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?

Questo esercizio fa parte del corso

Intermediate Importing Data in R

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Istruzioni dell'esercizio

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.

Esercizio pratico interattivo

Prova a risolvere questo esercizio completando il codice di esempio.

# jsonlite is already loaded

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


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

Modifica ed esegui il codice

Questo esercizio fa parte del corso

Intermediate Importing Data in R

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Exercise 1: APIs & JSON Exercise 2: From JSON to R Exercise 3: Import JSON data from API Exercise 4: OMDb API Exercise 5: JSON & jsonlite Exercise 6: JSON practice (1)Exercise 7: JSON practice (2)

Esercizio in corso

Exercise 8: toJSON()Exercise 9: Minify and prettify

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