14.7 Predict Probability
20200607 To extract the probability of it raining tomorrow
from the prediction made by the model. For a rpart model we can obtain
the probability of it raining tomorrow using
stats::predict() with type="prob".
ds[tr, vars] %>% predict(model, newdata=., type="prob") %>% '['(,2) -> pr_tr
ds[tu, vars] %>% predict(model, newdata=., type="prob") %>% '['(,2) -> pr_tu
ds[te, vars] %>% predict(model, newdata=., type="prob") %>% '['(,2) -> pr_te## 1 2 3 4 5 6
## 0.6179382 0.1409263 0.1409263 0.1409263 0.1409263 0.1409263If you find this curated material useful then you can consider a donation to support it's ongoing availability and give you access to the PDF version of this book. The material has been scoped up by Generative AI without permission or any kind of recompense so do consider a donation if you can afford it. Unlike Generative AI your access to this materials is freely given. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Togaware has a 30 year tradition of making popular open source software which includes sold privacy preserving productivity apps, rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0
