opts_chunk$set(fig.path = new_path)
}
-## We use the rmd- prefix for the figures generated by the lssons so
+## We use the rmd- prefix for the figures generated by the lessons so
## they can be easily identified and deleted by `make clean-rmd`. The
## working directory when the lessons are generated is the root so the
## figures need to be saved in fig/, but when the site is generated,
opts_chunk$set(tidy = FALSE, results = "markup", comment = NA,
fig.align = "center", fig.path = "fig/rmd-",
- fig.process = fix_fig_path)
+ fig.process = fix_fig_path,
+ fig.width = 8.5, fig.height = 8.5,
+ fig.retina = 2)
# The hooks below add html tags to the code chunks and their output so that they
# are properly formatted when the site is built.
hook_in <- function(x, options) {
+ lg <- tolower(options$engine)
+ style <- paste0(".language-", lg)
+
stringr::str_c("\n\n~~~\n",
- paste0(x, collapse="\n"),
- "\n~~~\n{: .language-r}\n\n")
+ paste0(x, collapse="\n"),
+ "\n~~~\n{: ", style, "}\n\n")
}
hook_out <- function(x, options) {
x <- gsub("\n$", "", x)
stringr::str_c("\n\n~~~\n",
- paste0(x, collapse="\n"),
- "\n~~~\n{: .output}\n\n")
+ paste0(x, collapse="\n"),
+ "\n~~~\n{: .output}\n\n")
}
hook_error <- function(x, options) {
x <- gsub("\n$", "", x)
stringr::str_c("\n\n~~~\n",
- paste0(x, collapse="\n"),
- "\n~~~\n{: .error}\n\n")
+ paste0(x, collapse="\n"),
+ "\n~~~\n{: .error}\n\n")
+}
+
+hook_warning <- function(x, options) {
+ x <- gsub("\n$", "", x)
+ stringr::str_c("\n\n~~~\n",
+ paste0(x, collapse = "\n"),
+ "\n~~~\n{: .warning}\n\n")
}
-knit_hooks$set(source = hook_in, output = hook_out, warning = hook_error,
- error = hook_error, message = hook_out)
+knit_hooks$set(source = hook_in, output = hook_out, warning = hook_warning,
+ error = hook_error, message = hook_out)