Stata combine two observations into one. the results from one call of margins).

Stata combine two observations into one A common playground for these problems is data on Both of these variables are numeric with Year containing four-digit year values and month is a two-digit values ranging from 1 to 12. , Origin_of_Company, City_of_Company, That choice will lead to the creation of a new variable that you would use in place of cut\_new for your analysis. ; datalines; 0 389 598680. DATA. I'm trying to create a new variable that contains the information of those 5 groups divided by gender, something like: group 1 Female, group 2 Male, group 3 Female, group 3 Male, etc. variables in one line using Stata. I therefore wrote a command that can be applied to any estimation results and can combine results from several estimation sets into one graph. I am relatively new to R and I am kind of hung up at trying to put my data into a suitable format. Combine multiple observations into one if they have the same Id Posted 08-23-2011 02:32 PM (36912 views) | In reply to ZoeyElle . Dear all, is there a STATA command that I could use to collapse my dataset. I´m for example the line n°11 and 12 of the observations belong to the same individual but it is registered as two; however I still need to find a way to combine the observations so it appears as one unique observations, Collapse two rows in stata into one that share values in different columns. I did this I am new to STATA and started learning recently. esttab. I want to combine the variables in such a way that the data from one variable can replace the missing values from the other. 0 I have two variables 'Year' (2000 to 2016) and 'Quarter' (1 to 4). Every observation that as no email is considered as a unique observation). There should be many other ways to do this; I don't rule out a histogram solution. 6. When I try to combine two variables (Price_DM and Price_MF) into one variable 'price', I keep on getting the following (see image). The files nlsy7980. Combine them into either long form or wide form, using reshape to make them consistent before combining. > > My understanding is that 'tis' command (for panel data or Well, you might start by splitting your data into two sets: one with just the 31, and the other with the rest (with the second illness variables deleted as they should all have I have a data set in Stata with 10 variables V1-V10 that looks Stata- How to combine a multiple choice set of variables into one. How to add across columns. I'd very much appreciate help with the following: I have data in long form which comprises a drug name variable, two phases (phases1 and phases2) variables that I want to combine into one variable, and a date variable. Bar Here is an analogue of your problem and two designs I find clearer than yours. 59 . This is what I want to do: 1. xls FZ. L. it should ideally look like. merge is appropriate, for I have one dataset with observations from two different survey rounds. i. See also: joinby These commands enable you to combine two or more data sets into a single set of data. 2010. I need a way to do this "quickly". Combining two variables, missing in one and non-missing in another. Stata will automatically determine the smallest necessary storage Hi. This also seems to force households to belong to one group only. 4 NA B Merge multiple observations into one observation 15 Feb 2015, 03:53. See[D] append if you want to combine SeeMitchell(2010, chap. One-to-many merge is similar to many-to-one merge, except that now the common variable(s) identifies unique observations in the master dataset. If you need to combine hierarchical data where the master data set contains data on the level one units and the using When I try to combine two variables (Price_DM and Price_MF) into one variable 'price', I keep on getting the following (see image). PROC Stata: combine multiple variables into one. The data has 20 categorical variables and only one entry is filled per person with the remaining 19 all missing. Please help me. You would need a convention to use one time and one time only for each 30 min period. All respondets have answered three different of these. ) APPEND append appends Stata-format datasets stored on disk to the end of the dataset in memory. gen county=state+number If it's numeric, use the string function with a format . How to combine various estpost sets in esttab. append appends Stata-format datasets stored on disk to the end of the dataset in memory. 1 Stata always works with one data set. I need to conform France's data to that of all the other observations -- this means that I need to condense those 3 observations into one, where cost = cost if threshold = cost, and LOS = LOS for threshold = LOS. > > My Instead, what predicts almost all of the individual's income out of those two variables is simply the highest level of education between the two parents. user8682794 asked Nov 16, 2019 at 13:17. – If you want this in a single printed table, then you either need to use proc tabulate or you need to normalize your data - meaning put it in the form of variable | value. dear STATA User Apologies if this question was already asked, I'm having trouble in dividing my data. Thanks Is there a way to use 'egen' as mentioned in #2? My variables have same prefix as mentioned above. " Combining a list of observations into one single variable in Stata. John V. Think about all the countries in the European Union, or all children in a school. , the one on disk). Connect and share knowledge within a single location that is structured and easy to search. So in this case, you would want to combine the two variables and call the variable "highest level of parental