# Format p-values for use in R Markdown documents

This function formats p-values for use in R Markdown documents to accomplish the following three formatting goals for APA style:

- Round to three digits
- Trim leading zero
- Display $p < .001$ in instances where a p-value is rounded down to zero

```
f_pvalue = function(p.value, symbol = "="){
p.value <- round(p.value, digits = 3)
if (p.value == 0) {
return("p < .001")
} else {
return(paste0("p", symbol, round(p.value, digits = 3)))
}
}
```

Also see these other solutions: