How can i write a code to do the alterations in stata. This article is part of the stata for students series. Lets say we want to rename variables mtemp1mtemp12 as mtempjanmtenpdec. We can do so by just tweaking a bit of the codes in the previous example. Several variables can be renamed with a single command, as in. Chapter 3 working with data sets introduction to stata. The drop, keep, and rename statements or the drop, keep, and rename data set options control which variables are processed or output during the data step. Using macros it is very easy to rename any number of variables in stata. Introduction to stata msc research methods 20082009 michael mcmahon1 1 this is a version of the course and notes that i have given to phd students in the department of economics at the london school of economics for the past 3 years, as well as to economists at the bank of england. Among other important developments are the introduction of factor variables stata 11, dateandtime variables stata 10, and a much improved mergecommand stata 11. How to efficiently and intelligently rename variables in stata. Stata is a software package popular in the social sciences for manipulating and summarizing data and. Nov 03, 20 as of stata 12, the rename command can rename more than one variable at once. You can use one or a combination of these statements and data set options to achieve the results you want.
Whether this is your first time cleaning data or you are a seasoned data monkey, you might find some useful tips by reading more. Please read the faq for further details on this point. Define local macro mcode and month, then rename the 12 vars in the foreach loop. For 2 you could try using insheet with the case option, or you could import the data and then rename the variables. Is there an easy way to do multiple renaming of variables in one line of code. Classes will meet on 12032014, 32014 and 14032014 from 09. Title rename rename variable syntaxmenudescriptionremarks and examplesreferencesalso see syntax rename old varname new varname menu data data utilities rename groups of variables. In stata go to fileimportexcel make sure to check import first row as variable names. In this article youll learn how to create new variables and change existing variables.
Apr 08, 20 for 1 i would suggest contacting stata technical support. If even older versions of stata need to be able to read the file, then use saveto9 after using saveold to get the file in stata 12 format. While i could actually rename groups of variables through the rename command, i still would like to learn how to do it by looping. This course is intended as an introduction to the stata 14 software package to researchintensive faculty and doctoral students in the college of nursing. If you are new to stata we strongly recommend reading all the articles in the stata basics section. Users of stata 12 should try the much extended rename first. Dear grace thanks for creating an example that illustrates so clearly what you want to do. Instructional video on how to rename and label variables and variable values using stata, data analysis and statistical software. See the rename variables command description in the spss syntax reference guide associated with your version of the software for more details. The following are code fragments intended for use by more advanced sas users. The tricks and shortcuts mentioned were introduced with stata 12.
Stata has a built in feature that allows you to access the user manual as well as help files on any given command. A stata or earlier data file needs to be read by spss. Data data utilities rename groups of variables description rename changes the name of existing variable old varname to new varname. It is the result of another stata principle that references to varname in this case inside renvars are interpreted as references to varname1 whenever only a single value can be returned and that will work so long as all such values of each variable in question are legal names. Rename an observation posted 11292016 2533 views in reply to dme790 proc tabulate sorts rows by the values of the class variables from left to right as they appear in the table statement when nested. This is an introductory book aimed at people working in health research, and we have made several decisions about what to include and what to omit. To create a new variable or to transform an old variable into a new one, usually, is a simple task in r.
Linear regression analysis in stata procedure, output and. If the file exists in a different directory, you will need to give the full or relative path. If you dont state your real problem at the outset, you run the risk of wasting everyones time. Take the temperature dataset we created as an example. On this page, we show a few sas macro programs for dynamically renaming variables.
Stata is an allpurpose statistical software that covers a wide variety of data management and statistical analysis routines, and also offers excellent graphical capabilities. For example, rename variables v1 to v10 v11 to v20 will do pretty much what it appears to be doing, and eliminate the need to specify each renamed variable individually. After that length of time statacorp caught up and the official rename is now much versatile in stata 12, although i doubt it has a way to solve your problem without a loop. The common function to use is newvariable variables are always added horizontally in a data frame. Prior to that, some other commands such as the following were available. By the way rename has been much extended in stata 12. Advanced microeconometrics with stata winter 2014 instructor. But when it reaches the variables that are for the second member of the household e. The common function to use is newvariable importexcel make sure to check import first row as variable names. Stata news, code tips and tricks, questions, and discussion. Change variable name, variable label, values label to. At some point i will write up as a statalist posting a kind of dictionary comparing renvars examples and rename examples for anyone using 12 who is curious. The purpose of this course is to provide professionals with the.
