STATA REPLACE IF HOW TO

Gen electron_right=(electron=1) if electron<. Gen bigbang_right=(bigbang=1) if bigbang<. Rule 2: Logical or Boolean arguments, such as the argument to if or while, may take on any value, not just 0 or. Rule 1: Logical or Boolean expressions evaluate to 0 if false, 1 if true. I will state the rules, and then we will look at each in turn. Label define edcats 1 'Less than HS' 2 'HS' 3 'Some College' /// Stata follows two rules, the second of which may be considered as a generalization of the first. Label variable edu_cat 'Education Category' Hence, z>42will be true for all the missing values of z, as well as. Even experienced users sometimes forget that in Stata numeric missing is regarded as arbitrarily large.

This may look like a bug, but it is really a feature. data2 stata replace if

The gen and replace commands will often have if conditions. The something you're setting the variable to will be the result of some math, but it can be really simple math, like a single number. The basic syntax is the same for both commands: Since replace can destroy data, it has no abbreviation. You can change the value of an existing variable using replace. You create a new variable in Stata using the generate command, usually abbreviated gen. Start with the usual setting up (see Doing Your Work Using Do Files):

STATA REPLACE IF HOW TO

In this article you'll learn how to create new variables and change existing variables.ДЄssuming you created an SFS folder while reading Managing Stata Files, go to that folder and create a new do file called newvars.do. If you are new to Stata we strongly recommend reading all the articles in the Stata Basics section. It can be helpful to use the recode command to efficiently replace those values.This article is part of the Stata for Students series. In that case, you will want to replace all -99 and -999 values with. For instance, if -99 and -999 refer to вЂњdonвЂ™t knowвЂќ in two different waves of the survey, they should be standardized. Instead, all string variables with a missing value are shown as вЂњвЂќ (called вЂњblankвЂќ).Д®nsure extended missing values consistently represent missing values in your data. Note that extended missing values cannot be stored in string variables. The magnitude of missing values increases across the alphabet, with the standard missing value. For numeric variables, missing values are considered to be greater in value than all other numbers and themselves have an order of magnitude. Stata has special codes for numeric missing values.

Stata replace if