evamaerey / demor

highlight and color code for presentations and teaching demos

demoR

To get started, please refer to this vignette.

Overview

demoR is a set of tools for formatting R code for presentations, teaching demonstrations, and much more:

• The demo_*() functions prepare your source code to be both evaluated and displayed by knitr::knit().

• The hlt_*() functions add text display formatting to printed code.

These combine naturally within code chunks in R Markdown files via code chunk options. You can learn more about them in vignette("demoR").

Installation

Development version

Currently, only the development version of demoR is available. You can install this by running

# install.packages("devtools")
devtools::install_github("kbodwin/demoR")

Usage

library(demoR)
data(iris)
codestring <- "mean(iris$Sepal.Length, na.rm = TRUE)"

hlt_funs(codestring)
#> [1] "<pre class='prettyprint'><code><span style='background-color:#ffff7f'>mean</span>(iris$Sepal.Length, na.rm = TRUE)</code></pre>"

hlt_args(codestring)
#> [1] "<pre class='prettyprint'><code>mean(iris$Sepal.Length, <span style='background-color:#ffff7f'>na.rm</span> = TRUE)</code></pre>"

demo_code(codestring) %>% hlt_args()

mean(iris$Sepal.Length, na.rm = TRUE)

#> [1] 5.843333

Getting help

If you encounter a clear bug, please file a minimal reproducible example on github.

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