R CMD check returns NOTE about package data set as global variable

OK, thanks for the tip on good coding practice. I'm still getting the NOTE though when I make the suggested change.
Hm? It's not like Brian to get such things wrong, did you check properly?

Perhaps the code checker is not smart enough to know that data() creates global variables. (That would be heuristic at best. You can't actually be sure that data() creates objects with the name given as the argument -- in fact, several objects might be created, possibly none named as the argument). 

You are not using LazyData, right?  You might consider doing that and forgetting about data() entirely.
In case it matters, I'm check'ing with

R version 2.15.0 (2012-03-30)
Platform: i386-pc-mingw32/i386 (32-bit)

Brad

----- Original Message -----
From: "Prof Brian Ripley" <ripley at stats.ox.ac.uk>
To: "Brad McNeney" <mcneney at sfu.ca>
Cc: r-devel at r-project.org
Sent: Friday, 6 April, 2012 12:18:14 PM
Subject: Re: [Rd] R CMD check returns NOTE about package data set as global variable

On 06/04/2012 19:46, Brad McNeney wrote:
I'm developing a package that comes with a data set called
RutgersMapB36. One of the package's functions requires this data
frame. A toy example is:

test<-function() {
  data(RutgersMapB36)
  return(RutgersMapB36[,1])
}

R CMD check returns a NOTE:

test: no visible binding for global variable 'RutgersMapB36'

Is there any way to avoid this NOTE?
Use data("RutgersMapB36"), which many think is good practice in code.

Thanks,

Brad
---
Brad McNeney
Statistics and Actuarial Science
Simon Fraser University

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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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R CMD check returns NOTE about package data set as global variable

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