st: R: filter string variable

["Carlo Lazzaro" <carlo.lazzaro@tiscalinet.it>]

Dear Victor,
in its triviality, the following example might hopefully help you out:

-----------------------------------------------------
set obs 10
g Lobbists="agri" in 1/3
replace Lobbists="farm" in 4/6
replace Lobbists="corn" in 7
replace Lobbists="white_collar" in 8/10
encode Lobbists, g( Lobbists_2)
label list Lobbists_2
replace Lobbists_2=1 if Lobbists_2!=4
list Lobbists_2 if Lobbists_2==1
-----------------------------------------------------

Kindest regards,
Carlo




-----Messaggio originale-----
Da: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di victor
Inviato: lunedì 25 marzo 2013 12:03
A: statalist@hsphsun2.harvard.edu
Oggetto: st: filter string variable

Hi,

I have a dataset which contains the amount of contributions from various lobbies to a member of congress. However, for my research I am only interested in the contributions from the agricultural lobby. Therefore, I would like to filter in a way that keeps only the observations which contain words like “agri” or “farm” etc. in it. Since I have to do this for various members of congress on several occasions I would like to make some sort of code for it. So far I am unable to work something out.

Can anyone help me out on this?

Thanks in advance,
Victor




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