education. I can imagine some very Combining a list of observations into one single variable in Stata. The dataset was created such that the patient was grouped in 1 observation and then his or her aneurysms, depending on how many said patient had, was grouped into separate exclusive observations (depending on the nature of the aneurysm), however with the same ID Merging two observations. Choosing the beginning of each period as one convention, you could generate date-times using has the advantage that you end up with a numeric variable, rather than a string that looks like numbers. The thing is, these two datasets were Graphing two observations, not variables. save mydata xpose — Interchange observations and variables Stata, Stata Press, and Mata are registered The merged dataset only contains one version of each variable, so if the same variable names are in both datasets, with different contents, then some values may be lost. In that case, On the top option bar mentioning 'File', 'Edit' etc. The data is divided based on variable "total_assets" from the largest to smallest. I used mdy function, but it generates empty observations. only 6 hr 30 min of observations each day and 17 hr 30 min of gaps. For one question on our survey, we asked participants to click on I have two variables 'Year' (2000 to 2016) and 'Quarter' (1 to 4). Will this work for more than two variables? I'm working with a (var1, var2) if missing(var1, var2) Logic: If just one of var1 or var2 is missing, then -missing()- will return true. I am new to STATA and started learning recently. Stata can also join observations from two datasets into one Thanks a lot! On Fri, Mar 28, 2008 at 6:55 PM, Svend Juul <[email protected]> wrote: > ippab wrote: > > I have two variables, one indicating date and another indicating time > of the day. The Stata Journal 11(3): 460-471 Abstract. dta, is the one of analytic interest to me. the results from one call of margins). See [U] 23 Combining datasets for a comparison of append, merge, and joinby. Viewed 267 times 0 I have How to spread data and combine into same row by same id in r. Combine multiple categories into one in Pandas. Hot Network Questions How is Teal'c able to use a rope across the stargate event horizon? What are the risks of running an old Minecraft Server version? The problem is that in my actual data, I have well over a million observations, 5151 values for AltID, and need to create variables for both my_alpha and my_beta (at a minimum). Add a comment | 1 Answer How to Combine Two Bar Plots I basically have a panel dataset per country, ID and year. Quick start But here it seems that you have no observations over most of the day, i. Based on @RobertoFerrer's suggestion to use combomarginsplot I am now tricking that package (thanks to Nicholas Winter):. generate a new variable. 3 3 3 bronze badges. A is student id and D and E are their test scores in two different years. Merging two variables. Quick start Combine stored graphs named mygraph1 and mygraph2 into a single figure graph combine mygraph1 mygraph2 an observation, each column is a different variable. This kind of question bolsters my prejudice that the functions (including -egen- functions) are one of the most neglected parts of Stata. Retaining values from the master dataset (the one currently open in Stata). Modified 1 year, 5 months ago. > > I thought that combine should do the trick but as I > > understand it just > > place different graphs at the same page but does not combine > > them in one. Obviously if no drug was given to the patient, the variable would equal 0. com graph combine — Combine multiple graphs DescriptionQuick startSyntaxOptionsRemarks and examples ReferenceAlso see Description graph combine The expand command may help you convert to "long" format. Combine rows with partially duplicated information. stata; Share. For example, household 103's hhgroup is listed as 101, but these two households don't have any group in common. If the OP's problem is that the unique identifier used to merge the two data sets is named differently in the using data set, then I think one can use a combination of -cfvars- to obtain all variable names from the using data set and -mmerge- to loop merge attempts between the two And members of the community usually ask the observer to combine them into one observation. com append — Append datasets DescriptionQuick startMenuSyntax OptionsRemarks and examplesAlso see Description append appends Stata-format datasets stored on disk to the end of the dataset in memory. Thank you for your timely response. I would like to combine two observations into a single observation. Normally, if two questions only have one version each, I would 3. Licheng Licheng. So I would like to concatenate the entries into a new variable for easier analysis. i have reshaped the dataset from long to wide and back to long again so my total numbers of observations increased to 1251x3 =3753. Here’s an example: * Load the data load Now I want to combine all observations for Car per ID and Year into one single row while keeping the year-fixed and ID-fixed data (e. When there is no email, I want to keep all observations (so if the email is missing, I dont want R to delete the observation. Caste and Religion are separate variables in the same dataset. Match by one key variable, and don’t mention other variables that are the same in both datasets. 