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Delete the line that are repeated

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vicente Noguer
vicente Noguer on 19 Jul 2021
Answered: Matt J on 19 Jul 2021
Hello, I made a code that compares two strings and what I want to do is to delete from the old strings the lines that are in the new one.
tf = strcmp(seq1,seq2);
disp('Comparing')
disp(seq1);
disp(seq2);
disp(tf);
if tf == 1
disp('Ha entrado al if')
M_conjunt = [M_conjunt,seq1];
end
I want to delete the ones that are in M_conjunt from both seq1 and seq2. I do not know how to do it. Thank youu!!!!
  3 Comments
vicente Noguer
vicente Noguer on 19 Jul 2021
Are Strings. I use strcmp and I've used as you recomended ismember but the result is the same and I got the problem with the 0. because I want to do a matrix that contais only the messages that are just in AIS1 and not in common in AIS2 and I can't with those functions.

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Answers (1)

Matt J
Matt J on 19 Jul 2021
what I want to do is to delete from the old strings the lines that are in the new one.
For example,
oldstring=["dog"; "fish"; "cat";"zebra"]
oldstring = 4×1 string array
"dog" "fish" "cat" "zebra"
newstring=["fish"; "zebra"]
newstring = 2×1 string array
"fish" "zebra"
difference=setdiff(oldstring,newstring)
difference = 2×1 string array
"cat" "dog"

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