coded and nested, based on strata-type variables which uniquely identify the observations. I have distinct groups of case-control matches assigned a matched IDs. 1 and Windows 7. Consider the following data: ID INFO DESIRED_VARIABLE 1 A The data is sorted by Var1 Var2. egen new_id=group (a3 nuts3) Therefore, the grouping variable in this case would be the time variable. This is consistent with post #3: your code Hello, I have monthly individual program data with the following variables: individual identifiers (id), month-year (modate), and household ID (case). Creating unique group ID variable 01 Mar 2020, 10:47 Dear all I have a hopefully trivial question that I can't get my head around right now. When you generate a variable and the expression evaluates to a string, Stata creates a string variable with a storage type as long as necessary, and no longer than that. phd2007@london. For instance, you have districts and schools within them, and many of the variable names in your data match * # #. But I am not able to figure out how to calculate percentages how to get summary statistics across groups rather than within group? 24 Apr 2022, 11:24 Hi everyone, I'm using Stata to deal with a hierarchical dataset, where I have l evel one Example 2 isid is useful for checking a time-series panel dataset. That is to say, we include the operators and the levels of the factor The following explanation only refers to group id 1200. I hop someone can help me out. 4 1 end I want to find the position of the "1" within id, which is always in the last place How do I produce a dataset based on all possible pairs of identifiers within each group? So, with 80,000,000 observations, you are likely to have more than 16,000,000 groups, and thus some of the ids are losing accuracy. The command egen newvar = Here, final owner ID 1 would own property 1, 2 and 5. My dataset is like this (excluding the group column). Keep groups of data when the 1st ob of the group meets criteria 05 Jul 2018, 10:26 Dear all, Been learning so much from this forum and finally have my own inquire to share. Using Stata/MP 14. Tried a couple of if statements and other things adding to this code but nothing seems to work. We can refer to the indicator variables in expressions by typing, for example, b[i2 group] or just b[2. Before we set the data using tsset, References: st: Group identifiers within group From: <isabel. group_id ==13 or group_id==17) both variables "won_close_dummy" and "loss_close_dummy" have at least one 1 the new variable "donated" I followed the example above, and got racesex values that I am having difficulty interpreting. I have the following dataset with variables id and group. Based on the dataex given If status doesn't change then after sorting within panel first and last values will be identical. The Stata command search would How do I produce a dataset based on all possible pairs of identifiers within each group? I have a dataset containing a group variable, an individual identifier variable, and various descriptive variables. It creates one variable taking on values 1, 2, : : : for the groups formed by varlist. If there were three oldid ==1 observations followed by two oldid ==2 observations in the How do I create variables summarizing for each individual properties of the other members of a group? Dear Statalist, I would like to generate a variable which indicates groups within groups. This process requires an The trick here is to create a random variable, sort the dataset by that random variable, and then assign the observations to the groups. I wanted to create new_id2, which is basically the group identifier of old_v2 (and WITHIN old_var1). That works too for the first observation for (2) if the observations can be classfied into 2 group , the first one is new consumer ,the second one is old consumers ,I need to find the duplicated observations of each I have a dataset like this, clear input byte (id state) 1 0 1 . e. Flagging distinct records within a group of records by evaluating differences between two variables 27 Jan 2017, 05:34 Hi all, I'm using Stata 13. My data looks like this: ID name title 1 John I've taken a project in which the dataset separates the patient information and the disease observation, but the two observations have the same ID. The respective case ID just associates the controls with their respective cases. I know I should be thinking of preparing for some foods for Thanksgiving tomorrow, but still can't solve I create a unique identification. e. I would like to calculate the % of females within each age group for each year so that I I have panel data, the time-variable is id, and value-variable is Time: xtset time id, monthly I need to sort id into 5 groups/portfolios at each month t based on variable x (volatility) from We use to get the maximum within the group into the last member of the group. group. My dataset looks like this I wonder if there is any way I can generate a count variable within each id-group, where the first observation gets the number 0, the second 1 and so forward? I can only seem to find Downloadable! group_id consolidates values of an identifier variable when observations are matched using other variables in the dataset. My data set looks like the first two columns of the following block, and I would like to add the third column, where newvar resets itself anytime id If anyone has any tips on getting Stata to work with a regional indicator type variable that comprises a number of the same time-variables (here year) across different individual Home Forums Forums for Discussing Stata General You are not logged in. I made the matchgroup variable because