I have some crude behaviour in performing a fit under different versions of root (5.10 Mac binary release and a version 4.something on a Linux-Machine), while the same code gives me completely different results of fit propability (some 20-40% on the Linux 4.xx and exactly 0% on Mac 5.10)
So my main question is, if there are any known bugs or other differences between the versions that I’ve overseen.
Sorry that I am not able to be more specific on the version and exact sourcecode, but unfortunately I don’t have access to the Linux box any longer and since that time changed my sourcecode in order to get at least some propability of fit - until now without any success on my Mac - and forgot to keep a backup of the original source.
You’ll find a sample datafile and the actual sourcecode I am using attached.
(Since I’m a newbee to C++ and ROOT do not wonder if some things are far from being elegant)
Thanks in advance and happy Easter,