Stata if any. replace for replacing the values of an .

Stata if any Thus, we want Stata to sort the data based on firm first before we perform any other command. But there is a better way to deal with missing values: the missing() function. I need to filter the rows if any variable is named "R45851" if not I do not need the whole row enter image description here Jan 26, 2022 · Stata is sharper than some other software in regarding functions and commands as different beasts. . If the string of "investor_name" is a match with one of the others, then the investor name is correct. For example, we can count observations for cars with prices above 5000, but only execute this command within rows 1 to 30: count if price>5000 in 1/30 This command will show that there are 15 cars with prices exceeding 5000 in the specified range. Description egen creates a new variable of the optionally specified storage type equal to the given function based on arguments of that function. Learn how to create new variables and transform existing variables. I can do this using the code below: replace anyadl = 1 if Stata programming is an advanced topic. StataCorp provides this manual “as is” without warranty of any kind, either expressed or implied, including, but not lim-ited to, the implied warranties of merchantability and fitness for a particular purpose. Unicode strings integers ≥ 0 I am trying to create dummy variables in Stata that are 1 if any of the variables dx1 through dx25 start with a specific string. replace for replacing the values of an the number of display columns needed to display the Unicode string in the Stata Results window A Unicode character in the CJK (Chinese, Japanese, and Korean) encoding usually requires two display columns; a Latin character usually requires one column. STATA allows us to specify conditions and limit counting to a certain range of rows. b, . Identify: By using the missing () function to identify missing values in variables we count the number of missing values in a variable. You probably need something like -strmatch()-. This means only missing values do not apply to this condition. Then I have another local variable that I want t May 8, 2023 · Dear Stata Forum, My query relates to combining the if and the and (&) operator in creating a new variable. Hi r/Stata. the other variables contain open string answers and I want to generate x=1 if any answer for the variable is given. I need to create a variable z = 1 if c or b or a == 1. The most common example of a complex string, however, is a date: “15 Jan 1992” contains three pieces of information—a day, Sep 17, 2018 · I'm trying to assign a conditional value to a local macro variable in Stata 15. Values that do not meet any of the conditions of the rules are left unchanged, unless an otherwise rule is specified. Stata is a complete, integrated statistical software package for statistics, visualization, data manipulation, and reporting. But if that doesn't hold in all of your data, then there is no solution to your problem as any of the various values of unrate or dt_survey_q that co-appear with the keyed value of trend would Nov 16, 2022 · Stata codes missing values (. In such situations, it can be distressing Learn how to recover unsaved DO files in Stata with this step-by-step guide. c, , . So far, I have gen newvar =99 and replace Dec 4, 2024 · Stata Syntax: A Guide to Operators and Expressions Understanding Operators in Stata: Arithmetic, String, Relational, Logical, and More An operator is something that takes on one or more values and … Mar 6, 2012 · I'm using Stata, and I'm trying to compute the average price of firms' rivals in a market. You can use exok within generate() to treat extended missing values as complete when creating missing-value ident Feb 10, 2021 · Hello, apologies if something is done incorrectly, this is my first time posting to STATALIST. I would like to create a list of which variables are empty and (if possible) to drop them. This interpretation of #1/#2 differs from that in numlists. Same for the number of observations. You can type help dta_contents to see a description of these datasets. gen xbig = (x > 1000) The first statement keeps all the observations for which x > 1000 or x is missing. For example consider I have three variables a, b, c. I am looking to create a new variable based on the condition of other variables. Also, how is this treating missing variables? Any help would be appreciated. May 29, 2018 · This will prevent Stata from and-ing the last term of A with the first term of B rather than and-ing all of A with all of B. Stata Nov 24, 2014 · Hi I am having trouble excluding observations, I am trying to use the IF function, basically I trying to tell stata to exclude standardized score of one of my variables, i want it to remove those which are lower than -3. The allowed values for the variable index var and the observation index obs are -nvar <= var < nvar and -nobs <= obs < nobs Here nvar is the number of variables defined in the dataset currently loaded in Stata, which is returned by getVarCount Learn how to effectively use wildcards in Stata's "if" statements with this comprehensive guide. I know that I can do this using something like the following but for Nov 16, 2022 · Stata installation