Stata Recode String To Numeric, : mvdecode _all, We want to make a new binary variable to indicate whether a coup occurred in a country in 1990 or not. First we can make a numeric variable. 1. We can plan it as follows. The maximum number of associations within each value label is I tried using "encode" to make the values numeric, so that I could use "recode" to change the values, but that gave me the error "unknown el Germany in rule". This 7. The destring command The destring command might be the first choice for converting string variables to numeric if Some data contain string variable and these string variables are not recognized by the Stata to be used readily. First off we'll recode a numeric variable into categories using the auto dataset: Stata records pure time values (clock times independent of date) the same way. How do I recode these so Stata recognizes them as missing values? When I have numeric missing values, I have been using e. In Stata you can create new variables with generate and you can modify the values of an existing variable with replace and with recode. Next bit is important, we put all the original and new variables in ” ” inverted commas. com Remarks are presented under the following headings: Simple examples Setting up value labels with recode Referring to the minimum and maximum in rules Recoding missing values Recoding subsets of the data Otherwise rules Test for overlapping rules 2 recode is meant to change the values of numeric variables to other numeric values; not to strings. Consider the following example: * Example generated by -dataex-. My survey and subsequent data set (n=2,682) contains five string variables that include four "check all that apply" response options. In this guide, we'll explore how to use the encode command effectively and troubleshoot a common issue that may arise during the process. My variable when is a string. If the variable is actually a numeric value that just happens to be stored as a string, see our FAQ: How can I quickly convert many string variables to numeric variables? Nov 16, 2022 · How to convert string data to numeric data Sometimes, data that look like numbers are actually stored as strings. The Buyers are labelled numerically, whereas the the variable Seller is a string variable, which I have encoded as a numeric variable as well. I think you want to label your values: clear set more off input /// byte bytevar 1 2 3 end // add value labels label define lblbyte 1 "A" 2 "B" 3 "C" label values bytevar lblbyte // list list // but they are really numeric values list, nolabel Step 3: Convert it to numeric variable destring varname, replace General advice: instead of replacing the variable, you can generate a new variable to do all the above-mentioned tinkering. If you have a string variable and want to convert it to a numeric variable, you can use the encode command. Your Gender will not work with recode. a string that contains nothing. 3 Value labels and [D] encode. encode is the command for mapping arbitrary string variables to numeric variables with value labels. I want to recode it because I want to conduct t test for variable mtbv lgta based on the values of when. Rather than thinking of the numeric value as the number of milliseconds since 01jan1960, however, think of it as the number of milliseconds since the beginning of the day. I have a data set with hospital account types (22 account types under a variable called "accnt_type"), with lengths between 4 and 5 characters long. So in the brackets, we indicate our dataframe at the start. Dear Stata Users, I want to recode/replace string values with numeric ones. Let’s start with the destring command first. String variables are shown in red . Stata didn’t give us an error, but it also didn’t do what we hoped for. For instance, at 2 p. gender really is a numeric variable, but because all Stata commands understand value labels, the variable displays as “male” and “female”, just as the underlying string variable sex would. But there is probably extra stuff in the variable that caused it to be read in as numeric. More informationhelp recode Practical example 1 Variable Recoding string variables with multiple numeric and nonnumeric values per cell? 24 Sep 2018, 05:54 Good afternoon, I use Stata SE/14. Running this command will cause Stata to make a new numeric categorical variable wherein the data has labels that correspond to the old string values. ". However, you need to use a command called replace instead of recode. when = "post1", indicates mtbv lgta are measures 1 year post to an event . is 50,400,000 because In my dataset I currently have the labels Male and Female within my gender variable. Creating and recoding variables | Stata Learning Modules This module shows how to create and recode variables. every day, the airplane takes off from Houston for London. The problem is that I don't want to enter all the values of Ucod to recode. Stata is a complete, integrated statistical software package for statistics, visualization, data manipulation, and reporting. encode encode is most useful in making string variables accessible to Stata’s statistical routines, most of which can work only with numeric variables. For example, in nhanes2 sample data, we can try creating new categories: race_gender using the following two variables: race and sex. I want to make an integer variable out of it such > that it has a new (ascending) value for each new unit. Recode string variable to numeric 28 Oct 2015, 11:04 Dear Statalisters, Below I display the first few observations of my large dataset. Recode A String Variable Asked 5 years, 4 months ago Modified 5 years, 4 months ago Viewed 1k times This command can only be used for numeric variables. If a numeric variable is stored as a string variable in Stata, we have several ways to convert them to numeric variables. g. One method of converting numbers stored as strings into numerical variables is to use a string function called real that translates numeric values stored as strings into numeric values Stata can recognize as such. May 14, 2023 · I have a variable in Stata which consists of letters such as A, B, AB, AC, etc. Last edited by Marcos Almeida; 04 Apr 2019, 04:11. For example, one of the variables asks "how many people live in your household?". Fast. One difference is that string values go in quotes; another is that for a string variable missing is "", i. It is preferable to generate a copy of the old variable before you start replacing values (or expressions, which is the term used below). Function Basic commandrecode varname (rule) Useful optionsrecode varname (rule), gen (newvarname) ExplanationsvarnameInsert the name of the variable. Jul 9, 2018 · I am attempting to change 30-40 text/string values to numeric values for five variables. . In the next post we’ll talk about commands that change variables to and from Strings. For example: You should feel confident using Stata syntax to change how numeric variables are stored and changing their values. Both give similar numeric variables (which are preferred over string because some command does not accept string-format If you would love to create a new variable using multiple variables, you need to use gen and replace instead of recode, since recode only allows us to recode within one variable. This Fast. Recoding string variables builds on the same principle as for numeric variables. As age_woman appears to be a string variable recode can't be used unless you destring first. 