I find I can't fix |sigma| in function 'gaus'
root [3] fgau->FixParameter(2,1)
root [4] fgau->Print()
gaus : gaus Ndim= 1, Npar= 3, Noper= 1fExpr[0] = gaus action = 110 action param = 0 Optimized expression
fExpr[0] = gaus action = 110 action param = 0 Par 0 Constant = 1 Par 1 Mean = 0 Par 2 Sigma = 1 root [5] hSignif->Draw()
EDM=4.24208e-13 STRATEGY= 1 ERROR MATRIX UNCERTAINTY 2.2 per cent EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 Constant 5.51347e+00 6.30205e-01 8.36689e-05 -2.02569e-06 2 Mean -1.13119e-01 1.17954e-01 -8.33876e-06 6.14754e-06 3 Sigma 1.23109e+00 1.39661e-01 -2.78385e-06 -1.57846e-05(class TFitResultPtr)174529088
--FixParameter works for |Constant| and |mean|
--That does not seem right! A bug? Hard to believe it would not have
noticed previouly though --
????
-AE
A.E. Snyder, The Former Group C (TFC) \!c*p?/ SLAC Mail Stop #95 ((. .)) Box 4349 | Stanford, Ca, USA, 94309 '\|/` e-mail:snyder_at_slac.stanford.edu o phone:650-926-2701 _ http://www.slac.stanford.edu/~snyder BaBar FAX:707-313-0250 Collaboration & Fermi/GLASTReceived on Wed Jun 27 2012 - 00:41:55 CEST
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