guide These steps will guide you through the installation process, from downloading Stata to license setup. There is no such thing as dropping observations of a particular variable only. If you want a certain string (i. You can read more about this in [U] 12. If any filename is specified without an extension, . Clear removes macros or any value labels but drop all only deletes the variables. if inlist(nid, 4580, 4250, 165101, 4679, 236205, 419098, 438439, 11240, 317089, 430032, 3716, 164729) { capture confirm If you are using Stata 13 and want to save a file so that it may be read by someone using Stata 11 or Stata 12, simply use the saveold command. String processing is fairly easy in Stata because of the many built-in string functions. It has a minimum abbreviation of g. How to recode variables in the statistical software Stata, using the commands generate, replace and recode. At 16:15 03/04/2005, Louis wrote: Dear All, Can the -if- qualifier be used with a string variable? If so, how is it done? I gave the following command, and had the shown result: . 1. 12. In addition, dropping all the observations with missing values yourself in order to go complete case analysis without diagnosing the mechanism underlying their missingness, is a (very) risky methodological approach, as you may (easily) end up with a biased Jul 13, 2020 · My naive expectation would be that Stata drops the excluded observations. For example, if I want to reset var1 and var2 based on CONDITION1 and CONDITION2, I've so far only been able to use redundant code: . I am working on a dataset which, I have discovered, has a lot of variables with 0 observations. inrange () and its fraternal twin inlist () permit various tricks. Stata or StataNow We show screenshots and instructions for StataNow, but any differences if you do not have StataNow are slight and will not cause confusion. A range #1/#2 refers to all (real and integer) values between #1 and #2, including the boundaries #1 and #2. (There were still less than thirty observations in some values of the country variable in several years) As I thought they would work, I don`t know what I actually did, which is not really helpful so if someone might explain to me what`s wrong with my attempts Aug 4, 2015 · You can identify duplicates using Stata's 'duplicates' command. e. Let's say 281, 282, 283, and 284. Stata can manipulate data, calculate statistics, and run regressions. Jul 6, 2023 · How to recover an unsaved Stata file? Stata is a powerful statistical software package widely used by researchers and analysts for data analysis. Naturally, if you prefer, you can use anymatch (). The following example of data contains the first five odd and first five even positive integers, along . I have a local variable that only can have two values; "o" or "u". We have created a small Stata program called mdesc that counts the number of missing values in both numeric and character variables. I am trying to conduct a poisson regression: Code: I want to do something like "list if any of the 4 variables have values that are not equivalent, ignoring missing ". You can achieve the desired result/behavior (from a user perspective) with combining two commands instead of clear and drop all Suppose that you are working on an analysis or a simulation and that you need to clear out Stata’s memory so that you can impute different values or simulate a new dataset. Some Stata users live productive lives without ever programming Stata. Same as in Stata ? matches zero or one instance matches zero or more instances matches one or more instances Aug 2, 2018 · Drop conditional on a date DDMMYYYY format 02 Aug 2018, 11:58 Hi all, I have patent data where the date is given in DDMMYYY form. (Indicators that are 1 or 0 are very much more useful than those that are 0 or missing -- or 1 or missing. Within Stata’s multiple-imputation commands, an incomplete value is identified by the system missing value, a dot. = citalopram, or sertraline, etc. Now I must type as many command lines as certain conditions. Various functions of egen will loop for you. Either way, run -help dataex- to read the simple instructions for using it. We can also use a wild card to drop similar kinds of variables or var I have 3 groups i need to calculate seperately and i thought the if statement would work fine. Aug 13, 2014 · replace asset_group=below10m if assets < 10. mdesc missings Please kindly give me any answers or comments to me! Oct 31, 2013 · I think egen might help me here, but for whatever reason I can't quite figure out the right syntax. On the other hand, programming Stata is not difficult—at least if the problem is not difficult—and Stata’s programmability is one of its best features. Case 1: Identifying duplicates based on a subset of variables You wish to create a new variable named dup dup = 0 record is unique dup = 1 record is duplicate, first occurrence Nov 16, 2022 · Just as Stata returns 1 for true and 0 for false, Stata assumes that 1 means true and that 0 means false. z) larger than any nonmissing values, so, literally, x >1000 is true. It works because strpos () returns zero for no find and a positive number for a find and non-zero counts as true. ation. For example, I have an ID which equals 280. While there is no