Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Duncan Murdoch

On 13-06-25 6:50 AM, Søren Højsgaard wrote:

Dear all,
In my gRbase package I have up until now Depend-ed on RBGL (from Bioconductor), but 
good people have convinced me that I should use Import-it instead because I only use 
few functions from RBGL.

In DESCRIPTION I therefore now have
Imports: Matrix,RBGL

In NAMESPACE I now have
importFrom(RBGL, maxClique, is.triangulated, separates)

The package compiles without complaints, but I have noticed that if I start a fresh 
R-session, then maxClique etc. from RBGL is NOT available for interactive use 
in my session:

library(gRbase)
maxClique

Error: object 'maxClique' not found

1) Is this as it should be?

2) If yes, is there any other way in which maxClique can be imported for 
interactive use without Depend-ing the whole RBGL package?


The importFrom directive effectively makes local copies of those 
functions in your package (with the usual caveats that copies aren't as 
inefficient as you might think).  If you want to export them, you need 
to add them to the exports list.


Duncan Murdoch

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Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Søren Højsgaard
Dear Duncan,

Excellent, thanks! 

Maybe this is worth a remark in a future version of Writing R Extensions 
(including that those local copies are not exported again with 
exportPattern(^[[:alpha:]]+)). 

Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com] 
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:
 Dear all,
 In my gRbase package I have up until now Depend-ed on RBGL (from 
 Bioconductor), but good people have convinced me that I should use 
 Import-it instead because I only use few functions from RBGL.

 In DESCRIPTION I therefore now have
 Imports: Matrix,RBGL

 In NAMESPACE I now have
 importFrom(RBGL, maxClique, is.triangulated, separates)

 The package compiles without complaints, but I have noticed that if I start a 
 fresh R-session, then maxClique etc. from RBGL is NOT available for 
 interactive use in my session:
 library(gRbase)
 maxClique
 Error: object 'maxClique' not found

 1) Is this as it should be?

 2) If yes, is there any other way in which maxClique can be imported for 
 interactive use without Depend-ing the whole RBGL package?

The importFrom directive effectively makes local copies of those functions in 
your package (with the usual caveats that copies aren't as inefficient as you 
might think).  If you want to export them, you need to add them to the exports 
list.

Duncan Murdoch

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Duncan Murdoch

On 13-06-25 7:14 AM, Søren Højsgaard wrote:

Dear Duncan,

Excellent, thanks!

Maybe this is worth a remark in a future version of Writing R Extensions (including that those 
local copies are not exported again with exportPattern(^[[:alpha:]]+)).


It is mentioned that they can be exported.  The fact that exportPattern 
doesn't see them might be a bug.


Duncan



Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:

Dear all,
In my gRbase package I have up until now Depend-ed on RBGL (from Bioconductor), but 
good people have convinced me that I should use Import-it instead because I only use 
few functions from RBGL.

In DESCRIPTION I therefore now have
Imports: Matrix,RBGL

In NAMESPACE I now have
importFrom(RBGL, maxClique, is.triangulated, separates)

The package compiles without complaints, but I have noticed that if I start a fresh 
R-session, then maxClique etc. from RBGL is NOT available for interactive use 
in my session:

library(gRbase)
maxClique

Error: object 'maxClique' not found

1) Is this as it should be?

2) If yes, is there any other way in which maxClique can be imported for 
interactive use without Depend-ing the whole RBGL package?


The importFrom directive effectively makes local copies of those functions in 
your package (with the usual caveats that copies aren't as inefficient as you 
might think).  If you want to export them, you need to add them to the exports 
list.

Duncan Murdoch



__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread luke-tierney

On Tue, 25 Jun 2013, Duncan Murdoch wrote:


On 13-06-25 7:14 AM, Søren Højsgaard wrote:

Dear Duncan,

Excellent, thanks!

Maybe this is worth a remark in a future version of Writing R Extensions 
(including that those local copies are not exported again with 
exportPattern(^[[:alpha:]]+)).


