How to get TF1 as string?

ROOT
1

Is there a way to get the current situation of TF1 after the fit as a string
to use elsewhere? I mean not just a general structure which is returned by
GetExpFormula() but that the same string with all the parameters
substituted by those actual values?

2

That depends what you want to store in the string.
You can always create a string, eg with

TString s = Form("%s=%g, %s=%g..",func->GetParName(0),func->GetParameter(0),func->GetParName(1),func->GetParameter(1),...));
Rene

3

No i mean something like:
“3.25*(x>4.01)+4.44exp(-0.04x)“
for a function of type:
”[0]*(x>[1])+[2]*exp(-[3]*x)”, which is returned by GetExpFormula()

4

Your request makes sense. Thanks for this suggestion.
Now implemented in CVS. See
root.cern.ch/root/htmldoc/TFormu … ExpFormula

Rene