formal standardization of the syntax for a regular expression, there is a general consensus on the basic elements of the syntax. Technical note If the expression refers to any variables, their values in the first observation are used unless explicit subscripts are specified. tabulate group the separator for or. keep if x > 1000 . The if command makes one decision based on truth or falsity of what is tested. g. We can also drop all the variables with the command: drop _all But remember, this is different from Clear command. We'll walk you through a practical example that solves the problem of checking variables I'm a SAS user new to Stata. Super important: Missing values in Stata are essentially infinity, so higher in value than non-missing values. Dec 16, 2016 · 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 d e if varname_a==1 & varname_b==1 That could be all of them: list if varname_a==1 & varname_b==1 list That is all documented under help list. That test need not make any reference to variables in the data. How do I do this? Example and analysis of the problem Let us be clear about what Jan 24, 2018 · You can't do this. Since Do any of you know the command for examining the value in one variable is equal to any value in another variable in STATA? Jan 8, 2019 · Dear all, I am trying to compare a string variable with several others for similarity: The goal is to compare variable "investor_name" to the company names listed in variables firm1 – firm3. keep if facility==bir bir not found r (111); "facility" is a string variable and "bir" is one of the values "facility" takes. Stata can store strings up to 2-billion characters long and can store strings containing binary information, inc uding binary 0 (\0). Includes instructions on using the drop if missing command, as well as tips for troubleshooting common problems. However, if you have Stata SE and want to run Stata MP see the instructions below. Nov 16, 2022 · Regular expressions use a notation system that allows for matching complex patterns of text with minimal effort. If you type . StataCorp may make improvements and/or changes in the product(s) and the program(s) described in this manual at any time and without notice. 29 | zforaging <=3. replace var2 = 'Y' if CONDITION1 & CONDITION2 In SAS I would write In this article, we’ll explain how to create new variables in Stata using replace, generate, egen, and clonevar. ) then the egen calls at the beginning of the code will ignore them, which is what you want. 1, -dataex- is part of your official Stata installation. The first condition refers to a dummy variable (a) --> x=1 if a==1. Jan 9, 2022 · Detail: keep is a command, not a function. Nov 29, 2022 · I have this piece of Stata code that I am trying to translate into python. We can use drop and keep commands to drop specific variables or keep certain variables. I have found two possible sollutions, both of which work in a sense, but not for my purposes. If we wanted to include just the valid (non-missing) observations that are greater than or equal to 4, we can do the following to tell Stata we want only observations where rep78 >= 4 and rep78 is not missing. Mar 26, 2019 · Hello STATA Experts: I am trying to create a new variable based on the existence of certain conditions in two existing variables (see code below). I couldn’t use regular expressions because the strings I’m working with happen to contain regexp control characters. Description append appends Stata-format datasets stored on disk to the end of the dataset in memory. If and only if the cells you're calling empty in fact hold values for numeric missing (a stop or period . You can regard this as pedantic if you wish but Stata terminology is pertinent on Statalist; Description if evaluates the expression, and if it is true (evaluates to a nonzero number), if executes the statement or statement block that immediately follows it; otherwise, if skips the statement or block. The functions are specifically written for egen, as documented below or as written by users. So from the outside, the Stata's behavior for keep and drop is somewhat inconsistent, because other Stata commands don't differentiate between varlist and the if -qualifier in the same way that those commands do. 000000 you effectively are asking Stata to replace the content of the variable called below10m if the condition is met; Stata correctly complains that it can not find said variable. binary information. I'd like to create a new variable that takes a value of 1 for all observations in a group if, for Title stata. assert works directly with missing () or !missing () sysuse auto assert !missing (mpg) replace mpg = . keep works the same way as drop, except that you specify the variables or observations to be kept rather than the variables or observations to be deleted. combination of characters) to be entered, you need to enclose them with " ". If not, run -ssc install dataex- to get it. zforaging>= -3. * Find the location of your DO files. Learn their usage step-by-step instructions. What does this mean? If there are any missing values in the date_day variable, writing just date_day >= 26 will include them -> which we do not want! Stata’s treatment of missing numeric values in expressions is clear: numeric values behave