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st: R: combine indicator values

From   "Carlo Lazzaro" <>
To   <>
Subject   st: R: combine indicator values
Date   Mon, 23 Nov 2009 09:51:14 +0100

Nick wrote:

<... after I combined them into 1 variable...>

I'm not very clear with the aim of Nick's research, but, as far as the above
reported sentence in concerned, Nick might want to try: 
set obs 10
g id=_n
g child_1=1 in 2/6
replace  child_1=0 if  child_1==.
g child_2=1 in 7/8
replace   child_2=0 if   child_2==.
g child_3=1 in 9/10
replace   child_3=0 if   child_3==.
egen grand_child=rowtotal( child_1 child_2 child_3)

Kind Regards,
-----Messaggio originale-----
[] Per conto di Nikolaos Pandis
Inviato: lunedì 23 novembre 2009 9.13
Oggetto: st: combine indicator values

Hi to all.

I have the following binary (0,1) variables:

child1, child2 child3

They indicate if the family has or not 1, 2, 3+ children respectively.

I would like to enter them in a logistic model using the xi commnad and
child1 as reference, after I combined them into 1 variable.

Any advise would be appreciated.

Many thanks,


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