HELP: Index in position 2 is invalid. Array indices must be positive integers or logical values.

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Thanh Vu
Thanh Vu 2022-3-20
回答： Sulaymon Eshkabilov 2022-3-20
I got this error in my code file: "Index in position 2 is invalid. Array indices must be positive integers or logical values."
It refers to these lines:
Index in position 2 is invalid. Array indices must be positive integers or logical values.
Error in straighten>getInterpolatedValue (line 65)
I(1,1) = IM(x(1),y(1))*(1-x(3))*(1-y(3));
Error in straighten (line 50)
IM2(ct,ct2) = getInterpolatedValue(IM,xStart,yStart);
Error in test7 (line 68)
IM2 = straighten(IM,[x;y]',450);
I've tried checking if I entered the equation wrong or if I have to save certain values as integers but nothing seems to work.I have attached 2 files of my code. What should I do to fix this error? Any advice would be greatly appreciated.

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回答（1 个）

Sulaymon Eshkabilov
Your fcn file straighten.m that contains one crucial mistake, i.e.:
The command in it on line 10 has a conflict:
IM2(:,:,ct)=straighten(IM(:,:,ct),pts,width); that must be fixed.
Note that the same function within the same function file can't called.

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