[R-sig-Geo] Problem to Read maptools Help

[Roger Bivand]

On Wed, 10 Feb 2010, gianni lavaredo wrote:

> Dear researchers
> I download the new version of R 2.10.1 and I have a problem to read maptools
> Help as the older version
>
> thanks for attention
> Gianni
>
>> library(maptools)
> Carico il pacchetto richiesto: foreign
> Carico il pacchetto richiesto: sp
> Carico il pacchetto richiesto: lattice
>> ?maptools
> No documentation for 'maptools' in specified packages and libraries:
> you could try '??maptools'
>>

The function is removed from the namespace and its help page is removed 
to:

file.show(system.file("old_man/maptools.Rd", package="maptools"))

To use the function, do:

maptools:::maptools()

if you must, but you can more easily use:

packageDescription("maptools")

to find out what the package version is. It has been made redundant by 
packages now using Changelogs, so:

file.show(system.file("ChangeLog", package="maptools"))

automatically shows which changes have been made and when.

Hope this helps,

Roger

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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no