How can I add a new method to the generic function [ or +
I want to create a S3 and S4 class that will use the [ and + method in a
different way.
How can I overload the generic primitive [ or + so the method dispatch will
work correctly for my class?
I saw an example of this in the ggplot2
On Thu, Oct 28, 2010 at 9:31 AM, Mark Heckmann mark.heckm...@gmx.de wrote:
How can I add a new method to the generic function [ or +
I want to create a S3 and S4 class that will use the [ and + method in a
different way.
How can I overload the generic primitive [ or + so the method dispatch
Dear Barry, this is really interesting. However I could not understand
this line:
Ops.ss=function(e1,e2){paste(e1,e2)}
Where you have told R to behave + function differently when it faces
ss class?
What should be the ideal approach if I what to use * function?
Thanks,
On Thu, Oct 28, 2010 at
On 10/28/2010 02:17 AM, Barry Rowlingson wrote:
On Thu, Oct 28, 2010 at 9:31 AM, Mark Heckmann mark.heckm...@gmx.de wrote:
How can I add a new method to the generic function [ or +
I want to create a S3 and S4 class that will use the [ and + method in a
different way.
How can I overload
On Thu, Oct 28, 2010 at 2:12 PM, Martin Morgan mtmor...@fhcrc.org wrote:
Not so hard, eh? Though then like your S3 implementation this makes all
'Ops' (see ?Ops)
Except you have to re-run the set* things every R session:
setClass(SS, character)
setMethod(Ops, c(SS, SS), function(e1, e2)
On Thu, Oct 28, 2010 at 12:14 PM, Christofer Bogaso
bogaso.christo...@gmail.com wrote:
Dear Barry, this is really interesting. However I could not understand
this line:
Ops.ss=function(e1,e2){paste(e1,e2)}
Where you have told R to behave + function differently when it faces
ss class?
What
Note how S3 methods are dispatched only by reference to the first
argument (on the left of the operator). I think S4 beats this by
having signatures that can dispatch depending on both arguments.
That's somewhat of a simplification for primitive binary operators. R
actually looks up the method
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