伍sir啊,统计是俺家不记事吃饭的家伙,他可不能忘。。。 bvG").8$
#4na>G|
三次方的模型其实 fit 的非常好,p 值很小很小,estimates 的值如下: dN |w;|M
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Call: YXIDqTA+
lm(formula = V3 ~ V1 + I(V1^2) + I(V1^3), data = a) tx5_e[
f[.hN
Residuals: mkE*.I0=
Min 1Q Median 3Q Max ?]9uHrdsN}
-14085.3 -7779.8 -689.7 7941.2 16891.5 x0lX6
|D
5\=9&{WjND
Coefficients: h
*%T2
Estimate Std. Error t value Pr(>|t|) h%=b"x
(Intercept) -8.367e+05 9.471e+04 -8.835 3.07e-13 *** &p;};n
V1 8.584e+03 6.063e+02 14.159 < 2e-16 *** N%r}0
I(V1^2) -1.945e+01 1.256e+00 -15.491 < 2e-16 *** Z(as@gjH
I(V1^3) 1.267e-02 8.436e-04 15.018 < 2e-16 *** :jp?FF^j;
--- D4'XBXmb
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 aGpRdF1;!
'12|:t&7
Residual standard error: 8724 on 75 degrees of freedom >j`*-(`2fa
Multiple R-squared: 0.9952, Adjusted R-squared: 0.995 Vg
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F-statistic: 5175 on 3 and 75 DF, p-value: < 2.2e-16