Using str(GBM.txt) produced the same output as last time, which lists the number of objects acting on a particular number of variables for the said dataset and a few rows read from the original file.
The result of class(GBM.txt) generates the following.. > class(GBM.txt) [1] "data.frame" Is this to say that the object is set as a 'data frame', opposed to a 'matrix' ? I will try running ?is.matrix now On Mon, Jul 8, 2019 at 10:33 AM Rui Barradas <ruipbarra...@sapo.pt> wrote: > Hello, > > Inline. > > Às 15:26 de 08/07/19, Spencer Brackett escreveu: > > 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? > > Try any of > > str(GBM.txt) > class(GBM.txt) > > Also, like Kevin said, max.print only affects how much is printed, not > the read functions. Why change max.print at all? The default value > (1000) is large enough, I have never needed to see more than this at a > time. In fact, to have an idea of the data I would rather further limit > the number of matrix lines printed with > > head(object) > tail(object) > > > > Hope this helps, > > Rui Barradas > > > > > > On Mon, Jul 8, 2019 at 10:16 AM Kevin Thorpe <kevin.tho...@utoronto.ca> > > wrote: > > > >> > >>> On Jul 8, 2019, at 10:06 AM, Spencer Brackett < > >> spbracket...@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. > >> > >> > >>> [[alternative HTML version deleted]] > >>> > >>> ______________________________________________ > >>> R-help@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. > >> > >> > >> -- > >> 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.tho...@utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016 > >> > >> > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@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. > > > [[alternative HTML version deleted]] ______________________________________________ R-help@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.