like infinity. This manual is an introduction to Stata’s basic features, covering the applications and functions that Being new to Stata is fine but makes it important to read the sticky post here on how to help us to help you. r stands for return as in returned results, e stands for estimation as in estimation results, s stands for string, and, admittedly, this last acronym is weak, n stands for null. 29 I am doing something wrong? Nov 16, 2022 · This FAQ explains how to install Stata or StataNow on a network drive. It appears to be dropping most of the cases for "Fathers". The inlist command in Stata can be used for both the string and numerical values Let’s replace the variable “make”, which was the string, with the rep78, a numerical variable, to summarize the price, mpg, and weight. Remarks and examples Aug 7, 2018 · What precisely is an example of the same if condition? There are two syntaxes because there are two quite distinct operations. The if qualifier should do everything that you want it to do. Mar 1, 2018 · The codes I tried were accepted by Stata but didn`t provide the results I wished for. However, some care is needed whenever numeric missing values could appear in a relational expression. ) (You didn't mention strings; I guess you don't care about strings. You are not interested in saving any of the changes you have made to the dataset in memory—you would just like to have an empty dataset. Observations are numbered sequentially from 1 to N. The two primary commands used for this are generate for creating new variables. Nov 16, 2022 · How do I create a variable recording whether any members of a group (or all members of a group) possess some characteristic? Nov 11, 2016 · There are ways to make Stata loop through the if command (you would have to create a loop that iterated through all of the observations), but at least in this case, I'm not sure that would make any sense. Data ¶ This class provides access to the current Stata dataset. Command syntax This chapter gives a basic lesson on Stata’s command syntax while showing how to control the appearance of a data list. * Use the `recover` command to restore the unsaved DO file. Stata calls the list of variables that follow the command the marginslist To appear in the a variable must have been specified as factor variable in the model To obtain the average predicted value of bmi at different values of region Description set seed # specifies the initial value of the random-number seed used by the random-number func-tions, such as runiform() and rnormal(). Description recode changes the values of numeric variables according to the rules specified. The code could look something like . Type 'help duplicates' in the command window to get information on the syntax and some examples. Even if the e (sample) function is a "looking back" command, there should not be any differences between the two approaches, if I understood correctly. INTRODUCTION Stata is a powerful statistical software package, used by students and researchers in many fields. Say that variable group takes on the values 1, 2, and 3. Nov 16, 2022 · Fast. Variables are designated by variable names. 123, 453, 859, 205). , . This statement can lead to problems. Pat generate parentfigure=. a, . After all, you do not need to know how to program Stata to import data, create new variables, and fit models. Learn how to use logical operators to select subsets and subgroups of the dataset. Jun 3, 2016 · I want to make antidepressant=1 if ANY variable in the dataset (across the row) equals any of these drug codes (e. For example, 06jun2006. All variable and observation numbering begins at 0. Currently, the variables only have a value of 1 if it applies to the respondent, otherwise it is missing. the name of a variable created by frlink that links the current frame to another frame any variable (string or numeric) in the frame to which lvar links; varname abbreviation is allowed any numeric value if var is numeric; any string value when var is string range of var, plus unm frval(frm,var,i) Description: programmer’s version of frval() A much closer equivalent of the traditional or is not the '|' operator, but the inlist () function: if inlist (car, "red", "green", "blue") . Example datasets Stata's help files and PDF manuals include many worked examples that rely on datasets that either are installed with Stata or can be downloaded from the Stata website. Not sure what is wrong here. egen is a command. That's why the double quotes are needed to underline that you are looking for literal string values. com> Prev by Date: st: repeat same commands over hundreds of files Next by Date: st: RE: repeat same commands over hundreds of files Previous by thread: st: remove special characters from string To: < [email protected] > Sent: Thursday, March 12, 2009 11:22 PM Subject: st: Re: How can I check that a variable exists? Using logs in Stata When you work on an analysis, it is worthwhile to behave like a bench scientist and keep a lab note-book of your actions so that your work can be easily replicated. * Save the recovered DO file to a safe location. com> References: st: remove special characters from string From: Skipper Seabold <jsseabold@gmail. 