quantstrat

Can anyone advise me how to resolve this?

try this:

stock.str <- getSymbols(stock.str,from=initDate+1)

which should drop the hat for you.

the hat isn't a valid R variable name.

Also note, per the blotter documentation, that your first trade should 
occur *after* the initDate.

Cheers,

   - Brian

Brian G. Peterson
http://braverock.com/brian/
Ph: 773-459-4973
IM: bgpbraverock