20/10/2016 · I had to setup a new dataset with 100 observations. Now, what is being asked is to create a dummy called prep for students who have taken a similar class before. The dummy should be equal to one for 25 of the students. I am a student, and we are struggling on this one. we'd be more than grateful for any help. Best, Catherine. Create multiple dummy indicator variables in Stata For example, the variable region where 1 indicates Southeast Asia, 2 indicates Eastern Europe, etc. may need to be converted into twelve indicator variables with values of 1 or 0 that describe whether the region is Southeast Asia or not, Eastern Europe or not, etc.

17/07/2018 · Basically, this variable, ss, can be generated by the Stata code as follows: bysort fact_code style_serial: gen ss=_n==1 _n is Stata notation for the current observation number. But I am trying to generate the same dummy variable, ss, using R but keep getting errors. These are the R codes that I have tried to mimic the above Stata code. 20/03/2017 · There is no need to generate separate "dummy" variables for use as independent variables. It's just a waste of time and space. No only that, if you generate your own indicator variables for a regression, you won't be able to use the -margins- command later, as -margins- only understands factor-variable notation. 01/12/2016 · Generating dummies in Stata. Ask Question 1. I have. Generate identity variable from dummy indicators in Stata. 1. Mimicking _n in Stata to generate a dummy variable in R. Hot Network Questions Why isn't my calculation that we should be able. I am attempting to generate a dummy variable for each year from 1996 to 2012 inclusive such that the 1996 dummy should equal 1 if it is 1996 and 0 if else using the foreach command in Stata to cut down on time at least for future projects.

In particular, Stata 14 includes a new default random-number generator RNG called the Mersenne Twister Matsumoto and Nishimura 1998, a new function that generates random integers, the ability to generate random numbers from an interval, and several new functions that generate random variates from nonuniform distributions. Doesn't -xi:- do the same thing? bret -----Original Message----- From: owner-statalist@hsphsun2. [mailto:owner-statalist@hsphsun2.] On Behalf Of Richard Goldstein Sent: Wednesday, July 16, 2008 10:04 AM To: statalist@hsphsun2. Subject: Re: st: creating dummy variables out of categorical variables Look at the help for tabulate one way you will. 11/11/2019 · 菜鸟弱问，怎么在stata中建dummy variable？,有一组数据X， 打算把它分成四种情况，建立虚拟变量：例如：若X<1， Y=1若1

**24/12/2019 · Creating and recoding variables Stata Learning Modules. This module shows how to create and recode variables. In Stata you can create new variables with generate and you can modify the values of an existing variable with replace and with recode.** 2[U] 25 Working with categorical data and factor variables for variables that divide the data into more than two groups, and let’s use the term indicator variable for categorical variables that divide the data into exactly two groups. Stata can convert continuous variables to categorical and indicator variables and categorical variables. 28/04/2014 · Learn the syntax, use, and interpretation of the commands generate, replace and label to generate new variables. Learn the syntax, use,. Introduction to Stata - Generating variables using the generate, replace, and label commands UCSF GSI. Loading.

generate double u = b–aruniforma. The random numbers will not actually be between a and b, they will be between a and nearly b, but the top will be so close to b, namely 0.999999999767169356b, that it will not matter. Remember to store continuous random values as doubles. If you want to generate integer random numbers between a and b. Create New, or Modify Existing, Variables: Commands generate/replace and egen. To create new variables typically from other variables in your data set, plus some arithmetic or logical expressions, or to modify variables that already exist in your data set, Stata provides two versions of basically the same procedures: Command generate is used.

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