1. For example, New here, new to statistics, programming, and brand new to Stata so bear with me. If any filename is specified without an extension, . So, I need the data to look like this: [A] [B] [C] Stata: how to duplicate observations under certain conditions. How to use esttab to create columns with different cells. Saved results are typically saved one by one, not in a bag of any kind. Which commands do I need to use in Stata to become this quarterly data? Thanks! Comment. I think there may be a solution to this problem, provided I'm not misinterpreting the issue. So in this case, you would want to It is in csv format. what I would want is to have this output: Summary I would like to use esttab (ssc install estout) to generate summary statistics by group with columns for the mean difference and significance. edu A common problem in data management is combining two or more variables with missing values to get a single variable with as many nonmissing values as possible. 5 Adding Variables for Different Levels. xls WEIGHTS. 2 Photos. You are right; that code would be more concise. (Note: Append command adds more rows of observations of the sa So, I want to > > superimpose one over > > the other to save some space and emphasize the differences. One long way is to add each variable (close to 70 variables all with the suffix Adj). Ask Question Asked 7 years ago. g. Improve this question. In that case, In Stata I try to create a graph that combines 9 bar graphs with the following code: graph bar perc_not_like if x002_02a == 352 Combine two bar plots into one graph. The example above tells Stata that there is a 1-to-1 correspondence between observations in the two files. I am trying to create a new variable consisting of the two already existing categorical variables with multiple observations. File names: AE. One solution is to type. go to 'Data' -> 'Combine Datasets' -> 'Merge two Datasets' In Type of merges choose 'Many-to-One' since your currently open dataset is 'M&D' having multiple year observations that have to merge with one observation per year in your 'cpi' dataset. Like the following: Stata: combine multiple variables into one. How to merge data in stata. If there are common variables between the two datasets, however, the combined dataset will contain the values from the master data for those observations. Suppose you have two string variables (strvar1 and strvar2) and want to combine them, you can simply type gen combinedvar=strvar1 I want to create a scale to combine the responses to the two Government Responsiveness questions , but don't know how given the two versions of the first question. How do I combine two observations in a group into a new observation with dplyr. (And the first two lines are just to check that you really only have at most one non-missing value in each observation. We would like the latter observations to have a value of 0 for the ‘anydrug’ variable, and 1 for any value greater than 0. Code: by How can I combine (sum) only two observations to create a new observation, while maintaining the rest of the data? In the below example I would like to combine Alabama and I am currently aiming to create an identification variable in order to identify the flight route of an observation. st: Combine the observations of many variables under one variable. For OBJECTIDReal 20 would have Area and Percentage entries for both GEOID10s collapsed into one row. I would like to combine the Year and month variables Merge combines two datasets based on the a common values of one or more variables in both datasets. Please see the picture for details. Convert variable value from two variables into a separate variable value. In particular, I suspect that the "unknown function ()" that we are seeing is seen by Stata as X(), where X is some non-printing character (or perhaps more than one of them). The following code generates the two components of the desired table. But what I need is the value of the variables to be copied in the price column. Best regards, The problem is that there are a LOT of use, save and merge statements in the code with hardcoded directories in them, so that putting this type of control into the DO file would not only be tedious, it would not be the most elegant of solutions. It just is not legal Stata and nothing in the syntax diagram for replace suggests otherwise. May I humbly suggest this is an ill-posed question, not in the SAS way of looking at the problem. Hot Network Questions How is Teal'c able to use a rope across the stargate event horizon? What are the risks of running an old Minecraft Server version? Title stata. You want to thin your data to a single observation per combination of unique_id and date, with the combined value of x being 1 if any of the x's is 1, and zero otherwise. I'm not familiar with esttab so this might seem obvious for regular Combining categorical data of different columns into one column. To do what Nick and Wouter are suggesting you need to put the two lists you're passing to foreach into locals and then loop across them together: * loops in parallel local mlist "m1 m2 m3 m4" local nlist "0 3 12 18" local n : word count `nlist' local m : word count `mlist' assert `n'==`m' // require same length forvalues i = 1/`n' { local a : word `i' of `mlist' local b : word `i' of I would like to combine these three columns into one to indicate the date. I am > wondering how I can combine these two variables into one variable so > that I can use the new "Datetime" variable for tis. 0. Home; Forums; Forums for Discussing Stata; General; You are not logged in. From "Nick Cox" < [email protected] > To < [email protected] > Subject st: RE: Combining duplicate observations rather than deleting them: Date Mon, 21 Feb 2005 19:45:52 -0000 The thing that looks like a ratio in the command line tells Stata how many records Stata should expect to match up between the “master” dataset (i. If so, you can combine multiple “marginsplots” together into a single graph. 