It is mentioned that they can be exported.  The fact that exportPattern 
doesn't see them might be a bug.


I don't think it's a bug -- including all imports would usually bring
in way too much.

In general re-exporting is probably not such a great idea since the
help system isn't aware of the import/export chain. I don't know if R
CMD check complains if you don't provide your own help page; if it
doesn't it probably should.  I also don't recall if we have a
mechanism for such a help page on an import/export to just link to the
real page.

Best,

luke




Duncan



Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:

Dear all,
In my gRbase package I have up until now Depend-ed on RBGL (from 
Bioconductor), but good people have convinced me that I should use 
Import-it instead because I only use few functions from RBGL.


In DESCRIPTION I therefore now have
Imports: Matrix,RBGL

In NAMESPACE I now have
importFrom(RBGL, maxClique, is.triangulated, separates)

The package compiles without complaints, but I have noticed that if I 
start a fresh R-session, then maxClique etc. from RBGL is NOT available 
for interactive use in my session:

library(gRbase)
maxClique

Error: object 'maxClique' not found

1) Is this as it should be?

2) If yes, is there any other way in which maxClique can be imported for 
interactive use without Depend-ing the whole RBGL package?


The importFrom directive effectively makes local copies of those functions 
in your package (with the usual caveats that copies aren't as inefficient 
as you might think).  If you want to export them, you need to add them to 
the exports list.


Duncan Murdoch



__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.



--
Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa  Phone: 319-335-3386
Department of Statistics andFax:   319-335-3017
   Actuarial Science
241 Schaeffer Hall  email:   luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW:  http://www.stat.uiowa.edu__
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and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Martin Morgan

On 06/25/2013 01:19 PM, Duncan Murdoch wrote:

On 13-06-25 7:14 AM, Søren Højsgaard wrote:

Dear Duncan,

Excellent, thanks!

Maybe this is worth a remark in a future version of Writing R Extensions
(including that those local copies are not exported again with
exportPattern(^[[:alpha:]]+)).


It is mentioned that they can be exported.  The fact that exportPattern doesn't
see them might be a bug.


In some ways I would have expected R CMD check to complain that maxClique was 
not documented, because after all the user can have access to maxClique (after 
library(gRbase)) but not have access to it's documentation


 library(PkgA) ## Imports: RBGL; importFrom(RBGL, maxClique); export(maxClique)
 ?maxClique
No documentation for 'maxClique' in specified packages and libraries:
you could try '??maxClique'
 R.version.string
[1] R Under development (unstable) (2013-06-25 r63053)

Personally, if the intention is to make functionality of RBGL available to the 
end user (even a small part) then I would have Depends: RBGL. Regardless of 
whether RBGL appears in the Depends: or Imports: field of the DESCRIPTION, I
would have import'ed maxClique into the gRbase name space (so that function 
resolution occurs correctly within the package, even when gRbase is import'ed 
into another package). Having two apparent ways of arriving at the same function 
(gRbase::maxClique, RBGL::maxClique) seems to be inviting confusion.


Martin



Duncan



Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:

Dear all,
In my gRbase package I have up until now Depend-ed on RBGL (from
Bioconductor), but good people have convinced me that I should use
Import-it instead because I only use few functions from RBGL.

In DESCRIPTION I therefore now have
Imports: Matrix,RBGL

In NAMESPACE I now have
importFrom(RBGL, maxClique, is.triangulated, separates)

The package compiles without complaints, but I have noticed that if I start a
fresh R-session, then maxClique etc. from RBGL is NOT available for
interactive use in my session:

library(gRbase)
maxClique

Error: object 'maxClique' not found

1) Is this as it should be?

2) If yes, is there any other way in which maxClique can be imported for
interactive use without Depend-ing the whole RBGL package?


