[R] Question concerning Loading large Data Sets

[Eric Berger]

I don't think I understand your question.
What if you enter

class(anno)

Does that give anything?


On Mon, May 6, 2019 at 2:29 AM David Winsemius <dwinsemius using comcast.net>
wrote:

> I wouldn’t have expected an message, but it does raise the question: why
> are you making two different copies of the same text file if you are
> concerned about size issues?
>
> —
> David
>
> Sent from my iPhone
>
> > On May 5, 2019, at 5:14 PM, Spencer Brackett <
> spbrackett20 using saintjosephhs.com> wrote:
> >
> > Also,
> >
> > In case there is any confusion... "~/Vakul's GBM code" was set up in the
> > working directory (via setwd) as the folder in which the file
> 'mapper.txt'
> > is contained... thereby making the "~/Vakul's GBM code/mapper.txt" as
> > shown.
> >
> > Should I perhaps reset my working directory to the file I'm trying to
> > access, exclusively?
> >
> > On Sun, May 5, 2019 at 7:09 PM Spencer Brackett <
> > spbrackett20 using saintjosephhs.com> wrote:
> >
> >> Good evening,
> >>
> >> I am attempting to reproduce the following lines of code...
> >>
> >> library(data.table)
> >> anno = as.data.frame(fread(file = "file name", sep ="\t", header = T))
> >>
> >>
> >> The following is my attempt...
> >>
> >>> library(data.table)
> >>> mapper <- read.delim("~/Vakul's GBM code/mapper.txt")
> >>>  View(mapper)
> >> ## fread() was used as datset is quite large ##
> >>> GBM_meth <- fread("~/Vakul's GBM code/mapper.txt")
> >>> anno = as.data.frame(fread(file = "~/Vakul's GBM code/mapper.txt", sep
> >> ="\t", header = T))
> >>
> >> Via View(mapper), I can view the dataset contained within the
> "mapper.txt"
> >> file, but the >anno = as.data.frame portion does not trigger any sort of
> >> 'response' on R and simply brings my cursor down to the next line, ready
> >> for further implementation. Should I be getting some sort of output
> from R,
> >> and if so what should I expect?
> >>
> >> I apologize in advance for any errors in the summary of the above script
> >>
> >> Best,
> >>
> >> Spencer Brackett
> >>
> >
> >    [[alternative HTML version deleted]]
> >
> > ______________________________________________
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> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help using 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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