[R] Using options(max.print = 1000000) to read in data

[Spencer Brackett]

Thank you,

Here is a summary of the resulting output....

>nrow(GBM.txt)
[1] 20530
> ncol(GBM.txt)
[1] 173

This corresponds with the info found in my global environment for the
object indicated. Now, how do I go about determining if the dataset is a
matrix?


On Mon, Jul 8, 2019 at 10:16 AM Kevin Thorpe <kevin.thorpe using utoronto.ca>
wrote:

>
> > On Jul 8, 2019, at 10:06 AM, Spencer Brackett <
> spbrackett20 using saintjosephhs.com> wrote:
> >
> > Hello,
> >
> >  I am trying to reload some data into R in order to check to see if it is
> > formatted as a matrix. I used the command options(max.print = 10000000)
> to
> > account for the 20,000 some rows omitted previously when just using the
> > basic version of this function. After entering this command, the dataset
> > mostly loaded into R, but 14717 rows were still omitted.
> >
> >  Can I simply increase the number indicted after 'max.print =' to read in
> > the remaining rows, or should I use 'bigfile.sample <-' or
> > 'bigfile.colclass <-' instead? Do I even need to read in all of the rows
> to
> > test for a matrix?
> >
> > Best,
> >
> > Spencer
> >
>
> I don’t think this option affects how much data is read in, just how much
> is printed to the screen. Use the function str() on your imported object to
> see how many rows, among other things, were brought in.
>
>
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> >
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>
> --
> Kevin E. Thorpe
> Head of Biostatistics,  Applied Health Research Centre (AHRC)
> Li Ka Shing Knowledge Institute of St. Michael's
> Assistant Professor, Dalla Lana School of Public Health
> University of Toronto
> email: kevin.thorpe using utoronto.ca  Tel: 416.864.5776  Fax: 416.864.3016
>
>

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