read matrix from txt. files

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polo Mahmoud
polo Mahmoud on 30 Oct 2019
Commented: polo Mahmoud on 5 Nov 2019
Hi, if I have a txt. file with 2 different matrix in the text. file and i want them to be read into matlab, eg:
this is from the txt. file:
% A =
[ 1 2 3 4
5 6 7 8]
% B =
[9 10 11 12
13 14 15 16]
and i want matlab to know the diffrent between these two element when it reads the file. so i can make them longer or shorter and it should still be able to take both matrix out.
Met V
Met V on 31 Oct 2019

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Accepted Answer

Walter Roberson
Walter Roberson on 31 Oct 2019
S = fileread('YourFile.txt');
parts_text = regexp(S, '\[[\]*\]', 'match');
parts_value = cellfun(@(txt) textscan(txt, '', 'collectoutput', true), parts_text);
parts_value will now (if all went well) be a cell array of numeric arrays, with one entry for each [] delimited block. In this code, it is not required that each block has the same number of rows or columns as the other blocks.
polo Mahmoud
polo Mahmoud on 5 Nov 2019
Thank you very much :D

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