Hi Val,
[off list... I don't want to compromise your chances to start a
constructive discussion ;-)]
Thanks for reporting this. Just wanted to mention that the reason I
think the situation is worst when you use the paste() generic defined
in BiocGenerics than when you make paste() a generic
It's hard to see how repeated dispatch on the same classes can be that
slow, _if_ the function being called each time is itself doing some
substantial work.
The first call (in a session) with a particular signature searches for
inherited methods and stores the method found in a table. The
Thanks for the background and suggestions.
Valerie
On 07/02/2013 08:41 AM, John Chambers wrote:
It's hard to see how repeated dispatch on the same classes can be that
slow, _if_ the function being called each time is itself doing some
substantial work.
The first call (in a session) with a
Hi,
S4 method dispatch can be very slow. Would it be reasonable to cache the
most
recent dispatch, anticipating the next invocation will be on the same
type? This
would be very helpful in loops.
fun0 - function(x)
sapply(x, paste, collapse=+)
fun1 - function(x) {
paste -
