[R] creating lagged variable in panel data

[arun]

HI,
Try this:
wage2.dat<-read.table(text="
  year person   wage        lag(wage,-1)
  1980      1 -0.75843997            NA
  1981      1  0.27233048  -0.75843997
  1982      1 -1.58335767    0.27233048
  1983      1  0.36805926  -1.58335767
  1984      1 -0.52312153    0.36805926
  1980      2 -0.53559110            NA
  1981      2 -0.94935350  -0.53559110
  1982      2  0.10486688  -0.94935350
  1983      2 -0.50266443    0.10486688
 1984      2  0.14644024  -0.50266443
",sep="",header=TRUE)
 row.names(wage2.dat)<-c(paste0(1,".",1:5),paste0(2,".",6:10))
names(wage2.dat)[4]<-"wag.lag1"
A.K.




----- Original Message -----
From: "Alok K Bohara, PhD" <bohara at unm.edu>
To: R-help at r-project.org
Cc: 
Sent: Wednesday, August 29, 2012 10:34 AM
Subject: [R] creating lagged variable in panel data

Hi

I found an example in R to create a lagged panel data set which works fine.  The only problem is that it adds the lagged variable as follows

wage2.dat

          year person        wage        lag(wage, -1)
1.1  1980      1 -0.75843997            NA
1.2  1981      1  0.27233048   -0.75843997
1.3  1982      1 -1.58335767    0.27233048
1.4  1983      1  0.36805926   -1.58335767
1.5  1984      1 -0.52312153    0.36805926
2.6  1980      2 -0.53559110            NA
2.7  1981      2 -0.94935350   -0.53559110
2.8  1982      2  0.10486688   -0.94935350
2.9  1983      2 -0.50266443    0.10486688
2.10 1984      2  0.14644024   -0.50266443
.
.

Is there anyway  I could rename the last column      wag.lag1? Thanks.


Best,
Alok

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