Oh my, how embarrassing.  Thank you, and sorry about that.  I think I've
been staring at the screen too long.  :-)


On Fri, Nov 22, 2013 at 5:16 PM, Steven McKinney <smckinney@bccrc.ca> wrote:

> Hi Ann
>
> Looks like a typo - I see "moreley.tab" that should be "morley.tab".
> Works for me after correcting that.
>
> > filepath <- system.file("data", "moreley.tab", package="datasets")
> > filepath
> [1] ""
> >
> > filepath <- system.file("data", "morley.tab", package="datasets")
> > filepath
> [1] "C:/PROGRA~1/R/R-30~1.1/library/datasets/data/morley.tab"
> > mm <- read.table(filepath)
> > head(mm)
>     Expt Run Speed
> 001    1   1   850
> 002    1   2   740
> 003    1   3   900
> 004    1   4  1070
> 005    1   5   930
> 006    1   6   850
> >
>
>
> Steven McKinney
>
> Statistician
> Molecular Oncology and Breast Cancer Program
> British Columbia Cancer Research Centre
>
>
>
>
>
> > -----Original Message-----
> > From: r-sig-mac-bounces@r-project.org [mailto:r-sig-mac-bounces@r-
> > project.org] On Behalf Of Ann Summy
> > Sent: November-22-13 4:56 PM
> > To: r-sig-mac; r-help
> > Subject: [R-SIG-Mac] morley object?
> >
> > Brand new to R and not a sys admin or programmer type.  I am trying to
> work
> > through the intro tutorial in the sample session here
> > http://cran.r-project.org/doc/manuals/R-intro.html#A-sample-session.
> >
> > I have an error when following the instructions below:
> >
> > > The next section will look at data from the classical experiment of
> > > Michelson to measure the speed of light. This dataset is available in
> the
> > > morley object, but we will read it to illustrate the read.table
> function.
> > > filepath <- system.file("data", "morley.tab" ,
> > package="datasets")filepath
> > >
> > > Get the path to the data file.
> > > file.show(filepath)
> > >
> > > Optional. Look at the file.
> > > mm <- read.table(filepath)mm
> > >
> > > Read in the Michelson data as a data frame, and look at it. There are
> > five
> > > experiments (column Expt) and each has 20 runs (column Run) and sl is
> the
> > > recorded speed of light, suitably coded.
> > >
> > Here is my result:
> >
> > > > filepath <- system.file("data", "moreley.tab", package="datasets")
> >
> > > filepath
> >
> > [1] ""
> >
> > > file.show(filepath)
> >
> > > mm <- read.table(filepath)
> >
> > Error in read.table(filepath) : no lines available in input
> >
> > In addition: Warning message:
> >
> > In file(file, "rt") :
> >
> >   file("") only supports open = "w+" and open = "w+b": using the former
> >
> >
> > Is it because I am missing this "morley object"?  How do I see a list of
> > what objects I have installed?  I installed
> > R-2.15.3.pkg<http://cran.r-project.org/bin/macosx/old/R-2.15.3.pkg>,
> > because
> > I am teaching myself on a 32-bit Macbook.
> >
> >       [[alternative HTML version deleted]]
> >
> > _______________________________________________
> > R-SIG-Mac mailing list
> > R-SIG-Mac@r-project.org
> > https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>

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