json reading and writing in MATLAB

Example from mathworks

jsonText = fileread('Portfolio.json');

% Convert JSON formatted text to MATLAB data types (3x1 cell array in this example)

jsonData = jsondecode(jsonText);

% Change HighPrice value in Row 3 from 10000 to 12000

jsonData{3}.HighPrice = 12000;

% Convert to JSON text

jsonText2 = jsonencode(jsonData); % PrettyPrint=true is option

% Write to a json file

fid = fopen('Portfolio2.json', 'w');

fprintf(fid, '%s', jsonText2);

fclose(fid);

Works in CSPM:

txt = jsonencode( A.study{i,j} );

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