[R] About error in the panel

[lily li]

I think this is the problem. How to solve then?

On Sat, Mar 11, 2017 at 12:18 PM, Bert Gunter <bgunter.4567 at gmail.com>
wrote:

> Typo, should be:
>
> 3. A guess: You are sourcing the entire script in the editor panel
> into R, and there is something screwed up there.
>
> -- Bert
>
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along
> and sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Sat, Mar 11, 2017 at 11:14 AM, lily li <chocold12 at gmail.com> wrote:
> > Thanks for your reply. I thought anything about R questions can be posted
> > here.
> >
> > About your third point, what does it mean? I did the same thing before
> for
> > other scripts, but this one does not work. Thanks again.
> >
> > On Sat, Mar 11, 2017 at 12:12 PM, Bert Gunter <bgunter.4567 at gmail.com>
> > wrote:
> >>
> >> 1. Not reproducible, hence impossible to say.
> >>
> >> 2. This is r-help. RStudio is totally separate and its own support page.
> >>
> >> 3. A guess: Use are sourcing the entire script in the editor panel
> >> into R, and there is something screwed up there.
> >>
> >> Cheers,
> >> Bert
> >>
> >>
> >> Bert Gunter
> >>
> >> "The trouble with having an open mind is that people keep coming along
> >> and sticking things into it."
> >> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
> >>
> >>
> >> On Sat, Mar 11, 2017 at 10:50 AM, lily li <chocold12 at gmail.com> wrote:
> >> > Hi R users,
> >> >
> >> > I have a problem about using R studio. For example, there is a
> dataframe
> >> > that has many columns. I want to aggregated column X and column Y into
> >> > column Z. Column Z does not exist before the aggregation. I use the
> code
> >> > below:
> >> > df$Z = df$X + df$Y
> >> >
> >> > However, it does not work in the top left panel in Rstudio, and has
> the
> >> > following warning message:
> >> > Error in `$<-.data.frame`(`*tmp*`, "Z", value = numeric(0)) :
> >> >   replacement has 0 rows, data has 34333
> >> >
> >> > If I type the same code in the Console panel (bottom left panel), it
> >> > works.
> >> > How to deal with this problem? Thanks.
> >> >
> >> >         [[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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