In jr-packages/jrAutomate: R Automate Exercises

Markdown chunk option

For each knitr code chunk option below

1. Experiment with the different options.
2. Re-render the file to see what the option does. If you cannot tell, re-render the file both with and without the code chunk.
3. Describe in your own words what the option does.
4. Use the RStudio's auto complete function; this is accessed via the TAB key.

---

eval

• What happens when eval=TRUE?
• What is the default?

colMeans(cars)
1 + 1

Description:

---

results

• Other options for results is markup and asis
• What is the default?

carmeans = colMeans(cars)
1 + 1

Description:

---

echo

• Try echo=TRUE. What's the default value for echo?

plot(cars)

Description:

---

fig.width and fig.height

When adding multiple arguments to a code chunk, separate the arguments by a comma.

plot(cars)

Description:

---

message

f = function(x) {
  message("Thanks")
  return(x)
}
f(10)

Description:

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jr-packages/jrAutomate documentation built on Dec. 14, 2019, 6:35 p.m.