Replace number with text
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stelios loizidis
am 23 Sep. 2021
Beantwortet: Walter Roberson
am 23 Sep. 2021
Hello, I have the following problem. I have a matrix A which has dimensions of 300x350. In this matrix I want to replace the value 5 with the phrase "NO". I wrote a small code but it does not replace. I attach the code.
% finding positions of number 5 from table A.
[i1,k1]=find(A==5);
% Replace value 5 with text "NO"
for i=1:length(i1)
for j=1:length(k1)
if A==5
A(i1(i),k1(j))=disp('NO');
end
end
end
Your help is invaluable.
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Akzeptierte Antwort
KSSV
am 23 Sep. 2021
Bearbeitet: KSSV
am 23 Sep. 2021
Instead of a string, you can try replacing it with NaN.
% finding positions of number 5 from table A.
[i1,k1]=find(A==5);
% Replace value 5 with text "NO"
for i=1:length(i1)
for j=1:length(k1)
if A==5
A(i1(i),k1(j))=NaN ;
end
end
end
Also you need not tuse a loop.
idx = A == 5 ;
A(idx) = NaN ;
Weitere Antworten (1)
Walter Roberson
am 23 Sep. 2021
Adjust to suit
A = magic(7);
newA = num2cell(A);
mask = mod(A,5) == 0;
newA(mask) = {'NO'};
newA
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