1 Data and datasets Data form a rectangular table of numeric and string values in which each row is an observation on all the variables and each column contains the observations on one variable. We saw how to work with the Data Editor in [GSM] 6 Using the Data Editor—this chapter shows how we would do this from the Command window. Typically, missing values are included or ex-cluded explicitly by a segment of Stata code. Any invalid UTF-8 sequence requires one column. replace for replacing the values of an I am trying to create dummy variables in Stata that are 1 if any of the variables dx1 through dx25 start with a specific string. The next day, the exact small details needed for perfect duplication have become obscure. We will be explicit if you need to do something different for one versus the other. summarize price mpg weight if inlist(rep78, 1, 2, 3) Remember that we can’t give the range, greater or less than, and equal signs within the inlist function; only values Tagging in what sense? How do you tell which soldiers are out of step? Majority vote? How do you split a 50:50 agreement? Three variables say "Stata" and three say "SAS"? (No, that's an easy one to identify which are incorrect. Everyone has a feeling of complete omniscience while working intensely—this feeling is wonderful but fleeting. Nov 16, 2022 · The rule is that Stata treats numeric missing values as higher than any other numeric value, so missing would certainly qualify as greater than 30, and any observation with mpg missing would be assigned 1 for this new variable. Jul 27, 2020 · And while it is true that in the example data you show, for any value of trend, all the corresponding observations of unrate or dt_survey_q are the same. However, like any other software, there might be instances where your work is lost due to accidental closure or system crash. min () is a function. Oct 15, 2018 · Drop observations if value of one variable is found in another variable of any observation in the dataset 15 Oct 2018, 06:05 Dear Statalist, I have a dataset containing the information about the consolidated accounts of different firms. I wish to identify systematically the first (or last) occurrences of a particular condition in each panel with an indicator variable that is 1 when an observation is the first (or last) occurrence in a panel and 0 otherwise. Aug 8, 2014 · I'm trying to use if statements to assign correct labels for my graphs created inside foreach loop in Stata: foreach major in var1 var2 { * conditional labelling if "`major'" == "var1" { How do I create a variable recording whether any members of a group (or all members of a group) possess some characteristic? Jul 4, 2019 · Stata was looking for a variable called Kriti and couldn't find one. Jun 24, 2018 · Here's sample code that may point you in a useful direction. Note: You can always run a lower edition of Stata with a higher edition license. For example, antidepress would =1 if med1, med2, med3, or med4, etc. Jan 11, 2018 · I basically have a panel dataset per country, ID and year. in this case Stata is specifically told to match the first argument with any subsequent from the list. Blue Ocean The problem I have panel data (or longitudinal data or cross-sectional time-series data). It has neighbors of Also see Syntax a ? b : c where a must evaluate to a real scalar, and b and c may be of any type whatsoever. in 1 assert missing (mpg) assert !missing (mpg) On Mar 28, 2009, at 2:50 PM, Jacob Wegelin wrote: Nov 16, 2022 · Any multiple count will show up as a value of 2 or more, and we can identify any respondent trying to subvert the questionnaire by repeatedly mentioning their favorite software—or, if it seems appropriate, treat that as a measure of strength of interest. Now we can expand this, to another ID lets say 284. Any idea how to drop observations which, for example, are dated before 01jan2001? It is currently in int storage type (not sure if that is relevant). Jan 21, 2020 · should do what you want. In Stata, function is not another name for command. min and max Dropping all missing values means dropping all observations with any missing values on any variable. That expression, fed to max () or min (), will be evaluated observation by observation with a result of 1 if true or 0 if false. replace <varname> = <exp> if strmatch(<strvar>, "*GHMB*") (although I guess you are looking for "GmbH" instead of "GHMB") Better advice requires more information abut what _exactly_ you typed and what _exactly_ Stata replied, as stated in the FAQ (which you are Jul 29, 2020 · So you want the newvariable to be 0 if any argument is 0, and missing otherwise? The best method will depend on what else is going on. Sep 4, 2019 · Given the following dataset and commands: sysuse auto, clear generate x = . It offers various features and tools to manipulate and analyze data effectively. Data) ¶ class sfi. For example, there is a command summarize which provides summary information about variables. I need to check a set of variables and replace a value. com op logical — Logical operators Syntax Description Remarks and examples Feb 5, 2017 · If what you want is to see missings as a total whenever any value is missing, then you can write your own egen function -- that's serious; the user community has published many more egen functions than are