I have two questions about the TSpectrum usage that I have not been able to
find in documentation, using google or by experimenting …
(1) What is the syntax for multiple TSpectrum options? I see that some options can
be set via SetXXX functions (like s->SetAverageWindow(1); etc …) but
how about nosmoothing, noMarkov, nobackground etc …?
I would like to have instead of
Int_t nfound = s->Search(h1,1,“new”,0.75);
Int_t nfound = s->Search(h311,1,“new,nocompton,nosmoothing,noMarkov”,0.75);
but that syntax does not work. What is the right syntax?
(2) The reason why I want to change the default options is that the standard,
default s->Search() does not give me the real/raw maxima of the peaks
(that is what I would like to have in the first pass) but some “improved” maxima:
my peaks are asymmetric functions with background and it seems that
TSpectrum tries to account for background and/or asymmetry and does not
in the default case return raw peak values … So my peak positions are always
a few channels to the right of the max values.
I would assume that there must be option to get these raw values?
“googling” I found that I could use TMath::LocMax(), but that would give my just one
biggest peak, right? I like the flexibility of TSpectrum, only I could get “unimprioved”
Thanks in advance, Emil