Index in position 2 exceeds array bounds (must not exceed 1)

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Frisda Sianipar
Frisda Sianipar 2021년 4월 28일
댓글: Frisda Sianipar 2021년 5월 4일
i get error on this code, can anybody help me please?
The error: Index in position 2 exceeds array bounds (must not exceed 1).
Error in KNN (line 3)
group=latih(:,3);
the code :
x=xlsread("datatraining.xlsx");
latih=x;
group=latih(:,3);
latih = [latih(:,1) latih(:,2)];
for i = 1 : 80
y=xlsread("datatesting.xlsx");
sampel = y;
test = [sampel(:,1) sampel(:,2)];
%sampel = [2.6136 0.1284 1.3017 -0.8089 0.0441 -0,2084];
hasil=knnclassify(test,latih,group);
end
nama = "hasil KNN.xlsx";
hasil = [sampel(:,1) sampel(:,2) sampel(:,3) hasil];
xlswrite(nama,hasil);
Thankyou in advance
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David Fletcher
David Fletcher 2021년 4월 29일
편집: David Fletcher 2021년 4월 29일
OK - if you look at the documentation of xlsread, it says the function is no longer recommended to be used. Better to use readtable instead.
x=readtable("datatraining.xlsx");
latih=x;
group=latih(:,3);
latih = [latih(:,1) latih(:,2)];
for i = 1 : 80
y=readtable("datatesting.xlsx");
sampel = y;
test = [sampel(:,1) sampel(:,2)];
%sampel = [2.6136 0.1284 1.3017 -0.8089 0.0441 -0,2084];
hasil=knnclassify(test,latih,group);
end
nama = "hasil KNN.xlsx";
hasil = [sampel(:,1) sampel(:,2) sampel(:,3) hasil];
xlswrite(nama,hasil);
As to your other code, I can't comment as I don't have the toolbox on hand with knnclassify. The use of xlswrite (at the end of your code) is also deprecated, so may possibly also produce unpredictable results (as you found with xlsread)
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Frisda Sianipar
Frisda Sianipar 2021년 5월 4일
it still have error sir

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