[R] simultaneous actions of grep ???

[Stephen Tucker]

My mistake... last alternative should be:

   c<-subset(c,regexpr("\\.1|\\.5|\\.6|\\.99999",rownames(c)) < 0)

--- Stephen Tucker <brown_emu at yahoo.com> wrote:

> You can list them together using "|" (which stands for 'or'):
> 
>   c<-subset(c,!rownames(c) %in%
> grep(".1|.5|.6|.99999",rownames(c),value=T))
> 
> but "." means any character for regular expressions, so if you meant a
> decimal place, you probably want to escape them with a "\\":
> 
>   c<-subset(c,!rownames(c) %in%
>             grep("\\.1|\\.5|\\.6|\\.99999", rownames(c),value=T))
> 
> Another option is
> 
>   c<-subset(c,regexpr("\\.1|\\.5|\\.6|\\.99999",c) < 0)
> 
> because regexpr will return -1 for elements which do not contain a match.
> 
> 
> --- Ana Patricia Martins <ana.pmartins at ine.pt> wrote:
> 
> > Hello R-users and developers,
> > 
> > Once again, I'm asking for your help.
> > 
> > There is other way to do the same more easily for applied simultaneous
> > grep???
> >   
> >     c<-subset(c,!rownames(c) %in% grep(".1",rownames(c),value=T))
> >     c<-subset(c,!rownames(c) %in% grep(".5",rownames(c),value=T))
> >     c<-subset(c,!rownames(c) %in% grep(".6",rownames(c),value=T))
> >     c<-subset(c,!rownames(c) %in% grep(".99999",rownames(c),value=T))
> > 
> > Thanks in advance for helping me.
> > 
> > Atenciosamente,
> > Ana Patricia Martins
> > -------------------------------------------
> > Serviço Métodos Estatísticos
> > Departamento de Metodologia Estatística
> > INE - Portugal
> > Telef:  218 426 100 - Ext: 3210
> > E-mail: ana.pmartins at ine.pt <mailto:ana.pmartins at ine.pt> 
> > 
> > 
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> > 
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