question about Software for Data analysis book

Dear R People:

I'm sure that this is a very silly question, but I'm reading the
Software for Data analysis book by John Chambers, and I can't find the
"Declination" data that he refers to on page 15 in the book.

I did all of the usual stuff:

library(help=SoDA)

??Declination

I downloaded SoDA and did a search of the package directory. There is  
code referring to the Declination column of a mars dataframe. Trying:

require(SoDA)
## requires mars data.frame
SoDA:::.getMarsData()

# I get an error

Then I see in the package docs:
"Details
Note that not all the examples shown in the book correspond to an  
explicit example ?le. Also, some
of the data sets used are not explicitly open-source and so are not  
included in this package. For
example, the mars data exists on the web as an Excel ?le; you need to  
export that as a ".csv"
?le to run the corresponding examples. "

Presumably you need to follow directions that are not in the package  
docs but must be in the book.

--
David.

looked for it online but to no avail.

Has anyone else run into this, please?

Any help would be much appreciated.

Thanks,
Erin


-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodgess at gmail.com

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