Dear R Users,

A recent update on base packages on my R installation has introduced a 
problem to my code which did not exist before the update. The offending 
function is rbind, which fails where it was working just fine before the 
update. 

I have two zoo objects, foo and bar, indexed by class Date. foo starts 
from "2007-10-09" and bar from "2007-10-10". I attempt to pad bar with a 
zero on Date "2007-10-09".

> foo<-zoo(1,order.by=as.Date("2007-10-09"))
> bar<-zoo(2,order.by=as.Date("2007-10-10"))
> bar <- rbind(zoo(0, order.by = index(foo)[1]), bar)
Error in rep.int("", nrow(r)) : incorrect type for second argument
> 

Weird. I am certain the problem is due to a recent update to this package 
as I have an R installation on two pcs, the same line of code works well 
on one and not on the other.

Any help/pointers appreciated ? Is this perhaps a bug in rbind ? I am on R 
version 2.7.2, Windows XP SP2.

Thanks in advance,
Tolga



Tolga Uzuner
Cross-Markets
Chief Investments Office
JP Morgan
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