Index in position 1 is invalid. Array indices must be positive integers or logical values. getting this error command while running this code

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JIBIN GEORGE
JIBIN GEORGE 2022-2-2
评论： JIBIN GEORGE 2022-2-2
old_obs_1 = plot3(Obs5(1,1), Obs5(1,2), Z(round(Obs5(1,2)),round(Obs5(1,1))),'o','MarkerSize',20, 'MarkerFaceColor','r','MarkerEdgeColor', 'k');
Please help
Thanks in advance

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采纳的回答

Simon Chan
Simon Chan 2022-2-2
Ran in:
At least the value on Obs5(1,2) is <0.5
Obs5 = [0.5 0.4];
Z=rand(2,3);
old_obs_1 = plot3(Obs5(1,1), Obs5(1,2), Z(round(Obs5(1,2)),round(Obs5(1,1))),'o','MarkerSize',20, 'MarkerFaceColor','r','MarkerEdgeColor', 'k');
Index in position 1 is invalid. Array indices must be positive integers or logical values.

更多回答（1 个）

KSSV
KSSV 2022-2-2
Ran in:
This error is simple, you are trying to extract more number of elements than present in the array.
A = rand ; % A is aconstat i.e 1x1 array.
A(1) % no error
ans = 0.6042
A(1,2) % error becasue there is no second element, alse A(2) means the same
Index in position 2 exceeds array bounds. Index must not exceed 1.
Check your variable dimensions. You have used index 2, it seemsthere is no second element.

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