group fix; ohlc fix

src/plot.jl

@@ -167,7 +167,7 @@ function _plot!(plt::Plot, d::KW, args...)
     # we simply add the GroupBy object to the front of the args list to allow
     # the recipe to be applied
     if haskey(d, :group)
-        args = tuple(extractGroupArgs(d[:group], args...), args...)
+        args = (extractGroupArgs(d[:group], args...), args...)
     end
 
 

src/recipes.jl

@@ -549,6 +549,7 @@ type OHLC{T<:Real}
   low::T
   close::T
 end
+Base.convert(::Type{OHLC}, tup::Tuple) = OHLC(tup...)
 tuple(ohlc::OHLC) = (ohlc.open, ohlc.high, ohlc.low, ohlc.close)
 
 # get one OHLC path