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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?

This exercise is part of the course

Intermediate Importing Data in R

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Exercise instructions

  • 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.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# jsonlite is already loaded

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


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