creating quarter of birth dummy

[Mario Alberto]

How can i create a quarter of birth dummy with a variable expressed as 01jan1999 ?
thank you

[Jorrit Gosens]

* Example generated by -dataex-. To install: ssc install dataex
clear
input str10 datestring
"01jan1999"
"01feb1999"
"01mar1999"
"01apr1999"
"01may1999"
"01sep1999"
"01dec1999"
end

gen date = daily(datestring, "DMY")
format date %td
gen quarter = quarter(date)

And please use dataex to provide data examples in future posts, as I did here. It gives the readers on this forum all the info they need on how your data s stored, amongst others. See more in the FAQ: https://www.statalist.org/forums/help#stata

[Nick Cox]

I think you need to give more details than that. https://www.statalist.org/forums/help#stata gives advice.