Created
April 28, 2015 01:43
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| vote <- read.csv("~/Downloads/oota2015.csv") | |
| plot(vote) #散布図 | |
| vote.newdata = seq(1800, 7200, 100) | |
| vote.lm <- lm(X2011 ~ X2015, data = vote) | |
| #95%予測。片側なので0.9 | |
| vote.pred <- as.data.frame(predict(vote.lm, data.frame(X2015 = vote.newdata), interval = "prediction", level = 0.9)) | |
| lines(cbind(vote.newdata, vote.pred$fit), type="l") | |
| lines(cbind(vote.newdata, vote.pred$lwr), type="l", col="blue", lty=2) | |
| #80%予測。片側なので0.6 | |
| vote.pred80 <- as.data.frame(predict(vote.lm, data.frame(X2015 = vote.newdata), interval = "prediction", level = 0.6)) | |
| lines(cbind(vote.newdata, vote.pred80$lwr), type="l", col="green", lty=2) | |
| lines(c(2605, 2605), c(0, 10000), type="l", col="red") | |
| lines(c(0, 10000), c(2941, 2941), type="l", col="red") |
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