[R] order with NAs

[Remigijus Lapinskas]

Dear All,

I have the test results in the following form

> test <- data.frame(Name=letters[1:5],Score=c(7,NA,5,NA,10))
> test
  Name Score
1    a     7
2    b    NA
3    c     5
4    d    NA
5    e    10

I want to rate Names by Score. However, NAs pop up to the
upper rows when doing

> data.frame(Rating=1:dim(test)[1],test[rev(order(test$Score)),])
  Rating Name Score
4      1    d    NA
2      2    b    NA
5      3    e    10
1      4    a     7
3      5    c     5

Is there an elegant way to place NAs in the lowest rows? And BTW how
can I remove the first column of 4, 2, 5 etc?

Best regards,
 Remigijus                          mailto:remigijus.lapinskas at maf.vu.lt


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