How do you recode variables in Stata?
To recode variables in Stata, use the recode command. To use recode , you must provide a list of variables to be recoded and the rules associated with that change….In the example above:
- The values of 1 and 2 are recoded as 1 .
- The values of 3 , 4 , 5 are recoded as 2 . Note:
- The values of 6 and 7 are recoded as 3 .
What is the recode command in Stata?
The recode command in Stata can be used to convert a continuous variable into a categorical variable, and can also be used to condense a categorical variable. By default this command will overwrite the original variable.
How do you use Egen function?
- Title.
- stata.com.
- egen — Extensions to generate.
- Description. Quick start.
- Description.
- egen creates a new variable of the optionally specified storage type equal to the given function based on arguments of that function.
- Quick start.
- Generate newv1 for distinct groups of v1 and v2, and create and apply value label mylabel.
What is Clonevar Stata?
Description. clonevar generates newvar as an exact copy of an existing variable, varname, with the same storage type, values, and display format as varname. varname’s variable label, value labels, notes, and characteristics will also be copied. Remarks and examples. stata.com.
What does _n mean Stata?
observation number
Introduction. Stata has two built-in variables called _n and _N. _n is Stata notation for the current observation number. _N is Stata notation for the total number of observations.
What does != Mean in Stata?
13.2.3 Relational operators The relational operators are > (greater than), < (less than), >= (greater than or equal), <= (less than or equal), == (equal), and != (not equal).
What is Egen command?
The Stata command egen, which stands for extended generation, is used to create variables that require some additional function in order to be generated. Examples of these function include taking the mean, discretizing a continuous variable, and counting how many from a set of variables have missing values.
How do I Recode variables in Stata?
To recode variables in Stata, use the recode command. To use recode, you must provide a list of variables to be recoded and the rules associated with that change. For a variable (for example, q1) that contains integers ranging from 1 to 7, to collapse the values into three categories, use: recode q1 1=1 2=1 3/5=2 6=3 7=3
How to create a new variable from census data in Stata?
We use variables of the census.dta data come with Stata as examples. Here we use the -generate- command to create a new variable representing population younger than 18 years old.
How to create a population younger than 18 years old using Stata?
We use variables of the census.dta data come with Stata as examples. Here we use the -generate- command to create a new variable representing population younger than 18 years old. We do so by summing up the two existing variables: poplt5 (population < 5 years old) and pop5_17 (population of 5 to 17 years old).
What does Recode do to value labels?
The recode command is most often used to transform categorical variables, which are many times value labeled. When a value-labeled variable is overwritten by recode, it may well be that the value label is no longer appropriate. Consequently, output that is labeled using these value labels may be misleading or wrong.