Use numeric variable in RooWorkspace factory statemen?

Roofit and RooStats
1

Suppose I have such code:

double lowbound=0, upbound=1;
RooRealVar x("x","x",lowbound,upbound);
RooRealVar y("y","y",lowbound,upbound);

In RooWorkspace factory can I use symbols/variables in the same way as lowbound/upbound above? I prefer not to write

w.factory("x[0,1]");
w.factory("y[0,1]");

since this may lead to refactoring problem.

2

Hi,

The factory primarily supports symbolic manipulation of RooFit objects, with some support added
to cast literals of various types (doube,int,bool,enum) to such objects. Adding symbols representing
doubles would be a significant extension of the language and is not foreseen.

Wouter