How to export struct saved in workspace to text file

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ProgramNerd
ProgramNerd 2022-8-1
评论： ProgramNerd 2022-8-1
Hi, I have a struct with some fields inside. I want to be able to export the struct (or at least 2 of the fields inside) to a text file. Any help would be appreciated. Thanks
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Walter Roberson
Walter Roberson 2022-8-1

see https://www.mathworks.com/help/matlab/ref/jsonencode.html#mw_69b38ba2-26d1-4025-a426-d1bf8ca939a7

ProgramNerd
ProgramNerd 2022-8-1
Great thank you, definetely something I need to look into and expand my knowlegde on

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Abderrahim. B
Abderrahim. B 2022-8-1
编辑：Abderrahim. B 2022-8-1
Ran in:
Convert to table and then wrtie to text file:
% Example 1: convert and write to table
S.Str = 'I Love MATLAB'
S = struct with fields:
Str: 'I Love MATLAB'
S.Date = datetime("now")
S = struct with fields:
Str: 'I Love MATLAB' Date: 01-Aug-2022 14:21:48
Stb = struct2table(S)
Stb = 1×2 table
Str Date _____________ ____________________ I Love MATLAB 01-Aug-2022 14:21:48
writetable(Stb, "Stb.txt")
Edit:
% Example 2: using jsonencode and fprintf
clear
S.A1 = [9.9, 9900];
S.A2 = [8.8, 7.7 ; ...
8800, 7700];
S = jsonencode(S, "PrettyPrint", true)
S =
'{ "A1": [ 9.9, 9900 ], "A2": [ [ 8.8, 7.7 ], [ 8800, 7700 ] ] }'
  • Export to text file
I do not know about your struct, so I'm skipping formatSpec.
NB: fprintf has an option called formatSpec that you may need to set as first argument to fprintf.
fileID = fopen('myS.txt','w');
nbytes = fprintf(fileID,S) ;
fclose(fileID);
Hope this helps
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ProgramNerd
ProgramNerd 2022-8-1
Great thank you, so much nicer now. Really appreicated all the help

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