data[-indexZZ,] as grep returns indices of the matching rows.
On Wed, 6 Aug 2003, Nolwenn Le Meur wrote:
> Hi everybody,
>
> Hope your are not all on holyday because I've got a problem that is going to
> drive me crazy...
Reading the documentation would avoid that!
> I would like to remove some rows from a dataframe. The rows correspond to
> some
> specific indexes which I can get by looking at the name in the first column
> of my dataset. But I manage to get only the opposite of what I really want
> (function #1)
>
> #Function#1:
> remove.func<-function(data){
> Name<-as.character(data[,1])
> indexZZ<-grep("ZZ",Name,value=FALSE)
> data<-data[indexZZ,] # give me what I don't want
> print(slide)
> }
>
> #Function#2:
> remove.func<-function(data,Name){
> Name<-as.character(data[,1])
> indexZZ<-grep("ZZ",Name,value=FALSE)
> data<-data[!indexZZ,] #doesn't work, give an empty dataframe
> print(slide)
> }
>
> Thanks :|
>
> Nolwenn Le Meur
>
> ********************************************
> Nolwenn Le Meur
> INSERM U533
> Faculté de médecine
> 1, rue Gaston Veil
> 44035 Nantes Cedex 1
> France
>
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>
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--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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