伍sir啊,统计是俺家不记事吃饭的家伙,他可不能忘。。。 BS!VAHO"V
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三次方的模型其实 fit 的非常好,p 值很小很小,estimates 的值如下: EZypqe):/C
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Call: *>
LA30R*v
lm(formula = V3 ~ V1 + I(V1^2) + I(V1^3), data = a) 54r/s#|-3
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Residuals: $b Oi
P
Min 1Q Median 3Q Max Qq+$ea?>
-14085.3 -7779.8 -689.7 7941.2 16891.5 j`7q7}
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Coefficients: OO#_0qK
Estimate Std. Error t value Pr(>|t|) u7L&cx
(Intercept) -8.367e+05 9.471e+04 -8.835 3.07e-13 *** '*lVVeSiFw
V1 8.584e+03 6.063e+02 14.159 < 2e-16 *** SJ8Ax_9{q
I(V1^2) -1.945e+01 1.256e+00 -15.491 < 2e-16 *** ^ZuwUuuf
I(V1^3) 1.267e-02 8.436e-04 15.018 < 2e-16 *** gaV>WF
--- "n'kv!?\
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 0
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Residual standard error: 8724 on 75 degrees of freedom X;'H@GU0
Multiple R-squared: 0.9952, Adjusted R-squared: 0.995 a]\l:r
F-statistic: 5175 on 3 and 75 DF, p-value: < 2.2e-16