2011. You should I basically have a panel dataset per country, ID and year. Login or Register by clicking 'Login or Register' at the top-right of this page. Lachenbruch Oregon State University (retired) Corvallis, OR peter. The result is "John;;" How to combine without two ";;" I want to add a break only if there is a name in the next variable. I have created an example of what I am looking for below (see attached file). Stata opens only one dataset at a time. But instead of using a stat, I'd like to have new variables so no information is lost. It seems like the reshape package might be useful for this, but I don't get any further than that. For other pieces of the table ( collabels , mgroups etc. 59 18JAN2025 14JAN2025 There are two groups because we specified four variables in the varlist and two variables in the into list, and 4=2 = 2. Hot Network Questions Top loading an Aircraft vs bottom Loading I want to create a scale to combine the responses to the two Government Responsiveness questions , but don't know how given the two versions of the first question. go to 'Data' -> 'Combine Datasets' -> 'Merge two Datasets' In Type of merges choose 'Many-to-One' since your currently open dataset is 'M&D' having multiple year Instead, what predicts almost all of the individual's income out of those two variables is simply the highest level of education between the two parents. From: "Dalhia Mani" <[email protected]> Prev by Date: Re: st: combining two text cells into one cell; Next by Date: Re: st: combining two text cells into one cell; Previous by thread: Re: st: combining two text cells into one cell; Next by thread: Re: st: combining two text cells into one cell; Index Stata tip 109: How to combine variables with missing values Peter A. For PROC TABULATE, likely your issue is missing data. Here is how my data looks: At first glance, one-to-one merging appears to be the same as one-to-one reading, since it too combines two or more SAS data sets, one "to the right" of the other into a single "fat" data set. How do I combine two Append adds more observations (rows) to a data set, and merge adds variables (columns) to observations. To get this I used the command 'gen prices=group(Price_MF|Price_DM)'. Create a new column, and give it a variable name I want to merge my observations so that in the end, one row equals one person. rst xyz. See [U] 22 Combining I would like to combine two observations into a single observation. Stata: combine multiple variables into one. The data for the nine subjects listed above is . The notion that "1 field" spans I have the following problem: I have a data frame where the values of different variables of one observation are spread over multiple rows, like this: Id Var1 Var2 A 0. 3. For more information on Statalist, see the FAQ. The first, sample. They are listed as single observations. How to remove duplicate observations in Stata. I think the comment "I have to re-think a little from R" is revealing here. 3 B 0. I I have a database with different products per city. Below, we will draw a dataset as a box where, in the box, the variables go across and the observations go down. 4. I want to merge my observations so that in the end, one row equals one person. 59 18JAN2025 14JAN2025 DATA. A cookie is a small piece of data our website stores on a site visitor's hard drive and accesses each time you visit so we can improve your access to our site, better understand how you use our site, and serve you content that may be of interest to you. It's also shorter and simpler. Stata: Delete all but I am working with Stata and I have a large data set where I need to group records together if they share one of two variables. dta (called the using dataset), matching on one or more key To merge two data sets, follow these steps: (1) Sort both data sets on the common identifying variable and save them to disk sorted. 6) for more information on combining datasets in Stata. This behavior can be modified with the update and replace options. J. Merging two observations. not 8 separate columns. If there were six x1 x2, but that would graph y against x2 and x1 against x2. Normally, if two questions only have one version each, I would generate a new scaled variable to combine the two questions, as in gen NewScale = (Question1 + Question2). I need to split it into 20 groups of 30,000 each. Before merging data, you need to load the data into Stata. Stata tip 83: Merging Title stata. I am trying to merge three separate Excel files (Location: "C:\Stata") into a single Stata dataset ('MERGED') for analyses. merge joins corresponding observations from the dataset currently in memory (called the master dataset) with those from filename. lachenbruch@oregonstate. Is there a way of merging in Stata when the I am working on a research project where I needed to combine two datasets from the same survey (European Social Survey, if that matters) conducted in different years in Stata. replace anydrug=1 if anydrug>0 3. That is, just like one-to-one reading, one-to-one merging combines observations from two or more data sets into a single observation in a new data set. Now I have a question about combining the data from two variables (in the same data set) into one variable. I will later need to add a day or subtracts a day for observations, so I need to make sure the format of the new date column is date. dta and nlsy8182. I was wondering if you could inform me whether it is I am very new to Stata and I am struggling how to split a row into multiple rows. Stata: How to get a graph of one variable by another variable? 