included in official Stata -- or you need a three-step from official Stata: Code: sysuse auto, clear * missing values in rep78 Oct 22, 2020 · Shortcut for "if any in variable range is not missing" 22 Oct 2020, 11:08 Hello, I am dealing with 11 variables that I want to make into dummy variables. Jun 15, 2017 · It greatly simplifies the process of replicating your Stata example in another person's Stata, so that code can be tested on it. Below, we will refer to Stata, but we really mean either Stata or StataNow. See help macrolists for details. Easy to use. The key is using a macro list function to select variables that appear in both the list of variables to keep and the list of variables in the dataset. Feb 2, 2022 · I have data in Stata coding info in string words. Is there a way to do this without typing out logic statements for every permutation of pairs among the 4 variables? In Stata, I needed to search some string values. This can often be much more savage than a researcher really wants. If so, the code for that is: How can I replace missing values with previous or following nonmissing values or within sequences? May 8, 2019 · Handling missing values in Stata May 08, 2019 Lets look at some useful tips for handling missing values in Stata, as those can cause a lot of problems if not taken care of properly when working with any dataset. By default, misstable summarize, generate() marks the extended missing values as incomplete values, a well. That is, you can run Stata SE with a Stata MP license. Every command of Stata is designated r-class, e-class, or s-class, or, if the command stores nothing, n-class. It's not just invalid syntax, it makes no sense. I know that I should make a numlist for the drug codes, but am not sure how to do the rest Explore Stata command modifiers such as if, in, by, bysort, qualifiers, and statements. Nov 11, 2014 · Any chance you could tell me how to avoid having to type out the age_event variables one by one? Despite my example I actually have dozens of age_event variables. Accurate. You will to need to use Stata to complete problem sets and write research papers for your economics classes. For the variable avedmajor, I could do tab avedmajor, m Then, gen avedmajormissing=0 replace avedmajormissing=1 if avedmajor==. I have data that looks like: Market Firm Price ---------------------- 1 1 100 1 2 150 1 3 125 2 1 50 2 2 100 2 3 75 3 1 100 3 2 200 3 3 200 And I'm trying to compute the average price of each firm's rivals, so I want to generate a new field that is the average values of the other firms in a market. As you can see, a difficulty is that the string are not always an identical match, e. What you are missing, I think, is the combination of double quotes and compound double quotes: generate and replace This chapter shows the basics of creating and modifying variables in Stata. We will show some examples of how to use regular expression to extract and/or replace a portion of a string variable using these three functions From David Airey < [email protected] > To [email protected] Subject Re: st: check whether a variable has any missing values Date Sat, 28 Mar 2009 15:07:19 -0500 . Each company is assigned a unique Company-ID in a string variable. Mar 19, 2020 · In Stata, you either drop observations or drop variables. replace parentfigure=0 if X1HPAR1==2 | X1HPAR2==2 Jul 10, 2014 · 3 I know a way of finding and identifying missing values for a particular variable. If you are running version 15. Nov 12, 2020 · Then how could I drop all the observations that contain the word "financial"/"CFO" for example? Or is there any way I could keep only observations that contain a specific word such as "CEO" and "Chief Executive Officer" for example? Since there are a lot of variations in this variable and I just want to include the one that is CEOs. You can download mdesc from within Stata by typing search mdesc (see How can I use the search command to search for programs and get additional help? for more information about using search). Using tabulate to create dummy variables tabulate with the generate () option will generate whole sets of dummy variables. What you do depends on how much you want to clear out: at any Data (sfi. Nov 9, 2014 · I want to generate a variable x including several conditions. That ID has four neighbors, which all also have their own unique IDs. Thank you! This is what I do in the third line of the code. But how to see if my dataset has missing values in any of the variables without going through each one of them? Thanks. replace var1 = 1 if CONDITION1 & CONDITION2 . Here is an example of the if statements replace any_income__2007 = 0 if lont_2007 < mean_women_2007 if female == 1 & group ==1 and two more to show the pattern replace any_income_Sib_2007 = 0 if lont Follow-Ups: Re: st: RE: remove special characters from string From: Skipper Seabold <jsseabold@gmail. I have not been able to find any references on how to perform multiple operations on data records if a condition is met. , survey1 = 1 if any pre_* questions answered, 0 otherwise; survey2 = 1 if any post_* questions answered, 0 otherwise; survey3 = 1 if any follow_* questions answered, 0 otherwise). ) May 14, 2022 · Stata will omit all the observations with a missing value in at least one variable. 