As you may have deduced from the sysuse and webuse commands above, the command to load local data is use. It would probably make more sense to rename your variables to an. Stata is a complete, integrated software package that provides all your data science needsdata manipulation, visualization, statistics, and reproducible reporting. This course is for professionals and researchers from all academic disciplines who are new to stata, assuming only limited statistical knowledge and experience of using statistical software. At some point i will write up as a statalist posting a kind of dictionary comparing. The asterisk serves as a wildcard to indicate parts of variables names or entire variable names that will be left unchanged in the renaming process. Stata module to rename variables as their nthrow values, statistical software components s458116, boston college department of economics. We have a list of variables, and the name for each variable consists of the original name plus a common suffix. After that length of time statacorp caught up and the official rename is now much versatile in stata 12. In stata, managing the names and order of variables is important to make entering commands easier due to the shortcuts for referring to variables.
As of stata 12, the rename command can rename more than one variable at. The import menu in stata and other software can often address this, but a csv file bypasses this. How to create, rename, recode and merge variables in r. For example, for v1, v2, v3, and v4 i would like to rename.
Stata is a complete, integrated statistical software package that provides everything you need for data science. Advanced microeconometrics with stata carleton university. In stata 12, rename is now so versatile that writing your own foreach loop shouldnt be necessary for renaming. In all likelihood they will want to know about this problem and will fix it. Harmonisation of variables names prior to conducting. This example uses the drop and rename data set options and the input function to convert the variable poprank from character to numeric. Participants will be introduced to statas interface and shown how manage and prepare datasets for. Participants will be introduced to statas interface and shown how manage and prepare datasets for analysis. A few sas macro programs for renaming variables dynamically. But let me refer here to the stata help at help rename group. Please read the faq to see why you are asked to explain this. Use saveold if using stata to save the file in stata 12 format and then use saveto9. Not all characters in the keyboard, however, are allowed in naming variables.
Here we use the generate command to create a new variable representing population younger than 18 years. Introduction to health and social research with stata. This will generate the output stata output of linear regression analysis in stata. A few spss loops for renaming variables dynamically spss. We are here to help, but wont do your homework or help you pirate software. The action taken by sas depends largely on whether you. A variable name may contain only the digits 0 to 9 and upper or lower case english alphabets a to z. Title rename rename variable syntaxmenudescriptionremarks and examplesreferencesalso see syntax.
The course assumed to previous knowledge of the software nor any statistical knowledge. Classes will meet on 12 032014, 32014 and 14032014 from 09. For example, rename var1var100 a instead of the first loop. Also seed rename group for renaming groups of variables. Even in stata 11 and below, the userwritten renvars can rename multiple variables at once. The name poprank is changed to tempvar before processing so that a new variable poprank can be written to the. Batch variable rename stata econometrics by simulation. The goal of the course is to teach students about the basic functionality of stata and how it can be used to analyze large data sets. Although they may look complex only small changes are needed to adapt these macros for your data.
Thus, rename v v will rename all variables that start with capital v, replacing it by a small v. As of stata 12, the rename command can rename more than one variable at once. The following examples show specific ways to handle dropping, keeping, and renaming variables. Typing in data, changing variable names, adding labels, and adding values duration.
Stata module to rename variables as their nthrow values. If you happen to not be using stata 12, renvars scc would suit here as well. Recall that variables can be referred to using wildcards e. Change variable name, variable label, values label. Data analysis with stata 12 tutorial university of texas.
Assuming youre using stata 12, you dont need a loop to solve this issue. See the extensive examples available in help rename. Or save the excel file as csv and import it using insheet. For 1 i would suggest contacting stata technical support. The new rename stata 12 is much more flexible than the old. Statas data management features give you complete control. Press question mark to learn the rest of the keyboard shortcuts. This post demonstrates how to create new variables, recode existing variables and label variables and values of variables.