[R] Filter data

Diogenas diogenas at gmail.com
Thu Dec 2 21:08:32 CET 2010

I understand that question is probably stupid, but ...

I have data (polity IV index)
"1","Afghanistan             ",1800,1,7,-6,-6
"2","Afghanistan             ",1801,1,7,-6,-6
"3","Afghanistan             ",1802,1,7,-6,-6

I need to create new data sets which includes only cases after year 1995.
I've tried this command:
poli2<-poli[poli$year > 1994,] ,
 however it generated this:
Error in poli[poli$year > 1994, ] : incorrect number of dimensions.
Any ideas how i can overcome this?

Thank in advance for your help,

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