Unrecognized function or variable 'findNearestNeighbors'. in R2020b

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Emre Can Ertekin 2020-10-2

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https://ww2.mathworks.cn/matlabcentral/answers/603892-unrecognized-function-or-variable-findnearestneighbors-in-r2020b

评论： Emre Can Ertekin 2020-10-2

I get an error like this Unrecognized function or variable 'findNearestNeighbors'. while using findNearestNeighbors function. I have Computer Vision Toolbox and UAV toolbox is downloaded and installed. How can I solve this problem ?

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Ameer Hamza 2020-10-2

在 MATLAB Online 中打开

What is the complete error message. What is the output of

which -all findNearestNeighbors

Emre Can Ertekin 2020-10-2

compete error message is "Unrecognized function or variable 'findNearestNeighbors'."

and output is ">> which -all findNearestNeighbors

'findNearestNeighbors' not found."

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Answer 1

Steven Lord 2020-10-2

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https://ww2.mathworks.cn/matlabcentral/answers/603892-unrecognized-function-or-variable-findnearestneighbors-in-r2020b#answer_504088

findNearestNeighbors is a method of pointCloud objects. You must pass a pointCloud object into it as the first input argument. Both the documentation pages for the method in UAV Toolbox and in Computer Vision Toolbox state that the first input is a "Point cloud, specified as a pointCloud object."

Are you trying to call this method with a pointCloud as the first input or with something else as the first input? I suspect the latter.