R help - Apr 2005 - Split dataset as factor and numeric

Dear all,
If I have dataset like,
A1    25
B     2
AA    0
C     0
A1    1
B     3
A1    0
C     3
B     0
A1    45
A1    7
C     0
B     0
A1    0
B     6
B     3

Is there any function to split like,
A1    25
A1    1
A1    0
A1    45
A1    7
A1    0

or 

AA    0
C     0
A1    0
B     0
B     0
C     0
B     0
A1    0

Thanks,
Jan Sabee

Jan Sabee wrote on 4/27/2005 5:58 AM:
> Dear all,
> If I have dataset like,
> A1    25
> B     2
> AA    0
> C     0
> A1    1
> B     3
> A1    0
> C     3
> B     0
> A1    45
> A1    7
> C     0
> B     0
> A1    0
> B     6
> B     3
> 
> Is there any function to split like,
> A1    25
> A1    1
> A1    0
> A1    45
> A1    7
> A1    0
> 
> or 
> 
> AA    0
> C     0
> A1    0
> B     0
> B     0
> C     0
> B     0
> A1    0
> 
> Thanks,
> Jan Sabee
> 
Jan,

?subset

subset(x, V1 == "A1")
subset(x, V2 == 0)

HTH,

--sundar