lab9 - STAT5044 lab 9 Inyoung Kim 1 11 Outline 1 How to fit...

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Unformatted text preview: STAT5044: lab 9 Inyoung Kim 1 / 11 Outline 1 How to fit the segmented regression in R 2 / 11 Example The data is an old economic dataset on 50 different countries. These data are averages from 1960 to 1970 (to remove business cycle or short-term fluctuations). dpi is the per capita income in U.S. dollars; ddpi is the percentage rate of change in per capita disposable income; sr is aggregate personal savings divided by disposable income. The percentage of population under 15(pop15) and over75(pop75) is also recored. The data come from Belsley, Kuh, and Welsch (1980). The goal is to study the relationship between sr and ddpi. 3 / 11 Call data > data(savings) > savings sr pop15 pop75 dpi ddpi Australia 11.43 29.35 2.87 2329.68 2.87 Austria 12.07 23.32 4.41 1507.99 3.93 Belgium 13.17 23.80 4.43 2108.47 3.82 . . . Jamaica 7.72 41.12 1.73 380.47 10.23 Uruguay 9.24 28.13 2.72 766.54 1.88 Libya 8.89 43.69 2.07 123.58 16.71 Malaysia 4.71 47.20 0.66 242.69 5.08 4 / 11 Fit simple linear regression...
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This note was uploaded on 01/02/2012 for the course STAT 5044` taught by Professor Staff during the Fall '11 term at Virginia Tech.

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lab9 - STAT5044 lab 9 Inyoung Kim 1 11 Outline 1 How to fit...

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