the real ID numbers in Hello Statlist, I need to calculate differences between avi_study_day by non-missing BAMid within each studyid. Again, the observation years varied from cluster to cluster. unibe. Then within groups of x, the first observation is tagged as 1; all others within the same group Hi everyone, I'm trying to assign a unique ID to blocks of repeated values within a group. I have a data set with lot of duplicates : My data needs to fill in multiple values within each group. If this seems cryptic, it is all spelled out in Cox, N. Hello, I appreciate your help on this. ch> Re: st: Group identifiers within group From: Nick Cox <njcoxstata@gmail. Checking your browser - reCAPTCHA I want to generate group-wise IDs for panel data set using STATA. For instance, I have a dataset like this: Person Activity A If you wish to make groups for different categories then this video is for you. I cheked How can I create all pairs Fortunately, working with groups is one of Stata's greatest strengths. Check for unique identifiers (single variable) This example uses a Country Opinion I have an issue in Stata I can't solve. The prefix command bysort does the sorting required and ensures that this is all done separately within the groups defined by group_id. We see how to summarize data for subgroups, how to generate new variables among subgroups, and how to reshape out data. . Dear all, I'm trying to create a new variable with a group identifier, but on a 2nd level. My situation is the following: I have a pooled data set consisting of four cross Counting distinct values by group 25 Sep 2019, 01:01 Hello, I have a data-set with a unique id (permno) and time (date). Discover the best methods to group observations with the same ID in Stata, ensuring accurate and comprehensive data analysis. group, and 3. EDIT: to be clear all groups have different years, so one group can have How do I create a variable recording whether any members of a group (or all members of a group) possess some characteristic? Stata is smart. for example , distric kunini in province Karim has three localities and will be assigned Documentation accessible through Stata includes this paper on composite categorical variables and this paper on handling dyadic data. The reason why variable " change " has been flagged in 2006 is because there is an occurrence of 3 (being the highest) in year 12 Mar 2023, 16:55 Dear Statalist members, I have a conceptual question regarding the use of xtreg, fe when the panel identifier id reflects a group variable [gen id=group (country firm)], thus the panel Dear colleagues, I am using the following command to create a unique ID for each farmer (a3 ) in a specific nuts3 region. Subscripts are commonly used to interchange suffixes at the ends of variable names. Data Validations in Stata: Practical Examples ¶ Example 1 . Some variable represents each I have the following data structure. I want to generate the sequence (such as 1,2,3,4) for the subID group within the ID. For example, ID #1 is a white (0) female (0). One of the groups is a household It was my intent to follow the data with the rangestat command that does something like count, for each observation, the number of times that observation's hhid appears in If you create a single unique id using the -egen group- command as suggested, the households and clusters must be in the same order in every single dataset otherwise the created I want to be able to tell if all values of value are the same within group. Under by: subscripts are always applied within groups, so that _n runs 1, 2, and so forth in each distinct group. There are individuals (referenced by id) observed over time (referenced by t) who can have one or more jobs (jobid). I have taken the year of this date using year (date) to create a References: st: Creating a group variable based on values in observations From: "Chris Parker" <cparker. I want to create the column "category" , where if an ID variable is found in the columns _n1, _n2 or _n3, the Dear all, I would like to number observations within groups, however considering only observations that meet certain criteria. I want to first sort by group and date, and then perform a cumulative sum over one of the variables, but by Hello. A minority of records create dataset based on all possible pairs of identifiers within each group in Stata Asked 5 years, 1 month ago Modified 5 years, 1 month ago Viewed 653 times How can I create unique identifier, say a new variable stateID that would take an integer value for all AL labels regardless of the year? egen stateID = group(state) does not help. I need to create a new variable (wanted) that starts The OP says, A is company ID, B is year, C is the name of employee in each company. I am a new STATA user with minimal experience. Stata will give us the following output table: Dear all, I am a bit puzzled about the behavior of the group function. 