>> s = json('{"country":"Spain","capital":"Madrid","population":"3,141,991"}')

[s:1x1 struct]

>> s#

 country: Spain
 capital: Madrid
 population: 3,141,991

>> dataString = urlread('https://www.quandl.com/api/v3/datasets/EOD/V.json?api_key=7HA_MuZ7-zb1ob37RRYX&start_date=2017-03-10') 
% fetching data from quandl API 
dataStruct = json(dataString) 
% parses JSON string 
 
dataStruct#

 dataset: [21x1 struct]

>> dataStruct.dataset{1}#

 id: 1.40324e+07
 dataset_code: V
 database_code: EOD
 name: Visa Inc. (V) Stock Prices, Dividends and Splits
 description: [1x874 char]
 refreshed_at: 2017-03-23T00:50:03.170Z
 newest_available_date: 2017-03-22
 oldest_available_date: 2008-03-19
 column_names: [1x13 cell]
 frequency: daily
 type: Time Series
 premium: 1
 limit: [0x0 double]
 transform: [0x0 double]
 column_index: [0x0 double]
 start_date: 2017-03-10
 end_date: 2017-03-22
 data: [1x9 cell]
 collapse: [0x0 double]
 order: [0x0 double]
 database_id: 12910