fit lwr upr
1 218.4332 90.51019 346.3561
2 218.3906 90.46133 346.3198
3 218.3906 90.46133 346.3198
4 161.3982 44.85702 277.9394
5 192.4450 68.39903 316.4909
6 179.8056 56.49540 303.1158
7 219.5406 91.52707 347.5542
8 162.6761 46.65760 278.6945
9 193.8506 70.59838 317.1029
10 181.3816 58.11305 304.6502
11 221.2871 92.14366 350.4305
12 164.2947 47.91081 280.6785
13 195.3415 72.04109 318.6418
14 182.7447 58.68660 306.8028
15 222.5223 91.86550 353.1791
I have tried
new<-data.frame(newdata$Unemployment)
prd<-predict.lm(fit,newdata,interval=c("confidence"),level=0.95)
lines (new,prd[,3],col="red",lty=2)
but it didn't give me anything.
thanks
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