TH1::Fit() errors estimation

From: Tadeusz Pytlos (pytlos@fizwe5.fic.uni.lodz.pl)
Date: Tue Jun 30 1998 - 11:31:05 MEST

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Hello Rooters,
I didn't find on ROOT WWW pages, what errors are taken
into fitting of histogram. I understand that defaultly 
x is taken as bin center, sx is a half of bin width (?),
y is a hight of bin, but what with sy. Is sy 
sqrt(hight_of_bin)? There seems to be tree possibilities
in fit options:
""
"W"  Set all errors to 1 (that's seems to be clear) 
"E"  Minos technique
Would you be so nice to tell me what is meaning of default settings
and mysterious Minos technique?
Thank you in advance,
                 Tadeusz
--
Tadeusz Pytlos        
mailto:pytlos@fizwe5.fic.uni.lodz.pl 
Lodz, Poland

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