ÎncepețiÎncepe gratuit

JSON practice (2)

We prepared two more JSON strings in the sample code. Can you change them and call jsonlite's fromJSON() function on them, similar to the previous exercise?

Acest exercițiu face parte din cursul

Intermediate Importing Data in R

Vezi cursul

Instrucțiuni pentru exercițiu

  • Remove characters from json1 to build a 2 by 2 matrix containing only 1, 2, 3 and 4. Call fromJSON() on json1.
  • Add characters to json2 such that the data frame in which the json is converted contains an additional observation in the last row. For this observations, a equals 5 and b equals 6. Call fromJSON() one last time, on json2.

Exercițiu interactiv practic

Încearcă acest exercițiu completând acest cod de exemplu.

# jsonlite is already loaded

# Challenge 1
json1 <- '[[1, 2], [3, 4], [5, 6]]'


# Challenge 2
json2 <- '[{"a": 1, "b": 2}, {"a": 3, "b": 4}]'
Editează și rulează codul