16_appendix.Rmd

# Appendix {-}

```{r message=FALSE, warning=FALSE, echo = FALSE}
library(tidyverse)
library(knitr)
# all used packages:
system("grep '^library(' *Rmd > library_calls.txt")
used_packages_orig = read_table("library_calls.txt", col_names = "packages")

used_packages = used_packages_orig %>% 
  separate(packages, into = c(NA, "packages"), sep = ":") %>% 
  separate(packages, into = c("packages", "comment"), sep = "#") %>% 
  mutate(packages = str_trim(packages)) %>% 
  distinct(packages) %>% 
  bind_rows(tibble(packages = c("tibble", "tidyr", "purrr", "stringr", "bookdown", "rmarkdown"))) %>% 
  mutate(packages = str_remove(packages, "library\\(") %>% str_remove("\\)") %>% 
           fct_relevel("tidyverse",
                       "ggplot2", 
                       "tibble", 
                       "tidyr",
                       "readr",
                       "purrr",
                       "dplyr", 
                       "stringr",
                       "forcats",
                       "finalfit")) %>% 
  arrange(packages) %>% 
  pull(packages)


```


This book was written in **bookdown**, which is an R package built on top of R Markdown (@xie2016).

The main packages used in this book were: **`r combine_words(used_packages)`**.

R and package versions, `sessionInfo()`:

```{r, echo = FALSE}
xfun::session_info(used_packages, dependencies = FALSE)
```