while I appreciate you are probably doing it out of humour/levity, I have taken the liberty of removing the 'threat' that was previously in your post, and ask you to refrain from such on this forum.
Here is not a chunk but rather a complete rmarkdown that you can try to see.
If you want specific help, then it is recommended that you provide a reprex
FAQ: How to do a minimal reproducible example ( reprex ) for beginners
---
title: "R Notebook"
output:
html_document:
df_print: paged
---
```{r}
library(ROCR)
data(ROCR.hiv)
pp <- ROCR.hiv$hiv.svm$predictions[[1]]
ll <- ROCR.hiv$hiv.svm$labels[[1]]
pred<- prediction(pp, ll)
perf <- performance(pred, "tpr", "fpr")
plot(perf, avg= "threshold", colorize=TRUE, lwd= 3,
main= "With ROCR you can produce standard plots like ROC curves ...")
```