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第 8 章 回归分析 - PowerPoint PPT Presentation


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第 8 章 回归分析. 8.1 线性回归分析的基本原理 8.2 图表分析与回归函数分析 8.3 Excel 回归分析工具 8.4 多元回归分析 8.5 非线性回归分析. 本章学习目标. u 回归分析的基本思想 u 利用 Excel 图表进行线性回归分析 u 利用 Excel 回归分析工作表函数进行线性回归分析 u 利用 Excel 回归分析工具进行一元及多元线性回归分析 u 非线性回归分析的基本思路. 8.1 线性回归分析的基本原理. 8.1.1 回归分析的概念 8.1.2 回归分析的主要内容. 返回首页.

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第 8 章 回归分析

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8 5738981
8

  • 8.1

  • 8.2

  • 8.3 Excel

  • 8.4

  • 8.5


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u

uExcel

uExcel

uExcel

u


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8.1

  • 8.1.1

  • 8.1.2



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8 1 2
8.1.2

  • Excel


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8.2

  • 8.2.1

  • 8.2.2 Excel

  • 8.2.3


8 2 1
8.2.1

  • 8-1 8-112yx

  • 1

  • 28-2XY2


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  • 3232B2:C138-33

  • 438-4

  • 5XY8-5

  • 6

  • 7R8-6


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8-1 .32xls





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8-5 32XY


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8-6 32


8 2 2 excel
8.2.2 32Excel

  • Excel

  • 1

  • 2

  • 3

  • 4


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132

  • xyyknown_x'sknown_y'sy0INTERCEPTINTERCEPT0C

  • INTERCEPT(known_y's,known_x's)


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8-7 32xy


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8-8 32


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2 32

  • known_y'sknown_x's

  • SLOPE (known_y's,known_x's)

  • Known_y'sKnown_x's


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332

  • 3

    known_y'sknown_x'sRyx

  • RSQ(known_y's,known_x's)


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  • 32


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8-9 32


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4 32

  • xyxy

  • STEYX(known_y's,known_x's)

    Known_y'sKnown_x's


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  • 32y


8 2 3
8.2.3 32

  • 8-4 1010xy8-10

  • Excel

  • 1A12~A15

  • 2B12=INTERCEPT(C2:C11,B2:B11)-79.42015

  • 3B13=SLOPE(C2:C11,B2:B11)0.8041825

  • 4B14=RSQ(C2:C11,B2:B11)0.6817018

  • 5B15=STEYX(C2:C11,B2:B11)2.81807388-8




8 3 excel
8.3 32Excel

  • 8.3.1

  • 8.3.2

  • 8.3.3


8 3 1
8.3.1 32

  • Excel


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  • 8-12


8 3 2
8.3.2 8-12

8-5 8-4

1

2

3Y$C$1: $C$11X$B$1: $B$11$D$18-138-14


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8-13 8-12


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8-14 8-12


8 3 3
8.3.3 8-12

  • Excel3

  • 1

  • 2

  • 3


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  • 8-12

  • 1Multiple RR

  • 2R SquareR2

  • 3Adjusted R SquareR2

  • 4

  • 5


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8.4 8-12

  • 8-6 yx1x2108-15yx1x2(=0.05)


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  • 11

  • 2YD1:D11XB1:C11A128-16





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  • 11

  • 1

  • 2


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18-1




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8-2




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