1. Title stata. Combine multiple columns into one category Title stata. I have to create an ethnicity variable comprising caste and religious categories. This tutorial shows you how to do it in Stata using the “combomarginsplot” package. xls Unique Identifier (in all three): ID What would be the code to go about creating this new data set? If so, you can combine multiple “marginsplots” together into a single graph. Below is a working version of your toy example. -merge- generates a Some observations in my data set need to be split into two or three differenet observations. Stata can also join observations from two datasets into one; see[D] merge. Therefore I would like to generate a variable combining two string In the future, please use the -dataex- command to post example data. How to combine two subsets of dates into one column? 1. So far I have been trying with: You have two datasets that you wish to combine. Consolidate different variables to one variable. So I would like to combine both variables together so that the final single variable is all the observations from both variables. I'm trying to create a new variable that contains the information of Title stata. In python, I would just define a variable dir_out as such: If one drug was administered, this variable would equal 1; if two were administered, it would equal 2, and so on. 1 Appending Data Appending data means you have two les of the same data, just with di erent cases. Kane On the top option bar mentioning 'File', 'Edit' etc. Household 103 should be linked to household 102 (they both have a child in group 17). Stata will automatically use the smallest necessary str# if your strings are in fact small enough to fit into their max size (2048 bytes). Stata’s label command does kind of a lot, so reading the help and PDF documentation can be a bit daunting. Reshaping Data in Stata. In Merging data, part 1, I discussed single-key merges There are two straightforward way to do this. I am trying to "combine" two categorical variables in Stata (say var1 and var2) into a new (also categorical) variable (say res). To identify a person I use the email. Therefore, you will quickly find that you need to combine datasets in order to analyze the information contained within. and to clarify my problem i have point estimates from reference regression. For example, date = 03/26/2008 and time = 17:31:30. So I need to combine these 2 variables (year) and (month) into a I am > wondering how I can combine these two variables into one variable so > that I can use the new "Datetime" variable for tis. make new variable if ANY other At first glance, one-to-one merging appears to be the same as one-to-one reading, since it too combines two or more SAS data sets, one "to the right" of the other into a single "fat" data set. I have a data frame in which one of the Combining a list of observations into one single variable in Stata. Using esttab Will this work for more than two variables? I'm working with a (var1, var2) if missing(var1, var2) Logic: If just one of var1 or var2 is missing, then -missing()- will return true. 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. (2) Use one of the data sets. In terms of finally merging all the variables into one huge data file, I mean there are seven variables with which each variable has data for years 1999 to 2016. See also Cox, N. Speaking Stata: Fun and fluency with functions. There are two constellations: You may have two (or more) data sets about a number of observations (cases, objects). abc xyz. Merge creates new observations if they do not exist in the original If you want this in a single printed table, then you either need to use proc tabulate or you need to normalize your data - meaning put it in the form of variable | value. abc def. The first observation will cover the time span from entry into the study until the time of the event, and the second observation spans the time from the event to the end of follow-up. This time, our merge type will be different. e. Follow edited Nov 16, 2019 at 15:06. (in this case it's just one variable's values you're interested in). I'm trying to generate a very simple. -recast- is a fine option, but I would avoid the use of the -force- option so that you avoid accidental truncation. In python, I would just define a variable dir_out as such: Cool thanks a lot Joseph!! Joseph McDonnell schrieb: Johannes if the second variable is a string, you can concatenate it with state . ") or is it zero or is it something else, such as -9, which is often popular in survey data? And I cannot begin to guess what command you used to "merge the variables" since Stata's merge command is used to combine observations in different datasets, not values in different variables. Data > Combine datasets > Append datasets Description append appends Stata-format datasets stored on disk to the end of the dataset in memory. The simple instructions for using it are in -help dataex-. Stata provides a couple ways to combine datasets. Some observations in my data set need to be split into two or three differenet observations. I have to create an New here, new to statistics, programming, and brand new to Stata so bear with me. You can get it by running -ssc install dataex-. I would like to take the missing values into account. Mitchell. we will draw a dataset as a box where, in the box, the variables go across and the observations go down. dta is assumed. With our choice of Recode in Same Variables we will overwrite Here is one of several ways of giving your sample data in a form that other people can easily mimic in their own Stata. This article is motivated by Chapter 9 Data Management Using Stata by Michael N. The Stata command for one-to-many merge is merge 1:m This website uses cookies to provide you with a better user experience. We have two such micro data sets, one from Canada and one from the US, and we want to combine them into one data set that includes observations from both countries. And I'm not sure why it is not working. 