Error message on if functions with two arrays

2017 11 17
2 个回答
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更新时间：2017 11 17
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Hi,
Using two if conditions, I'm trying to compare the subsequent values of an array and the second value of these with the same row of another vector. Somehow, it returns the error message, that the index exceeds the matrix. In excel, it's just a simple if function IF(AND(A1<>A2,A2=B2),1,0). Any idea where I'm running wrong? I kindly attached the matlab code, too:
wi1 = zeros (N,1);
for i=1:N if roi1(i+1)~= roi1(i) && roi1(i)== buobem(i) wi1 = 1; else wi1 = 0; end end
Any help would be very much appreciated, please. Thank you

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Star Strider
Star Strider 2017-11-17

1 个投票

Guessing here, because of the paucity of information.
Consider:
for i=1:N-1
instead.

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2017-11-17
编辑：Andrei Bobrov 2017-11-17

1 个投票

wi1 = zeros (N,1);
for ii=2:N
if roi1(ii-1)~= roi1(ii) && roi1(ii)== buobem(ii)
wi1(ii) = 1;
else
wi1(ii) = 0;
end
end
or
roi1 = roi1(:);
buobem = buobem(:);
wi1 = [0; diff(roi1)~=0 & roi1(2:end)== buobem(2:end)];

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