Coursera - Developing data products Quiz 2

Question 1

What is rmarkdown? (Check all that apply.)

Answer:

• A simplified format that, when interpreted, incorporates your R analysis into your document.

• A format that can be interpreted into markdown (which is a simplified markup language).

Question 2

In rmarkdown presentations, in the options for code chunks, what command prevents the code from being repeated before results in the final interpreted document?

Answer:

• echo = FALSE

Question 3

In rmarkdown presentations, in the options for code chunks, what prevents the code from being interpreted?

Answer:

• eval = FALSE

Question 4

What is leaflet? (Check all that apply.)

Answer:

• An R package interface to the javascript library of the same name
• A javascript library for creating interactive maps

Question 5

The R command:

library(leaflet)
df %>% leaflet() %>% addTiles()

is equivalent to what? (Check all that apply)

• addTiles(leaflet(df))
• leaflet(df) %>% addTiles()

Question 6

If I want to add popup icons to my leaflet map in R, I should use.

• addMarkers