The importFrom directive effectively makes local copies of those functions in
your package (with the usual caveats that copies aren't as inefficient as you
might think).  If you want to export them, you need to add them to the exports
list.

Duncan Murdoch



__
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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--
Computational Biology / Fred Hutchinson Cancer Research Center
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Phone: (206) 667-2793

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Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Søren Højsgaard
R CMD check does complain and I had to add \alias{maxClique} in an .Rd file (I 
did it this way to prevent downstream packages from failing).
Regards
Søren


-Original Message-
From: luke-tier...@uiowa.edu [mailto:luke-tier...@uiowa.edu] 
Sent: 25. juni 2013 15:50
To: Duncan Murdoch
Cc: Søren Højsgaard; R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On Tue, 25 Jun 2013, Duncan Murdoch wrote:

 On 13-06-25 7:14 AM, Søren Højsgaard wrote:
 Dear Duncan,
 
 Excellent, thanks!
 
 Maybe this is worth a remark in a future version of Writing R Extensions 
 (including that those local copies are not exported again with 
 exportPattern(^[[:alpha:]]+)).

 It is mentioned that they can be exported.  The fact that 
 exportPattern doesn't see them might be a bug.

I don't think it's a bug -- including all imports would usually bring in way 
too much.

In general re-exporting is probably not such a great idea since the help system 
isn't aware of the import/export chain. I don't know if R CMD check complains 
if you don't provide your own help page; if it doesn't it probably should.  I 
also don't recall if we have a mechanism for such a help page on an 
import/export to just link to the real page.

Best,

luke



 Duncan

 
 Thanks!
 
 Søren
 
 -Original Message-
 From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
 Sent: 25. juni 2013 13:02
 To: Søren Højsgaard
 Cc: R hELP (r-h...@stat.math.ethz.ch)
 Subject: Re: [R] Issue with Imports in NAMESPACE
 
 On 13-06-25 6:50 AM, Søren Højsgaard wrote:
 Dear all,
 In my gRbase package I have up until now Depend-ed on RBGL (from 
 Bioconductor), but good people have convinced me that I should use 
 Import-it instead because I only use few functions from RBGL.
 
 In DESCRIPTION I therefore now have
 Imports: Matrix,RBGL
 
 In NAMESPACE I now have
 importFrom(RBGL, maxClique, is.triangulated, separates)
 
 The package compiles without complaints, but I have noticed that if 
 I start a fresh R-session, then maxClique etc. from RBGL is NOT 
 available for interactive use in my session:
 library(gRbase)
 maxClique
 Error: object 'maxClique' not found
 
 1) Is this as it should be?
 
 2) If yes, is there any other way in which maxClique can be imported 
 for interactive use without Depend-ing the whole RBGL package?
 
 The importFrom directive effectively makes local copies of those 
 functions in your package (with the usual caveats that copies aren't 
 as inefficient as you might think).  If you want to export them, you 
 need to add them to the exports list.
 
 Duncan Murdoch
 

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide 
 http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.


--
Luke Tierney
Chair, Statistics and Actuarial Science
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa  Phone: 319-335-3386
Department of Statistics andFax:   319-335-3017
Actuarial Science
241 Schaeffer Hall  email:   luke-tier...@uiowa.edu
Iowa City, IA 52242 WWW:  http://www.stat.uiowa.edu

__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Prof Brian Ripley

On 25/06/2013 14:50, luke-tier...@uiowa.edu wrote:

On Tue, 25 Jun 2013, Duncan Murdoch wrote:


On 13-06-25 7:14 AM, Søren Højsgaard wrote:

Dear Duncan,

Excellent, thanks!

Maybe this is worth a remark in a future version of Writing R
Extensions (including that those local copies are not exported
again with exportPattern(^[[:alpha:]]+)).


It is mentioned that they can be exported.  The fact that
exportPattern doesn't see them might be a bug.


I don't think it's a bug -- including all imports would usually bring
in way too much.


Not least as most packages import way too much (they import whole 
packages unselectively).