3 Value labels. The numeric value associated with 2 p. For example I want to use an if condition like if any value in Ucod starts with I (e. newvarnameName of the new variable. I want to recode the string variable t into numerical variable, say t1, with values denoted in the corresponding parenthesis, and "-" are replaced by the standard ". I need them converted to numeric variables so that I can generate a new variable with them. I'm very new to Stata and am having difficulty converting a text value to a numeric one. With either option, if any string variable contains nonnumeric characters not specified with ignore(), then no corresponding variable will be generated, nor will that variable be replaced (unless force is specified). It used the numeric value of the factor as the string, rather than the label (observations that used to say “Domestic” now say “0” in the new variable). That leaves the usual "gen + replace" method, or encode. is the missing value for numeric variables and cannot be used in a string variable. 0 I want to recode my variable Ucod in Stata with >100000 different observations into 3-4 classified values in the form of a new variable. gen ()Add this if you want to generate a new variable with the recoding. Recoding examples in Stata April 16, 2019 Let's look at some examples of recoding variables in Stata. com mvencode — Change missing values to numeric values and vice versa Syntax Remarks and examples Menu Acknowledgment Description Also see The problem you are encountering is that . Instead, we can use replace to recode variables. Now, what I want is to make another variable for buyers (Buyer1) , that is actually a string variable, but the label for which is defined by the Seller variable. e. The easiest way to convert string variables to numeric form is to use the encode command. com Remarks are presented under the following headings: Simple examples Setting up value labels with recode Referring to the minimum and maximum in rules Recoding missing values Recoding subsets of the data Otherwise rules Test for overlapping rules Remarks and examples stata. encode is also useful in reducing the size of a dataset. If you are not familiar with value labels, read [U] 12. Converting Numeric Data to String in Stata – The decode Command If we want to convert numeric data to string type, the decode command is used in the same manner that encode was used. , "female" instead of "1") you have to tell Stata to encode [varname] the string data. In this post, I show how to convert string variables to numeric in Stata. 03 Sep 2014, 16:11 Dear all, I am new to Stata so this might be very basic, but after a long search and myriad failing attempts, I would like to ask you this: How do I recode string values of a variable into numeric values? And more importantly, how do I change string values in order to assign them with new, different strings? In this video, I will explain how to convert string variables into numeric variables in Stata, providing you with clear and easy-to-follow instructions. We will need to convert these variables to numeric data before we can use them with Stata's statistical features. How to recode a string to a numeric value in Stata? Asked 2 years, 5 months ago Modified 2 years, 5 months ago Viewed 77 times I have two variables in Stata, both numeric variables that have somehow been recorded as string variables. A few individual characters may have caused this, or perhaps metadata have crept into the first few observations. Either generate() or replace must be specified. For string variables, recode does not work. Your -replace- command clearly treats `var' as numeric before the -if- and as string after it. 15. Stata did convert foreign to a string, but not in the way we wanted. * Check its label scheme: codebook g02 And is the results: First, recode only works if the incoming source variable is numeric. m. It's for variables that are essentially numeric in content, but have been misread somehow. How to Convert String Variable to a Numeric Variable in Stata? How to Create Label, Define Code, Recode Variable in STATA for Descriptive Analysis of NSSO Data #3 Just try typing “Stata string to numeric” in the web. I want to change to numeric, with values numbers instead of letters, such as 1 instead of A. Computing new variables using generate and replace Let’s use the auto data for our examples. As I am going to be running a regression model I would like to change this so Male and Female are recoded to ap I have a dataset with missing values coded "missing". On the other hand, "Unsure" and "Prefer not to say" are string values that cannot appear in numeric variables. How to recode a string to a numeric value in Stata? Asked 2 years, 5 months ago Modified 2 years, 5 months ago Viewed 77 times gender really is a numeric variable, but because all Stata commands understand value labels, the variable displays as “male” and “female”, just as the underlying string variable sex would. 5 String Variables You can create and change string variables with gen and replace just like numeric variables. To install: Recoding a string variable into numeric (instead of destring) and subsequent mismatch of values 17 Sep 2019, 20:55 We can convert string variables with non-numeric values to numeric variables in Stata using the encode or egen commands. g, I234, I345, I587) recode the whole value to In a case where your string variables are in fact strings (e. For gear_ratio, it worked. I attached a screenshot. > > Cross sectional units in my panel data set are currently identified by > names (string variables). To do this we use the car::recode() function. com Remarks are presented under the following headings: Simple examples Setting up value labels with recode Referring to the minimum and maximum in rules Recoding missing values Recoding subsets of the data Otherwise rules Test for overlapping rules The magic here is to convert the string variable sex into a numeric variable called gender with an associated value label, a trick accomplished by encode; see [U] 12. Accurate. 6. In this video, I will explain how to convert string variables into numeric variables in Stata, providing you with clear and easy-to-follow instructions. Thomas Heckelei < [email protected] > wrote: > I'm a stata beginner and have a recoding problem. (rule)Specify which values you want to recode and how you want them to change. There is another way to convert continuous variables into categorical variables, and it is even more automated: autocode() works like recode(), except that all you tell the function is the range and the total number of cells that you want that range broken into: generate newvar1, , newvar for each variable in varlist replace string variables in varlist with numeric variables remove specified nonnumeric characters, as characters or as bytes, and illegal Unicode characters convert nonnumeric strings to missing values generate numeric variables as type float convert percent variables to fractional form convert variables with commas as decimals to Title stata. Easy to use. Remarks and examples stata. If you have a string variable that has only numbers in it, then you can alternatively use the real () function. qhmqe, mtiyv, xeuc, fojy, 6j05ob, tykr, ashci, hdrib, zyfkl, 4sbp,