Create a matrix of HEX number from a file of HEX number separated by a space

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benjamin ktorza
benjamin ktorza on 17 Aug 2023
Commented: benjamin ktorza on 18 Aug 2023
Hi,
I have a file containing a lot of lines. each line contains a set number of HEX values separated by spaces (in the file 24 HEX number and 12 lines)
I would like to make is a variable that is a matrix (24x12 in the test file). the number can either stay as a string, be converted as hex or be dec equivalent, it doesn't matter too much.
thank you in advance

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Accepted Answer

Walter Roberson
Walter Roberson on 17 Aug 2023
Edited: Walter Roberson on 17 Aug 2023
Ran in:
S = readlines('test.txt');
S(strlength(S) == 0) = []; %end of file usually comes through as empty line
SS = regexp(S, '\s+', 'split');
wanted = vertcat(SS{:})
wanted = 12×24 string array
"12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "00" "02" "23" "40" "65" "84" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "FF" "FF" "FF" "FF" "FF" "51" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF"
Note: the code, as written, will fail if there are lines with fewer (or more) values.

More Answers (1)

Stephen23
Stephen23 on 18 Aug 2023
Ran in:
S = readmatrix('test.txt', 'OutputType','string')
S = 12×24 string array
"12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "FF" "00" "02" "23" "40" "65" "84" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "FF" "FF" "FF" "FF" "FF" "51" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF" "12" "AB" "5A" "00" "00" "02" "23" "40" "65" "84" "68" "94" "12" "63" "67" "05" "49" "99" "AA" "FF" "FF" "FF" "FF" "FF"

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