I am using a TF2-object (ROOT 5.22) and would like to manipulate the axes. A simple example code reads as follows
TF2* func = new TF2(“func”,“x*y”,0,1,0,1);
func->GetXaxis()->SetTitle(“test axis title”);
But this gives me always this error message
Error: C++ exception caught C:\root\macros\test.cpp(4)
Error: illegal pointer to class object GetXaxis() 0x0 143 C:\root\macros\test.cpp(4)
If I delete the line where I try to set the axis title it is running without errors. I have tested it several root versions as well as several operating systems.
Thanks in advance for your reply