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Fitting (special modeling)2009.11.18BR2003, Chap. 6
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SchematicThe role of data analysis
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On the learning of curve fitting/
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3.
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Anyway, data are necessary.Data! Data! He cried impatiently,I
cant make bricks without clay.--- , Conan DoyleThen,The science and
art of data handling and decision making: Data Analysis
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vs.[] BTW, even a possibility()
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E.g., then, what is the origin of the quantum uncertainty?
Unknown to us still.:Anyway, what we concern in this course:
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Curve fittingStep 1: /Step 2: e.g., Step 3: Our goal:Grasp and
practice general data analysis in one semester (60hrs).
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Overview of Chap.6Focused on Subsection 6.2 specifically,
careful only for ``Method of Maximum Likelihood.To glance over
Subsection 6.3To read ``Chisq Probability (p.108) and
``Uncertanties in the Parameters (p.109) [Note: actually, nobody
bothers to estimate the Uncertanties in the Parameters using the
formal error propagation equation.]To skip other sections if you
have no time/interest.
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Only one thing in this Chapter you should understandMaximizing
the likelyhood minimizing zz(a,bzchi^2)
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For the next classRead in advance chapter 7.Pay much time to
finish the case, see:
ftp://210.45.66.48/teaching/methods09/Course_Notes_and_Homeworks/fitting/
or http://ustcastroph.blog.sohu.com/#tp_95a1b1f5a7a Advice:
practice is more important than reading.
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0.450.82092MgII 2800AFWHMEW3000A[ L3000= 3000A * L_lambda(3000)
]MEddington ratioL/Ledddata_for_spearman.txtEW(MgII)L3000, FWHM, M,
L/LeddSpearmanCase discussion Today
