????? Chapter 5: ???? (Regression analysis) - PowerPoint PPT Presentation

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????? Chapter 5: ???? (Regression analysis)

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Chapter 5: (Regression analysis) Soon H. Kwon Intelligent Systems and Control Lab. Dept. of EE, Yeungnam Univ. CONTACT – PowerPoint PPT presentation

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Title: ????? Chapter 5: ???? (Regression analysis)


1
?????Chapter 5 ????(Regression analysis)
  • Soon H. Kwon
  • Intelligent Systems and Control Lab.
  • Dept. of EE, Yeungnam Univ.
  • CONTACT
  • E-mail shkwon_at_yu.ac.kr URL http//yu.ac.kr/shk
    won
  • Room EE Hall 214, Tel 3514

2
CONTENTS
  • Chapter 5 ????(Regression analysis)
  • ??
  • ??????? ??? ??
  • ???? ??
  • ?????
  • ??? ???? ????
  • ??????? ??
  • ?? ??? ?? ??
  • ????????? ???
  • ??? ??? ?? ??
  • ?????

3
5. ???? ??????
  • 5.1 ????
  • ????(Regression analysis)
  • ??? ?? ?? ???? ???? ?? ???? ?????
  • ?? ???? ??? ???? ????
  • ??
  • - ???? ?? ?? ??? ????
  • - ??? ??? ??? ??? ?????
  • - ??? ?? ??? ??? ?? ???? ??? ??? ? ??? ? ????

4
5. ???? ??????
  • ?? ??? ?? ??
  • ??? ??(Deterministic models)
  • - ??? ??? ??? ???? ?? ???? ??? ??
  • E mc2
  • y gt2/2, y ??, g ?????, t ??
  • ??? ??(Statistical models)
  • - ??? ??? ??? ??? ???? ??? ??

5
5. ???? ??????
  • ????(Regression analysis)
  • 1885???? F. Galton? 1078? ???? ? ??? ??
  • ?? ??? ?? ??? ????? ???? ??(Regression
  • toward mediocrity in hereditary stature)
  • ????(Regression models) ??? ?? ??
  • ????? ??
  • ?? ?? ????(Simple linear regression
    analysis)
  • (?)? ?? ????(Multiple linear regression
    analysis)
  • ??? ????(Multivariate regression analysis)

6
5. ???? ??????
  • ?????
  • ??? ? 1?? ???? ??? ?? ??? ??? ?? ? ??
  • ?? ??? ?? ??
  • (1) ?? ??
  • (2) ???? ???
  • (3) ????
  • (4) ????

???? x ???? y
????(Independent variable) ????(Dependent variable)
????(Input variable) ????(Output variable)
????(Predictor causal variable) ????(Explanatory variable) ????(Response variable)
7
5. ???? ??????
  • ?? 5.1

8
5. ???? ??????
  • ?? ?? ??

9
5. ???? ??????
  • ??
  • ???? xi? ???? ??? Yi? ??? b0 b1xi??
  • ????? s ? ??????? ???? ???
  • ???? ??? ????? ? ? ??? ??? ??? ??
  • ?? e ? ???? ???? ???.

10
5. ???? ??????
11
5. ???? ??????
12
5. ???? ??????
  • 5.2 ????? ??
  • ?????? ????? ??, ? ???? b0, b1? ?? ?? ??
  • ?????(Least square method)? ?? ???? ??

13
5. ???? ??????
  • ?????(Least square method)
  • ?? ??? ?? ?????? ??? D ?? ???
  • ?? b0? b1? ?? ???.

14
5. ???? ??????
15
5. ???? ??????
16
5. ???? ??????
  • ?????(Least square method)

17
5. ???? ??????
  • ?????(Least square method)

18
5. ???? ??????
19
5. ???? ??????
20
5. ???? ??????
  • ?????(Least square method) ?? 5.1

21
5. ???? ??????
  • ?????(Least square method)

22
5. ???? ??????
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