I would suggest that first you look at the results of
(as.numeric(as.character(dfpr2_r$pr2))) > 0.2 && (dfpr2_r$landa > 10)
by itself. Does it give all FALSE ?
Then look at each of the parts separately. What are the results of
(as.numeric(as.character(dfpr2_r$pr2))) > 0.2
and
dfpr2_r$landa > 10
Are there any TRUE among the results?
Does
as.numeric(as.character(dfpr2_r$pr2))
give what you expect?
-Don
At 5:20 PM +0200 1/13/10, Ahmet Temiz wrote:
hello
is it wrong with this expression:
subset(dfpr2_r,(as.numeric(as.character(dfpr2_r$pr2))) > 0.2 && (dfpr2_r$landa
10))
it gives nothing
regards
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