擬合模型後進行預測
R 中的監督式學習：回歸
Nina Zumel and John Mount
Win-Vector LLC
檢視預測結果
ggplot(cricket, aes(x = prediction, y = temperature)) +
geom_point() +
geom_abline(color = "darkblue") +
ggtitle("temperature vs. linear model prediction")
對新資料進行預測
newchirps <- data.frame(chirps_per_sec = 16.5)
newchirps$prediction <- predict(cmodel, newdata = newchirps)
newchirps
chirps_per_sec pred
1 16.5 79.53537
