[R] can't find "daphnia.txt" and others while working through Crawley's R-Book

David Winsemius dwinsemius at comcast.net
Thu Apr 15 19:07:40 CEST 2010


On Apr 15, 2010, at 12:34 PM, David Hardie wrote:

> Thanks David, but I have searched my hard drive using the search  
> utility in Windows (not just c:\temp - the whole drive) for the file  
> in question and it is not there.  I have also used:
> data() to see the names of all dataframes in the datasets package as  
> well as:
> data(package=.packages(all.available=TRUE)) to see all available  
> data sets
> Both methods provide an extensive list, but not "daphnia.txt"
>
> -Dave

A google search suggested that it was at one time available here, and  
testing shows that it still is:

http://www.bio.ic.ac.uk/research/mjcraw/therbook/data/Daphnia.txt

Looking inside the first few pages of the book, it appears this should  
have been accessible from the book's associated website. I bought the  
book several months ago, but it has remained mostly unused because I  
found it quite limited in its depth of presentation of topics in which  
I had an interest.

-- 
David

>
> > CC: r-help at r-project.org
> > From: dwinsemius at comcast.net
> > To: dreamwaters at hotmail.com
> > Subject: Re: [R] can't find "daphnia.txt" and others while working  
> through Crawley's R-Book
> > Date: Thu, 15 Apr 2010 12:28:54 -0400
> >
> >
> > On Apr 15, 2010, at 11:42 AM, David Hardie wrote:
> >
> > >
> > > I have a feeling that this is an embarassingly simple fix, but  
> I've
> > > been at it for most of the morning and can't get things figured  
> out.
> > >
> > > I'm trying to work through some examples in Crawley's "The R  
> Book".
> > > I have installed packages and libraries as described in the book,
> > > but when I try, for example:
> > >
> > > data<-read.table("c:\\temp\\daphnia.txt", header=T)
> > >
> > >
> > > I get:
> > >
> > > Error in file(file, "rt") : cannot open the connection
> > > In addition: Warning message:
> > > In file(file, "rt") :
> > > cannot open file 'c:\temp\daphnia.txt': No such file or directory
> > >
> > >
> > > There is nothing in my c:\temp folder, so I'm not suprised that it
> > > doesn't work, but I can't for the life of me figure out which
> > > package or library I will need to gain access to this and other  
> data
> > > files used in this book.
> >
> > This would appear to be more a problem with you lack of  
> understanding
> > regarding the file management utilities of Windows. In Linux or a  
> Mac
> > you could use the locate function to track down where the file ended
> > up, but surely whatever Windows version you have allows such  
> searching.
> >
> > --
> > David.
> > >
> > >
> > >
> > > Thanks in advance,
> > >
> > > -Dave
> > >
> >
> >
> > David Winsemius, MD
> > West Hartford, CT
> >
>
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David Winsemius, MD
West Hartford, CT



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