[R] replacing values in Array

[uday]

I want to replace some values in my Array 
e.g 
data<- c(1,2,3,4,5,6,7,8,9,10,11,12) 
I would like to replace 1,2,3 by 1 , 4,5,6 by 2, 7,8,9 by 3 and 10,11,12 by
4 
I am expecting out put 
data<- 1 1 1  2 2 2 3 3 3 4 4 4 

I have tried replace function 
replace(data, (data==1 |data==2| data==3),1)
replace(data, (data==4|data==5| data==6),2)
replace(data, (data==7|data==8| data==9),3)
replace(data, (data==10 |data==11| data==12),4)
but it changes only for individual operation it does not apply to whole
array. 
So how I should replace values of whole array ? 



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