Ashim wrote:
I realize that there are 2 kinds if's in Stata.
Type 1 : would be something like replace j = 2 if k==2
here the replace in j would happen ONLY in the corresponding
observation of k. THIS IS WHAT I WANT.
Type 2 : the programming if something like
local j
if `j'==2 {
do something.
}
**************************************************************
I guess I want to do something which is in between the above 2.
I want to say the following : --
replace j=2 if k==2
replace m=2 if k==2
replace n=2 if k==2
in ONE shot.
so I try : -
************************************** Block A
if k==2 {
replace j=2
replace m=2
replace n=2
}
*********************************************
This does not work. Because k==2 would mean k==2 in ALL observations.
...
===============================================================
Actually the command -if k==2- means k==2 in the FIRST observation.
In Stata terms, your type 1 -if- is a qualifier; your type 2 -if- is
a command.
There is probably no smart way to do what you want. In some cases
you might benefit from putting the condition in a macro, like:
sysuse auto.dta , clear
local X "if foreign==1"
replace price = 1 `X'
replace weight = 2 `X'
Hope this helps
Svend
__________________________________________
Svend Juul
Institut for Folkesundhed, Afdeling for Epidemiologi
(Institute of Public Health, Department of Epidemiology)
Vennelyst Boulevard 6
DK-8000 Aarhus C, Denmark
Phone: +45 8942 6090
Home: +45 8693 7796
Email: [email protected]
__________________________________________
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