Namespace scoping helps a lot with code in packages, but not with code 
in examples and demos.  I believe that if you want to use maxClique from 
RBGL other than in the package's own functions you should either use 
RBGL::maxclique or put RBGL on the search path: but I don't think gRbase 
should do it for you.



In general re-exporting is probably not such a great idea since the
help system isn't aware of the import/export chain. I don't know if R
CMD check complains if you don't provide your own help page; if it


It does, as Søren found out when he submitted to CRAN.


doesn't it probably should.  I also don't recall if we have a
mechanism for such a help page on an import/export to just link to the
real page.


We do, the \link[RBGL]{maxClique} form.



Best,

luke




Duncan



Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:

Dear all,
In my gRbase package I have up until now Depend-ed on RBGL (from
Bioconductor), but good people have convinced me that I should use
Import-it instead because I only use few functions from RBGL.

In DESCRIPTION I therefore now have
Imports: Matrix,RBGL

In NAMESPACE I now have
importFrom(RBGL, maxClique, is.triangulated, separates)

The package compiles without complaints, but I have noticed that if
I start a fresh R-session, then maxClique etc. from RBGL is NOT
available for interactive use in my session:

library(gRbase)
maxClique

Error: object 'maxClique' not found

1) Is this as it should be?

2) If yes, is there any other way in which maxClique can be imported
for interactive use without Depend-ing the whole RBGL package?


The importFrom directive effectively makes local copies of those
functions in your package (with the usual caveats that copies aren't
as inefficient as you might think).  If you want to export them, you
need to add them to the exports list.

Duncan Murdoch



__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.





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--
Brian D. Ripley,  rip...@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, UKFax:  +44 1865 272595

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Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Duncan Murdoch

On 25/06/2013 1:03 PM, Duncan Murdoch wrote:

On 25/06/2013 7:14 AM, Søren Højsgaard wrote:
 Dear Duncan,

 Excellent, thanks!

 Maybe this is worth a remark in a future version of Writing R Extensions (including that those 
local copies are not exported again with exportPattern(^[[:alpha:]]+)).

Yes, from the followup discussion it's clear that this is desired
behaviour, so I'll add that.


No I won't:  Brian Ripley got there first.

Duncan Murdoch


Duncan

 Thanks!

 Søren

 -Original Message-
 From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
 Sent: 25. juni 2013 13:02
 To: Søren Højsgaard
 Cc: R hELP (r-h...@stat.math.ethz.ch)
 Subject: Re: [R] Issue with Imports in NAMESPACE

 On 13-06-25 6:50 AM, Søren Højsgaard wrote:
  Dear all,
  In my gRbase package I have up until now Depend-ed on RBGL (from Bioconductor), but 
good people have convinced me that I should use Import-it instead because I only use few 
functions from RBGL.
 
  In DESCRIPTION I therefore now have
  Imports: Matrix,RBGL
 
  In NAMESPACE I now have
  importFrom(RBGL, maxClique, is.triangulated, separates)
 
  The package compiles without complaints, but I have noticed that if I start a fresh 
R-session, then maxClique etc. from RBGL is NOT available for interactive use in my 
session:
  library(gRbase)
  maxClique
  Error: object 'maxClique' not found
 
  1) Is this as it should be?
 
  2) If yes, is there any other way in which maxClique can be imported for 
interactive use without Depend-ing the whole RBGL package?

 The importFrom directive effectively makes local copies of those functions in 
your package (with the usual caveats that copies aren't as inefficient as you 
might think).  If you want to export them, you need to add them to the exports 
list.

 Duncan Murdoch



__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Duncan Murdoch

On 25/06/2013 7:14 AM, Søren Højsgaard wrote:

Dear Duncan,

Excellent, thanks!

Maybe this is worth a remark in a future version of Writing R Extensions (including that those 
local copies are not exported again with exportPattern(^[[:alpha:]]+)).


