The message is from maptools (as it says), not sp.
No, there is nothing you can do when dependent packages put out
messages. You could ask the maintainer not to put the message out
when rgeos is available ....
On Fri, 22 Jul 2011, Mauricio Zambrano-Bigiarini wrote:
Dear List,
I'm building a package that uses 2 functions of the 'sp' package, and I
declared them in my NAMESPACE file as follow:
importFrom("sp", proj4string, coordinates)
The package is built without any problem, but when I load the package, I get
the following message:
"
Loading required package: sp
Note: polygon geometry computations in maptools
depend on the package gpclib, which has a
restricted licence. It is disabled by default;
to enable gpclib, type gpclibPermit()
Checking rgeos availability as gpclib substitute:
TRUE
"
However, if I only load the 'sp' package (in a different R session), I don't
get any warning message.
Is there any way I can prevent the warning message appears when I load my
package ?
Thanks in advance for any help,
Mauricio Zambrano-Bigiairni
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