teachr

An R package to aid teaching of introduction to R

You can install the development version of teachr from GitHub with:

# install.packages("devtools")
devtools::install_github("numbats/teachr")

Example

```{teachr substitute}
z <- mean(<<1:5>>)
z

---
  
Hint: Add a vector inside mean()

???

expect_identical(z, 3)
```