Define age group.

[Rodrigo Soares]

Dear all,

My age range is 25-100.

I want to work with this age range 25-65 years old.

Is it correct to proceed as follows:

recode variable 25/65=1, gen (new variable)?

Many thanks.

[Clyde Schechter]

-recode variable (25/65 = 1), gen(new_variable)- will give you a variable that takes the value 1 whenever variable falls between 25 and 65, and uses the original value of variable otherwise. That's probably not what you had in mind. [Note also the correct syntax for -recode-, which requires parentheses around the 25/65 = 1 rule.]

Probably more useful is if new_variable is 1 when variable is between 25 and 65, and 0 otherwise. The way to do that is:

gen byte new_variable = inrange(variable, 25, 65) if !missing(variable)

[Rodrigo Soares]

Dear Clyde Schechter,

Thank you for your time and patience,

Best regards.