初学时间序列分析,很多问题不懂
把出行时间间隔做线性分析,结果如下,说明什么问题啊?
谢谢!
> model1=lm(tsBus3001~time(tsBus3001))
> summary(model1)
Call:
lm(formula = tsBus3001 ~ time(tsBus3001))
Residuals:
Min 1Q Median 3Q Max
-198.72 -172.29 -132.65 -37.46 2171.27
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 192.37178 48.58167 3.960 0.000106 ***
time(tsBus3001) 0.08723 0.43207 0.202 0.840226
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 337 on 192 degrees of freedom
Multiple R-squared: 0.0002122, Adjusted R-squared: -0.004995
F-statistic: 0.04075 on 1 and 192 DF, p-value: 0.8402