JSON singkatan dari Notasi Objek JavaScript. File JSON berisi data sebagai teks dalam format yang dapat dibaca manusia. Seperti file lainnya. Bahasa R menyediakan paket bernama rjson, yang harus diinstal dengan bantuan perintah install.packages yang sudah dikenal.
1. Install packages
Format : install.packages("rjson")
Contoh :
2. Membuat file JSON :employee.json
{
"id":["1","2","3","4","5","6","7","8" ],
"name":["Shubham","Nishka","Gunjan","Sumit","Arpita","Vaishali","Anisha","Ginni" ],
"salary":["623","552","669","825","762","882","783","964"],
"start_date":[ "1/1/2012","9/15/2013","11/23/2013","5/11/2014","3/27/2015","5/21/2013",
"7/30/2013","6/17/2014"],
"dept":[ "IT","Operations","Finance","HR","Finance","IT","Operations","Finance"]
}
3. Read file JSON
# Loading the package which is required to read JSON files.
library("rjson")
# Giving the input file name to the function fromJSON.
result <- fromJSON(file = "employee.json")
# Printing the result.
print(result)
3. Write file JSON
# Loading the package which is required to read JSON files.
library("rjson")
# Giving the input file name to the function fromJSON.
result <- fromJSON(file = "employee.json")
# Converting the JSON record to a data frame.
data_frame <- as.data.frame(result)
#Printing JSON data frame
print(data_frame):