3 1 4 0 4 . Learn to consolidate patient an Hello, I have data that is split by wave (4 years available), age group, sex and Life satisfaction. The racesex variable returns a value of 1. Then we use to copy the last (and greatest) value to all the other records as the new variable Hello, I'm generating data and want to create an identifier for groups of rows. The problem of Hi, I have a conceptual question regarding panel data analysis. Relationship may take several values but can only be the Counting duplicate observations only once by group id 10 Apr 2016, 13:13 Hi, I am looking to count the number of unique trainings that each company took. I do know that each group has only one non-missing value (10 for group 1 and 11 for group 2 in this case). I'm supposed to create 'unique Ids' for each makeid creates a unique ID for every observation in the dataset. The order 0 Suppose I have the following data in Stata: I want to make an ID for new groups. So, for example, my data has the obs, In other words, I need to an identifier based on either id or id2 (or both) remaining constant over time within a given cluster. So basically, I need an ID that is 1 for all observations within 12 Months of the first observation if sorted by firm_id and Mai 2009 11:55 An: statalist Betreff: st: how to identify unique id variables within groups? Dear all, For a datafile like : id var1 1 1 1 2 1 3 2 1 2 2 2 1 I expect to check whether the value of "var1" within one You want to bump up a count whenever the condition changes. In this article we'll discuss tools for working with groups, and at the same time try to give you more experience using Stata's syntax to I keep running into this issue where I want to be able to assign a group id using the egen var = group (), by () command, but Stata doesn't let you use , by () option with the egen Thank you very much Clyde for the advice . In this notebook, we look at within-group analysis. You can tag distinct observations (or first occurrences). See example and data excerpt below. "identifier" is the 1. My goal Hello Statalist, I am attempting to create a group ID which identifies each unique combination of the variables "investorid", "AnnounceDate2", and "uniqueinvestmentid" in the Hi Statalists, I came across an issue while creating group identifiers. Within each group, some observations have missing value. may not be combined with by. A problem is that a value of the wm_38 is not consistent in a Calculate correlation within groups 25 Jun 2015, 05:14 Dear Statafriends, Upfront apologies if this question has been asked before. Consider the following panel data where Firm_ID identifies a firm, CEO_ID identifies the respective CEO in place An observation in my dataset consists of a firmid-year-j-product combination. lechner@vetsuisse. I have patient level data with and ID and subID. If that dyad has duplicated, the frequency should be at least 2. But none of them works when combining with -by-. For the variable "GroupID" I did the following: by AnimalID: gen GroupID = _n Is it possible to do the same but on the All the observations have a unique ID. com> Prev by Date: Re: st: Creating a loop for placing observations in a macro This means if within a group (eg. Date of birth is in a string variable (pdatbir). Here is an example of the data with ID, year, and the job code (i. A sample of the study IDs is listed below. The OP wants to generate a unique ID for each company-name pair, and the ID to be Follow-Ups: Re: st: Creating a unique identification number within a group From: Nick Cox <njcoxstata@gmail. edu> st: RE: Creating a group variable based on values in observations Welcome back to the Stata course on summary statistics and regression analysis. So if var1 uniquely identifies individuals within id, than _N within -bys id var1- In my dataset an observation is a firm (f_id), product (p_id), country (c_id). I want to count the number of products per firm (regardless of how many countries it is shipped). it assigns two observations the same group no. For example, a new column named "BAM_panel" to start from 1-6 for id 3. J. For Sent: 29 February 2012 11:39 To: statalist@hsphsun2. I used codes The home of high-quality statistics and data on Europe Under the protection of by:, subscripts apply to observations within each group. How would I do this? For example, I want the new variable Hello! I'm working on a panel dataset that groups individuals based on the id of the family (variable "nquest") and the number of order within the family (variable "nord"), to give an I've sorted the data with "sort id casenum startyear startmonth active". Home Forums Forums for Discussing Stata General You are not logged in. Selecting all dates within groups that are within one week of each other and creating a sub-group id 08 Dec 2021, 14:04 Hello all, I'm a new Stata user and new to Statalist; I'm Hello. The I'd like to create a new variable that takes a value of 1 for all observations in a group if, for any of the observations in the group, X is true. 2008. This I have a dataset divided into groups, and I want to check to make sure that the groups cannot be further divided into distinct subgroups. The sort order is first by x and then by order. (For more on that distinction, see the 2008 paper below or the manual For each subject, there are two group variables (record_id and id), and one of these group variables has increasing values (id). Another way to see this is if I could create a new variable that contains all unique values of value within group Home Forums Forums for Discussing Stata General You are not logged in. ) Questions about counting distinct or unique observations continue to arise on Statalist and at the Stata Users Group meetings. harvard. Under by family: subscripting is interpreted within groups defined by family, but there is no 4th observation for family 2. Recall that there was a mapping from groups of id according to their order of occurrence in the data When _n is combined with by, however, _n is the observation number within by-group, in this case, within oldid. , say group, as My goal is to calculate the mean TeamComp in those periods. I am using Stata 13 and working with two datasets, one of which contains tax information and the other does not. I want to assign observations with a same 'group id' if their From: Jia Xiangping < [email protected]> st: AW: how to identify unique id variables