[R] filter out observation by condition

[Uwe Ligges]

sigalit mangut-leiba wrote:
> hello,
> I have a longitudinal data:
> idn     mort30      newinfec
> 1           0               1
> 1           0               1
> 1           0               1
> 1           0               1
> 2           1               1
> 2           1               1
> 2           1               1
> 3           0               0
> 3           0               0
> 3           0               0
> 3           0               0
> 3           0               0
> 
> and i want to filter out those obs. that has mort30==1 (mort30 is constant
> over idn).
> how can i use "if...else" and filter out those unwanted obs.?
> I appriciate the help,
> sigalit.


subset(data, mort30 != 1)

Uwe Ligges



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