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st: RE: Calculating Averages of Each Observation for Panel Data
From 
 
Nick Cox <[email protected]> 
To 
 
"'[email protected]'" <[email protected]> 
Subject 
 
st: RE: Calculating Averages of Each Observation for Panel Data 
Date 
 
Thu, 24 Nov 2011 19:54:37 +0000 
. help collapse 
for closest Stata command. 
Nick 
[email protected] 
Andrew Wong Yoon Loong
I am working with panel data that is similar to the following:
Station Year    Month    V1     V2
1         1990    1             25      25
1         1990    5             60      12
1         1990    7              0       .
1         1991    1              .       .
1         1991    6            300     50
2         1990    1             25      25
2         1990    5             60      12
2         1990    7             0       .
2         1991    1              .       .
2         1991    6             300     50
Is there a command in Stata that will allow me to calculate the annual
average values for V1 and V2 for each individual station such that I
will get a dataset resembling the one below? Or do I have to manually
calculate using the average() function in Excel?
Station Year    V1      V2
1         1990
1         1991
2         1990
2         1991
Regards
Andrew
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