TH1::Fit() errors estimation
Tadeusz Pytlos (pytlos@fizwe5.fic.uni.lodz.pl)
Tue, 30 Jun 1998 11:31:05 +0200 (CEST)
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