Monkey patching +.POSIXt

Mark Bravington
CSIRO Mathematical & Information Sciences
Marine Laboratory
Castray Esplanade
Hobart 7001
TAS

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Hadley Wickham wrote:
>> In this particular case, the trick is to assign the new version both
>> into the namespace and into the environment '.__S3MethodsTable__.'
>> inside the namespace.  
> 
> The problem is +.POSIXt doesn't seem to be there:
> 
>> exists("+.POSIXt", asNamespace("base")$.__S3MethodsTable__.,
>> inherits=F)
> [1] FALSE
> 
> 
>> Speaking as a monkey, I do this kind of thing regularly, and there
>> is a function 'assign.to.base' in the 'mvbutils' package that does
>> it automatically, e.g.  
>> 
>> assign.to.base( '+.POSIXt', my.plus.POSIXt)
> 
> I tried that too, but without any luck.
> 
> Hadley