If I use fits in my macro and change properties then I do it like that (and later use it to fit a TGraph object, of course) and it works perfectly:
TF1 *fit1 = new TF1("mypol","pol7"); mypol->SetLineWidth(2);
However, if I use the same lines in compiled code, the compiler complains
TEventViewTool.C: In member function
void TEventViewTool::scanEff(double, double, double, double, double)': TEventViewTool.C:1735: error:mypol’ undeclared (first use this function)
TEventViewTool.C:1735: error: (Each undeclared identifier is reported only once for each function it appears in.)
gmake: *** [TEventViewTool.o] Error 1
How can I solve this problem?