Yes, from the followup discussion it's clear that this is desired 
behaviour, so I'll add that.


Duncan


Thanks!

Søren

-Original Message-
From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
Sent: 25. juni 2013 13:02
To: Søren Højsgaard
Cc: R hELP (r-h...@stat.math.ethz.ch)
Subject: Re: [R] Issue with Imports in NAMESPACE

On 13-06-25 6:50 AM, Søren Højsgaard wrote:
 Dear all,
 In my gRbase package I have up until now Depend-ed on RBGL (from Bioconductor), but 
good people have convinced me that I should use Import-it instead because I only use few 
functions from RBGL.

 In DESCRIPTION I therefore now have
 Imports: Matrix,RBGL

 In NAMESPACE I now have
 importFrom(RBGL, maxClique, is.triangulated, separates)

 The package compiles without complaints, but I have noticed that if I start a fresh 
R-session, then maxClique etc. from RBGL is NOT available for interactive use in 
my session:
 library(gRbase)
 maxClique
 Error: object 'maxClique' not found

 1) Is this as it should be?

 2) If yes, is there any other way in which maxClique can be imported for 
interactive use without Depend-ing the whole RBGL package?

The importFrom directive effectively makes local copies of those functions in 
your package (with the usual caveats that copies aren't as inefficient as you 
might think).  If you want to export them, you need to add them to the exports 
list.

Duncan Murdoch


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] Issue with Imports in NAMESPACE

2013-06-25 Thread Bryan Hanson
By chance is any of this related to what I'll call the 'depends relay' 
discussed in this SO post?

http://stackoverflow.com/a/8638902/633251 (see the 'caveat' to Josh O'Brien's 
answer, which also links back to another answer by Martin Morgan).

This issue has happened to me and the symptoms are exactly as Soren originally 
reported them on this thread  (try to do the 'right' thing but be thwarted).

Bryan

On Jun 25, 2013, at 1:03 PM, Duncan Murdoch murdoch.dun...@gmail.com wrote:

 On 25/06/2013 7:14 AM, Søren Højsgaard wrote:
 Dear Duncan,
 
 Excellent, thanks!
 
 Maybe this is worth a remark in a future version of Writing R Extensions 
 (including that those local copies are not exported again with 
 exportPattern(^[[:alpha:]]+)).
 
 Yes, from the followup discussion it's clear that this is desired behaviour, 
 so I'll add that.
 
 Duncan
 
 Thanks!
 
 Søren
 
 -Original Message-
 From: Duncan Murdoch [mailto:murdoch.dun...@gmail.com]
 Sent: 25. juni 2013 13:02
 To: Søren Højsgaard
 Cc: R hELP (r-h...@stat.math.ethz.ch)
 Subject: Re: [R] Issue with Imports in NAMESPACE
 
 On 13-06-25 6:50 AM, Søren Højsgaard wrote:
  Dear all,
  In my gRbase package I have up until now Depend-ed on RBGL (from 
  Bioconductor), but good people have convinced me that I should use 
  Import-it instead because I only use few functions from RBGL.
 
  In DESCRIPTION I therefore now have
  Imports: Matrix,RBGL
 
  In NAMESPACE I now have
  importFrom(RBGL, maxClique, is.triangulated, separates)
 
  The package compiles without complaints, but I have noticed that if I 
  start a fresh R-session, then maxClique etc. from RBGL is NOT available 
  for interactive use in my session:
  library(gRbase)
  maxClique
  Error: object 'maxClique' not found
 
  1) Is this as it should be?
 
  2) If yes, is there any other way in which maxClique can be imported for 
  interactive use without Depend-ing the whole RBGL package?
 
 The importFrom directive effectively makes local copies of those functions 
 in your package (with the usual caveats that copies aren't as inefficient as 
 you might think).  If you want to export them, you need to add them to the 
 exports list.
 
 Duncan Murdoch
 
 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.

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