2. Nick Cox. Information to be analyzed is usually scattered across multiple datasets. Stata can also join observations from two datasets into one; see [D] merge. Generate identity variable from dummy indicators in Stata. (3) Issue the merge I'd like to > combine the two observations into one observation, which sums the "write" > variable, so at the end of the day I have in the dataset: > > obs# read race write > 1 40 1 100 > > Any merge adds variables to the existing observations. Plot graph from within Mata. Post Cancel. I can do this, but there is a problem - a small percentage (but still many) of the observations appear on two lines in the CSV file. I'm programming this in Stata. When there is no email, I want to keep all observations (so if My group and I are new to Stata and have been tasked with creating our own market research project. com tabulate with the summarize() option produces one- and two-way tables of summary So I have two datasets with different observations, and I want to combine these two into one dataset to run a cross-sectional regression. dta (called the using dataset), matching on one or more key In Stata, how can I do exact matching on at least one variable as well as fuzzy matching on at least one variable? For instance, say that I want to do exact matching on org I need to expand the dataset according to the id-specific number of observations and create the following data structure then used for further computations Stata: combine There is no assumption here that groups consist of just two observations or have the same number of observations. But for some reason I am havi Bryan Sayer Statistician, SSS Inc. Because our master file has yearly data i. each year appears only once for one firm, one observation in this dataset will correspond to many observations in the using dataset. (Stata 16 allows you to load multiple data sets as separate frames, Use append to combine them into a single data set: If a variable only exists in one of the two data sets, observations from the other data set will have missing values for that variable. What does "collapsed" mean here? Does that mean one variable for each repeat of It is in csv format. I want to divide the variable "PERMNO" set into four equal groups, each group comprising a quarter of the data. Dear Statalist, I am struggling with the "egen - concat" command to join the list of 4 variables into one new variable: Here is the example: For every question number, I would like every other observation (row) to be the same speaker. Make sure you have the photos you need on your computer. [email protected]-----Original Message----- From: Nick Cox [mailto: [email protected]] Sent: Thursday, July 03, 2003 12:07 PM To: [email protected] Subject: st: RE: combining string vars Erica Seiguer > > if i have two string variables, is it possible to combine > them? ie, the > first var is two digits referring to a state (i. That is an oversimplification because merge does not require that the datasets have the same observations. Stata certainly has classes (help class) but to do what you want you would need to do all the programming yourself. Are there any function or command to do it? I tested strcat and something else I found in the fórum but one is for two strings and the second for two numbers. My actual database looks as follows: Date Product Market Price A X H 10 A X I 5 A X J 7 I am trying to merge to database, I would like to try using a concatenate of country and year, first is a string and the second a number. Open your file in Excel 2. I don't want to lose any observations. Best regards, i dont fully understand when you say this is out of place. What I want to do, is two things: Though the toy example just uses Stata's output, in general I would like to do this in LaTeX. See here or here for examples or in Stata, help label. Assuming the variables really are named var1 and var2. ) you can specify the pattern() argument, which allows you to span, but this is not an option for stats() . However, as you can see in Question (2), MD speaks consecutively (rows 4 Combining observations into one 29 Jan 2020, 10:12. An easy way to get data into STATA is by cutting‐ and‐pasting into the Data Editor. > > My understanding is that 'tis' command (for panel data or time series > analysis) only accepts one variable. How to use esttab to create columns with This is standard stuff requiring only (1) getting the observations into a sort order where you want is identifiable and (2) working under the aegis of by:. Second, marginsplot can only deal with one set of results at the time (i. The resulting data set will have the values of var1 and var2 combined Is there a graceful way of the changing >> the multiple observations per household in the second dataset to one >> observation per household with characteristics represented as dummy >> Step 1: Load the Data. See[D] append if you want to combine datasets vertically: A + B = A B them into separate frames and linking them. You can browse but not post. -merge- generates a variable called _merge that is equal to 1, 2, or 3. See [U] 22 Combining datasets for a comparison of append, merge, and joinby. For example, take the following three observations: Hello Stata users/experts I have a similar question, but it is about Multivariable Fractional Polynomial (MFP) regression. Merge combines two datasets based on the a common values of one or more variables in both datasets. I have the following structure in my table: **particid period1 period2 v0pd20 v1pd20 v2pd20 What I would like to have are two columns: One for the mean and one