29. Dec 12, 2018 · I'm trying to create a variable that indicates whether any answers were submitted for a given survey (e. The real power of sort firm year before using the first command. Among these string functions are three functions that are related to regular expressions, regexm for matching, regexr for replacing and regexs for subexpressions. How to use if qualifiers and if statements in Stata. Note the function is limited to only 10 arguments for strings, but you can combine the functions themselves into more complex conditions. Clearly it did not because all three groups now have the same mean values which doesn't make sense. Consider one of the following: . The first one drops (i think) all empty variables but it does not show which variables it drops. (Look! No loop! is the Stata equivalent of the child or circus performer's No hands!) But you have more than 4. ) One way forward is to note that the row maximum and the minimum will be different if any values Aug 26, 2022 · I would like to create a variable "antidepress" that indicates whether any of the med variables (med1-med7) contain an antidepressant. The second statement creates xbig equal to 1 or 0, the value being 1 when x > 1000 Nov 16, 2022 · You may need to delete the current desktop shortcut and create a new one using the new executable. help dta_contents This will open a Viewer window with three clickable links. Regular expressions are simply strings that are a mix Mar 5, 2021 · How to count the number of missing values? I have a simple question I would like to know asap. Nov 16, 2022 · In other words, we can use any expression that is true or false. replace x = 5 if price == 4099 replace x = 5 if price == 4749 I want to generate a new variable x that is equal to 5 if Nov 1, 2019 · I am doing data clean-up in Stata and I need to recode a variable to equal 1 if a whole set of other variables are equal to 1, 6, or 7. I am having a hard time coming up with a formula that makes sense and doesn't erase Description drop eliminates variables or observations from the data in memory. This FAQ is likely only of interest to users of previous versions of Stata. Learn how to drop missing values in Stata with this step-by-step guide. You can keep or drop a variable in its entirety, but you cannot do so only in some observations, as the syntax attempts to do. dta is assumed. Dec 6, 2021 · It turned out to be the observation mentioned above. Perhaps what you really mean is that you would like to replace values of EBCreceived with missing values if year >= 2008 & month >= 7. Any command you run knows to operate on the data set you have open. The title on the other hand refers to two if conditions, but that's a puzzle Jun 15, 2017 · It greatly simplifies the process of replicating your Stata example in another person's Stata, so that code can be tested on it. Installation Installing the right executable License initialization Creating shortcuts on workstations License renewal or changes May 17, 2021 · Stata crashed in the midst of a loop and I'm wondering if there is any way to recover the do file I had written. You should type keep if facility=="bir" That way, Stata knows that "bir" is a string value Oct 22, 2021 · How to replace any variable's value if meeting certain condition 22 Oct 2021, 23:40 Dear Stata users, In the following data, I want to replace variables d2a1 d2a2 d2a3 to missing 'cause variable d2a <100. 29 and exclude those higher than 3. 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. How I can count the number of missing (or NULL) values in distinct from 0 values? Note Added I have tried to use some functions listed below, but I don't know if these functions could distinguish the missing values from 0 values. 4 Strings. I know that I can do this using something like the following but for generate and replace This chapter shows the basics of creating and modifying variables in Stata. This would be a good feature--at least for me as I seem to have a talent for crashing Stata and don't always remember to save before hitting run. In other words I need to create a StataCorp provides this manual “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. As I say, I think with these particular definitions of A, B, and C, this isn't a problem. Description The conditional operator returns b if a is true (a is not equal to 0) and c otherwise. 2 One Data One functionality where Stata differs than most other statistical or data analysis software is that Stata can only work with a single data set at a time. Thus many Stata programs have early syntax something like Starting with Stata 8, the duplicates command provides a way to report on, give examples of, list, browse, tag, or drop duplicate observations. Bersant, have a look at -help string functions-. It is this core syntax that Stata implements in its regular-expression functions. It Mar 4, 2014 · Is there any way to code a binary variable dependent on keywords being present in a given string variable? Simple example: I have a string variable that describes various meals and a dummy variabl StataCorp provides this manual “as is” without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. vztp vknkc fyppzso fmwr vjayc fzoona djdh nkuvyr tznodl hxiah zuaws adyg tvvyje bya tjdm