[R] Removing display of R row names from list.

PIKAL Petr petr.pikal at precheza.cz
Thu Jul 30 11:23:27 CEST 2015


Hi

AFAIK you can not **remove** row names from data frame. You can suppress their printingas other adviced or you can rename row names.

> lev
  animals animalYears ind
1    bird           1   2
2     cat           1   2
3     dog           1   2
4    bird           2   2
5     cat           2   2
6     dog           2   2
> rownames(lev)<-11:16
> lev
   animals animalYears ind
11    bird           1   2
12     cat           1   2
13     dog           1   2
14    bird           2   2
15     cat           2   2
16     dog           2   2
>

Cheers
Petr

> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
> Frederic Ntirenganya
> Sent: Thursday, July 30, 2015 10:41 AM
> To: Bert Gunter
> Cc: r-help at r-project.org
> Subject: Re: [R] Removing display of R row names from list.
>
> I want to remove the rownames after incrementation. Thanks
>
> Frederic Ntirenganya
> Maseno University,
> African Maths Initiative,
> Kenya.
> Mobile:(+254)718492836
> Email: fredo at aims.ac.za
> https://sites.google.com/a/aims.ac.za/fredo/
>
> On Wed, Jul 29, 2015 at 7:04 PM, Bert Gunter <bgunter.4567 at gmail.com>
> wrote:
>
> > Is this what you mean?
> >
> > z <- data.frame(a=1:3,b=letters[1:3],row.names=letters[1:3])
> > zlist <- list(one=z,too =z)
> >
> > for(i in 1:2){print(zlist[[i]],row.names=FALSE); cat("\n")}
> >
> >  a b
> >  1 a
> >  2 b
> >  3 c
> >
> >  a b
> >  1 a
> >  2 b
> >  3 c
> >
> > ... which could obviously be within a function.
> >
> > Cheers,
> > Bert
> > Bert Gunter
> >
> > "Data is not information. Information is not knowledge. And knowledge
> > is certainly not wisdom."
> >    -- Clifford Stoll
> >
> >
> > On Wed, Jul 29, 2015 at 8:32 AM, John Kane <jrkrideau at inbox.com>
> wrote:
> > > Beats me.  You can print a single data frame with print(dat1,
> > > rownames = FALSE) but it is not clear to me how to do it
> > within a function.
> > >
> > > I am sure someone who actually know what they are doing will be
> > > along in
> > a moment. Sorry not to have been of more help.
> > >
> > > John Kane
> > > Kingston ON Canada
> > >
> > > -----Original Message-----
> > > From: ntfredo at gmail.com
> > > Sent: Wed, 29 Jul 2015 18:11:36 +0300
> > > To: jrkrideau at inbox.com
> > > Subject: Re: [R] Removing display of R row names from list.
> > >
> > > Here is a small example. it is not the real data I am working on
> but
> > this can help
> > >
> > > #Chick weight example
> > >
> > > names(ChickWeight) <- tolower(names(ChickWeight)) chick_m <-
> > > melt(ChickWeight, id=2:4, na.rm=TRUE)
> > > class(chick_m)
> > >
> > > test = function(data){
> > >   i = 1
> > >   table = list()
> > >   table [[i]] <- dcast(chick_m, time ~ variable, mean)
> > >   i = i + 1
> > >
> > >   print(table)
> > >
> > > }
> > > test(chick_m )
> > >
> > > Frederic Ntirenganya
> > > Maseno University,
> > >
> > > African Maths Initiative,
> > >
> > > Kenya.
> > >
> > > Mobile:(+254)718492836
> > >
> > > Email: fredo at aims.ac.za
> > >
> > > https://sites.google.com/a/aims.ac.za/fredo/ [
> > https://sites.google.com/a/aims.ac.za/fredo/]
> > >
> > > On Wed, Jul 29, 2015 at 5:12 PM, John Kane <jrkrideau at inbox.com>
> wrote:
> > >
> > >         HI Frederic,
> > >  Can you supply a small example of the problem?
> > >
> > >  John Kane
> > >  Kingston ON Canada
> > >
> > >  > -----Original Message-----
> > >  > From: ntfredo at gmail.com
> > >  > Sent: Wed, 29 Jul 2015 14:15:58 +0300  > To: r-help at r-
> project.org
> > > > Subject: [R] Removing display of R row names from list.
> > >  >
> > >  >  Dear All,
> > >  >
> > >  > Is there a way to not include the row names when creating the
> list?
> > >  > Thanks!
> > >  >
> > >  > Regards,
> > >  > Frederic.
> > >  >
> > >  > Frederic Ntirenganya
> > >  > Maseno University,
> > >  > African Maths Initiative,
> > >  > Kenya.
> > >  > Mobile:(+254)718492836
> > >  > Email: fredo at aims.ac.za
> > >  > https://sites.google.com/a/aims.ac.za/fredo/ [
> > https://sites.google.com/a/aims.ac.za/fredo/]
> > >  >
> > >  >       [[alternative HTML version deleted]]
> > >  >
> > >  > ______________________________________________
> > >  > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more,
> see
> > > > https://stat.ethz.ch/mailman/listinfo/r-help [
> > https://stat.ethz.ch/mailman/listinfo/r-help]
> > >  > PLEASE do read the posting guide
> > >  > http://www.R-project.org/posting-guide.html [
> > http://www.R-project.org/posting-guide.html]
> > >  > and provide commented, minimal, self-contained, reproducible
> code.
> > >
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> > > and provide commented, minimal, self-contained, reproducible code.
> >
>
>       [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.

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