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Results tagged with predictive-models
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user 336717
Predictive models are statistical models whose primary purpose is to predict other observations of a system optimally, as opposed to models whose purpose is to test a particular hypothesis or explain a phenomenon mechanistically. As such, predictive models place less emphasis on interpretability and more emphasis on performance.
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Why does my ROC curve have a sharp edge?
I was working on a random forest model in R and I got a ROC curve that looks like this. This is very odd since there is no curvature. The data does have mostly qualitative features with only 2-3 quant …
- 11
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Accepted
Why does my ROC curve have a sharp edge?
I was able to plot the ROC curve by a different method. I have the code below. I am still not sure why the code I had previously would not work.
library(pROC)
rf.roc<-roc(y_test$Success, forest.out$te …
- 11