Re: [R] delete a row from a matrix

From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>
Date: Wed 13 Jul 2005 - 19:38:30 EST

Navarre Sabine <navarre_sabine@yahoo.fr> writes:

> Hi,
> I would like to know if it's possible to delete a rox from a matrix?
>
> > fig
> [,1] [,2] [,3] [,4]
> [1,] 0 1 0.0 0.2
> [2,] 0 1 0.2 0.8
> [3,] 0 1 0.8 1.0
> [4,] 0 1 NA NA
> [5,] 0 1 NA NA
>
> I would like to delete the 2 rows with NA!

fig <- fig[-c(4,5),]

or, more generally

fig <- fig[complete.cases(fig),]

or, even more generally

fig <- fig[!apply(is.na(fig), 1, any),]

-- 
   O__  ---- Peter Dalgaard             ุster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
 (*) \(*) -- University of Copenhagen   Denmark          Ph:  (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)                  FAX: (+45) 35327907

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Received on Wed Jul 13 19:44:27 2005

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