within groups? From: "Martin Weiss" < [email protected]> st: RE: AW: how to identify unique id variables within groups? _N in combination with -bys- gives the total number of observations withing each group defined by the variables in -bys-. Before we set the data using tsset, we want to In order to get the unique values of a variable (for example how many times an identifier occurs among observations) there are a few different approaches we can try. I am looking at a set of longitudinal data, whereby This command counts the total sample size of each unique parent_ID by subs_ID dyads. Discover the key functions like `egen` and `collapse` to harness the power of When _n is combined with by, however, _n is the observation number within by-group, in this case, within oldid. edu Subject: Re: st: Count of unique cases by group By "unique" you evidently mean "distinct". In front of ID 67, there are three ID variables given. For instance, for oup, 2. I ran the following code and expected Stata to produce the How do you define group characteristics in your data in order to create subsets? Say that your cross-sectional dataset contains microdata—a record for each employee, for instance—and you want to For this type of dataset, we usually need two variables to identify the observations: one that labels the individual IDs and another that labels the periods. We will have a look at how to manage data within groups today. There are three groups like "A"," B", "C" but I want a new id variable containing multiple observations I'm new to Stata and I am trying in vain to create a new variable that I can use together with my other variables for a linear regression model. I want to calculate the number of distinct products each firm sold to a non-USA country in 2003. I have hospital Description grouplabs is a powerful command to create value labels for the groupped variables in Stata. Let’s use the hsb2 dataset as an example by randomly assigning 50 Checking your browser before accessing undefined Click here if you are not automatically redirected after 5 seconds. Is there any approach to check the unique value within groups? I am super rusty in Stata, haven't used it for so long and my version is still 9. What I am looking for The setup is as in the example below. where is a str1 in Hi, I need to create various dummy variables that would put households into groups based on characteristics of individuals in the household. 1 1 2 0 2 0 2 1 3 0 3 . I have panel data with an id variable for each person, I want to generate a subgroup identifier based on consecutive number of days. That means that each ID is sorted I have a dataset with approximately 300K observations and 50 variables with multiple rows of data per ID (seq8). Example: ID: 12345 Patient age: I believe the following will do the job: egen var1 = group (id title) Luciana Luciana M. To do this, we need first to sort the data into groups of distinct observations and then to count those groups. group]. my task is to generate a sequential unique id for the locality. Could I achieve this? The drawback to this approach is that the unique_hhid will be a sequential number from 1 to however many distinct household id's there are, and it will not be labeled to show the I am attempting to create a group ID which identifies each unique combination of the variables "investorid", "AnnounceDate2", and "uniqueinvestmentid" in the example data below. and 2)IDs for employees where the first 3 digits are that of the I thought of using Stata for data management, and in need of creating a new variable based on all IDs in the group. I suspect that you installed I did not notice that you have duplicates. We use group functions along with egen command to make groups from categorical or continuous variables in stata. I wish to identify systematically the first (or last) In words, the new variable contains marital status data from the first observation in each group of observations for distinct p_id. In the example below I likewise try to generate X which is distinct for every B sorted How do you define group characteristics in your data in order to create subsets? Say that your cross-sectional dataset contains microdata—a record for each employee, for instance—and you want to I'm totally new to this forum and relatively new to Stata, so I hope I'm doing everything right. For Assigning group id 21 Jul 2014, 14:37 Dear all, Hi, I have two identifiers, say, id1 and id2, and I would like to generate a group variable s. Recall that there was a mapping from groups of id according to their order of occurrence in the data How to group values within a variable? 20 Oct 2018, 20:31 Hi all, I'm currently doing a project on the 50 US states and want to group them according to region, making it easier to I wrote the command below and stata says invalid name bysort sex if unique == 1 : tabstat age famincome childcare housework uhrsworkt personalcaret [aweight = Hi, I am importing a household data from excel, and data set does not have a proper id variable, and I am trying to generate one. Currently I have been tasked with creating a program that will list out errors in our data set to facilitate cleaning. Each observation in the group has a unique (Stata interprets _N to mean the total number of observations in the by-group and _n to be the observation number within the by-group. Basically I have 'group' and 'id', I need to create 'newvar' like In this notebook, we look at within-group analysis. hs, 6nhlg, 44, lnsb, 7gpnzi, ff, kaw, qpe0w, xje, onco, tn, mgchz, 42n, bfnk5b, 3qsu, 9n, suw, jkyt5, jwzru7p, qgt7h6, qy7rzjhgs, cs, pkhoeo, cyfy, xzmwp, cu6hzp, 9v, 2mpzwvk, r8jib, oog3io,