[R] using data() in an example

[ripley@stats.ox.ac.uk]

?data says

        4.  files ending `.csv' are read using `read.table(..., header
           = TRUE, sep = ";")', and also result in a data frame.

That may well be found first, so you need to rename bailey.csv.

You don't tell us your OS, but it looks like Windows where sorts often 
have c before R in the default locale:
> sort(c(letters, LETTERS))
 [1] "a" "A" "b" "B" "c" "C" "d" "D" "e" "E" "f" "F" "g" "G" "h" "H" "i" "I" "j"
[20] "J" "k" "K" "l" "L" "m" "M" "n" "N" "o" "O" "p" "P" "q" "Q" "r" "R" "s" "S"
[39] "t" "T" "u" "U" "v" "V" "w" "W" "x" "X" "y" "Y" "z" "Z"


On Sun, 2 Mar 2003, Christopher Adolph wrote:

> 
> Hi all,
> 
> I'm trying to put together examples in an R package, and am having trouble
> reading data from the package's data directory.  The data are in
> comma-separated variable files, so to read a file like gw.csv, I include
> in the data directory both bailey.csv and a file bailey.R which contains:
> 
> bailey <- read.csv("bailey.csv",na.strings=".");
> 
> so that typing
> 
> data(bailey)
> 
> should load the data from bailey.csv.
> 
> The problem is that the data is being read in "wrong", as a single column,
> rather than a data frame with four columns.  I get:
> 
>    data.p1.p2.model
> 1        0.57,2,1,1
> 2        0.54,4,1,1
> 3        0.54,6,1,1
> 4        0.52,8,1,1
> 5       0.54,10,1,1
> 6       0.53,50,1,1
> 7        0.93,2,1,2
> 8        0.61,4,1,2
> 9        0.53,6,1,2
> 10       0.49,8,1,2
> 11      0.43,10,1,2
> 12      0.11,50,1,2
> 13       0.89,2,1,3
> 14       0.72,4,1,3
> 15       0.62,6,1,3
> 16       0.58,8,1,3
> 17      0.49,10,1,3
> 18      0.12,50,1,3
> 19       0.51,2,1,4
> 20       0.43,4,1,4
> 21       0.41,6,1,4
> 22       0.37,8,1,4
> 23      0.37,10,1,4
> 24      0.31,50,1,4
> 
> Which is wrong.  But if I use the very same command as above, but from the
> command line (without the data() wrapper), it comes in right:
> 
> > read.csv("c:/progra~1/R/library/seemc/data/bailey.csv",na.strings=".")
>    data p1 p2 model
> 1  0.57  2  1     1
> 2  0.54  4  1     1
> 3  0.54  6  1     1
> 4  0.52  8  1     1
> 5  0.54 10  1     1
> 6  0.53 50  1     1
> 7  0.93  2  1     2
> 8  0.61  4  1     2
> 9  0.53  6  1     2
> 10 0.49  8  1     2
> 11 0.43 10  1     2
> 12 0.11 50  1     2
> 13 0.89  2  1     3
> 14 0.72  4  1     3
> 15 0.62  6  1     3
> 16 0.58  8  1     3
> 17 0.49 10  1     3
> 18 0.12 50  1     3
> 19 0.51  2  1     4
> 20 0.43  4  1     4
> 21 0.41  6  1     4
> 22 0.37  8  1     4
> 23 0.37 10  1     4
> 24 0.31 50  1     4
> >
> 
> What could be causing this?  I just want to get the example working; in
> practice one wouldn't need to use the data() command for this package, but
> it seems to be the only reliable way to get stuff out of the data
> directory for running examples.  Any ideas?

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595