Error using griddedInterpolant The grid vectors do not define a grid of points that match the given values.

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William Wheaton 2019-12-4

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https://ww2.mathworks.cn/matlabcentral/answers/494894-error-using-griddedinterpolant-the-grid-vectors-do-not-define-a-grid-of-points-that-match-the-given

评论： William Wheaton 2019-12-4

X=1:1:41;
Y=1:1:20;
V= [1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 5 2 2 2 2 5 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 3 3 3 3 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 2 3 3 3 3 2 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 2 2 2 2 2 2 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 5 1 1 2 2 2 2 2 2 1 1 5 5 5 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 1 2 2 2 2 2 2 2 1 1 5 5 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 7 7 1 1 7 7 7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 9 9 1 1 9 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 9 9 1 1 9 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 9 1 1 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 1 1 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5 1 1 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1;
    1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1];
Xq=1:.05:41;
Yq=1:.05:20;
[Xq,Yq]=meshgrid(Xq,Yq);
Vq=interp2(X,Y,V,Xq,Yq,'cubic');
surf(Xq,Yq,Vq)
title('NBA Injuries 2019 Season')
ylabel('Height')
xlabel('Width')
colorbar

I am trying to create a model of the human body using MATLAB. It is supposed to illustrate the most common injuries sustained by NBA players during the season. When I run my code I recieve 3 error messages. They are the following:

Error using griddedInterpolant
The grid vectors do not define a grid of points that match the given values.
Error in interp2>makegriddedinterp (line 228)
    F = griddedInterpolant(varargin{:});
Error in interp2 (line 128)
        F = makegriddedinterp({X, Y}, V, method,extrap);

I am terrible at MATLAB so I have no idea what any of this means. Any help is appreciated.

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Answer 1

Matt J 2019-12-4

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/494894-error-using-griddedinterpolant-the-grid-vectors-do-not-define-a-grid-of-points-that-match-the-given#answer_404787

You have 20 Y samples, but your V has 21 rows.

>> whos X Y V
  Name       Size            Bytes  Class     Attributes
  V         21x41             6888  double              
  X          1x41              328  double              
  Y          1x20              160  double   