My preferred knitr chunk settings for R Markdown documents

setup

```{r setup, echo = FALSE, message = FALSE, warning = FALSE}

knitr::opts_chunk$set(dev = "pdf",            # Save figures as PDFs
                      fig.keep = "all",
                      fig.path = "figures/",  # Figures are saved to this directory
                      message = FALSE,        # Hide messages/warnings/errors from loading packages
                      warning = FALSE,
                      error = FALSE,
                      cache = TRUE)           # By default, cache results to avoid re-running
                                              # super long things every time you knit
                      
```