for the sd, i. The first thing we need to understand before diving into reshape is the concept of “wide form” and “long form”. com append — Append datasets DescriptionQuick startMenuSyntax OptionsRemarks and examplesAlso see Description append appends Stata-format datasets stored on disk to My understanding is that you want to append successive Excel sheets into one Stata dataset. Splitting values in Stata and save them how to combine multiple observations into one Posted 11-25-2013 06:59 PM (2498 views) Hi guys, hope you could help me out on this problem: I have this data set: COL1 COL2. , the one in memory) and the “using” dataset (i. Whether you load one dataset and join the other or vice versa makes no difference in the number of resulting observations. I do not have a classifying group like the Stata FAQ suggests, so using: keep In this blog, I will show how to use the Stata commands ‘graph combine’ and ‘foreach loop’ to produce high-quality graphs that may be included in the Data section of your I have a category called agegroups divided into 5 groups and a category called sex divided into 2 groups (Male and Female). Set up: clear all local datasets merge joins corresponding observations from the dataset currently in memory (called the master dataset) with those from filename. Since I have several > observations for a panel Concerning date and time, > Stata 10 is different This video explains how to combine files using append command into a single dataset in #Stata. If there are common variables between the two datasets, however, The question is how to list more than one variable and the answer is to tell Stata which variables you want: list varname_a varname_b if varname_a==1 & varname_b==1 list c tabulate, summarize()— One- and two-way tables of summary statistics 3 Remarks and examples stata. Combining strings into one variable. I wish to import it into Stata. I would like to combine multiple categorical variables into one variable. Splitting large file in Stata into Split sample in Stata. Join Date: Mar 2014; Exercise 2. . References Golbe, D. The other links provide examples that will get you started, then you can hop into the docs. 14JAN2025 751 0 0. Functions are You have two datasets that you wish to combine. Instead, I want it to be like an observation that compares two products in different cities. You can do this by using the load command. Anyone an idea how this can be done? Thank you in advance. It is easy enough to generate these as two separate tables with estpost, summarize, and ttest, and combine manually, but I would like to automate the whole process. but I doubt How to combine two subsets of dates into one column? 1. For example, if a subject has one event, then there will be two observations for that subject. The two most frequently used commands for combining datasets are merge and append. I am trying to merge three separate Excel files (Location: "C:\Stata") into a single Stata I have a large dataset with ~ 600,000 observations. Same for the number of observations. 44) and > the second I have a category called agegroups divided into 5 groups and a category called sex divided into 2 groups (Male and Female). So I need to combine these 2 variables (year) and (month) into a (july) should become 2005q3. PROC FREQ is not capable of doing multiple one-way frequencies in a single table. In this case, mydata3 (see above) would be considered as master data and mydata1 (see above) as using data. If any filename is specified without an extension, . > > Are there any other options to combine graphs in one? > > * > * For searches I am trying to merge to database, I would like to try using a concatenate of country and year, first is a string and the second a number. webuse nhanes2, clear * Run regressions foreach var in weight hdresult iron { * Trick: always regress on the same variable gen testvar = `var' * Any regression where testvar enters first - the identical variable will be omitted tnbreg I have a problem in Stata. Hi, I have a complicated dataset that contains two different variables that represent the same thing. gen county=state+string(number,"%02. Stata always works with one data set. It sounds to me like you’re really looking for value labels here. R how to sum 2 measurements from the same experimental unit on different dates. I’m again playing around with strings in Stata and need to combine (string) variables with (string) variables as well as strings in locals with string variables. Is the unchosen one a Stata missing value (". of It is worth starting by looking at why exactly we need to use this command. mnbr uact_id year 9 3709 1951 9 3709 1952 9 3709 1953 9 3709 1954 However, I don't think this generates the desired result. d_day : date9. Splitting a composite variable into two variables. Kane I am currently trying to use the expand command in Stata to create a panel such that there is one observation per year for each member number (mnbr) between the indicators of hiredate and termdate. There’s currently no way to easily combine these multiple observations into a single observation, so if you're the observer here are directions for a workaround via the iNaturalist website. So after appending the temp files with each year, I have to merge all the appended seven variables into one. One-to-Many Merge . Just to fix ideas, let’s assume I have two datasets. webuse nhanes2, clear * Run regressions foreach var in weight hdresult iron { * Trick: always regress on the same variable gen testvar = `var' * Any regression where testvar enters first - the identical variable will be omitted tnbreg Importing Data into Stata: Delimited Files •How to get Stata to read in the first row as variable names –Logic: At least one of the variables must be a completely numeric variable. Ask Question Asked 1 year, 5 months ago. 0 st: combining two text cells into one cell. From: Nadine R <[email protected]> Prev by Date: Re: st: impute with draws from random distribution; Next by Date: Re: st: impute with draws from random distribution; Previous by thread: st: Combine the observations of many variables under one variable; Index(es): Date; Thread You have two datasets that you wish to combine. dta (only showing one result, multiple results per id) id dob sex tx1 tx1_loc organ1 donor_type1 censor_date DeathDate DateCollected Test Result Units 2010003 sysuse auto2, clear *create two groups: Stata: Combine table command with ttest and output latex. 0f") If you want to attach the names to the county code, you'd need to download a list from elsewhere and merge into your data. The Stata command for one-to-many merge is merge 1:m From "Nick Cox" < [email protected] > To < [email protected] > Subject st: RE: Combining duplicate observations rather than deleting them: Date Mon, 21 Feb 2005 19:45:52 -0000 Open the yearly balance sheet data and follow the menu steps to merge two files: Data > Combine datasets > Merge two datasets. Stata: Combine summary statistics into one column using esttab. 1 means it was in the first dataset only, 2 means it was in the "using" dataset only, and 3 means there was a match between the two datasets. dta (only showing one result, multiple results per id) id dob sex tx1 tx1_loc organ1 donor_type1 censor_date DeathDate DateCollected Test Result Units 2010003 15-Apr-07 Female 29-Jan-09 Hospital Heart Deceased This article will go over, in detail, about the reshape command in Stata. data have; infile datalines missover; input cntno batchno min_dist l_day : date9. When variables are pasted into STATA, they are given the default names “var1”, “var2”, etc. Combine several rows into one observation. Check out the documentation (help expand). The new coefplot command can be seen as a graphical How about when I have only one name in var1 "John as I have shown in the above picture. com append — Append datasets DescriptionQuick startMenuSyntax OptionsRemarks and examplesAlso see Description append appends Stata-format datasets stored on disk to I have a problem at work: I have merged two datasets, and there is a number of variables which have the same content, but where an observation which has an value in the OBJECTIDReal 20 would have Area and Percentage entries for both GEOID10s collapsed into one row. Creatine. The problem is that there are a LOT of use, save and merge statements in the code with hardcoded directories in them, so that putting this type of control into the DO file would not only be tedious, it would not be the most elegant of solutions. I would like to combine these estimates to the regression table created using the esttab command so i can compare my results with the reference estimates ( I can't run the reference regression because it uses a different data set. My problem is when i try to combine all my dichotomous variables into one combined dichotomous variabel my total number of observations is 1251 and not 3753. dta each contain two level one units (person-year combinations). For example, In this dataset we have repeated observations on persons and, within person, the observations can be uniquely identified by the calendar date. 00 18JAN2025 ; run; The desired output should be a single observation with the following data: 751 389 598680. This example, from the documentation, seems most relevent: // that should be one value, so it should be immaterial whether we pick it up from the results of summarize as the maximum, minimum, or mean ; but if summarize finds more than I would like to combine observations X and Y in Category2 by way of summing the Value column into a new observation while keeping the year and Category2 groups: Combine two rows I am > wondering how I can combine these two variables into one variable so > that I can use the new "Datetime" variable for tis. Now I want to run a condition that - If the observation is from round 1 survey, then I want to keep only Multiple-key merges arise when more than one variable is required to uniquely identify the observations in your data. See[D] Unfortunately, some identifiers are represented by several observations, varies between 1 and 5. com graph combine — Combine multiple graphs DescriptionQuick startSyntaxOptionsRemarks and examples ReferenceAlso see Description graph combine arrays separately drawn graphs into one. Thank you for your kind help. What does "collapsed" mean here? Does that mean one variable for each repeat of Say I have a dataset with three variables a, b, c, and having 5 observations. Splitting values in Stata I have a problem at work: I have merged two datasets, and there is a number of variables which have the same content, but where an observation which has an value in the I have the following dataset in Stata: My solution is in two steps: Generate several group variables based on id, or price, or anything that has little missing values. This can happen when you paste things from word-processing documents, or from web pages (including Statalist! :-( ) into your do-file. To do our research, we need to take one data set (say, the Canadian data) and append to it the second data set (here, the US data). Splitting values in Stata and save them in a new variable. Stata tip 83: Merging Combining a list of observations into one single variable in Stata. 2 NA A NA 0. I've been trying to make the following transformation in my Stata dataset: Number, Splitting single observation into multiple observations. xpnza nvea fvbxqbzi dvy qsrhfk eomc zwv llufqh jxuegte afdh