Error while using helperDown​loadPandas​etData function

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gaurav
gaurav 2024-1-23
回答： Gagan Agarwal 2024-1-30
While using this program
outputFolder = fullfile(tempdir,'Pandaset');
lidarURL = ['https://ssd.mathworks.com/supportfiles/lidar/data/' ...
'Pandaset_LidarData.tar.gz'];
helperDownloadPandasetData(outputFolder,lidarURL);
I am getting this error but i have installed Lidar toolbox
Unrecognized function or variable 'helperDownloadPandasetData'.
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Walter Roberson
Walter Roberson 2024-1-23
Try using
openExample('deeplearning_shared/Lidar3DObjectDetectionUsingPointPillarsExample')

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采纳的回答

Gagan Agarwal
Gagan Agarwal 2024-1-30
Hi Gaurav,
The issue you are facing is because the 'helperDownloadPandasetData' is not an inbuilt function of the Lidar Toolbox and in the documentation it is explicitly defined as a user defined function at the end of page. I tried to run the code after defining the function and it was working fine.
function helperDownloadPandasetData(outputFolder,lidarURL)
% Download the data set from the given URL to the output folder.
lidarDataTarFile = fullfile(outputFolder,'Pandaset_LidarData.tar.gz');
if ~exist(lidarDataTarFile,'file')
mkdir(outputFolder);
disp('Downloading PandaSet Lidar driving data (5.2 GB)...');
websave(lidarDataTarFile,lidarURL);
untar(lidarDataTarFile,outputFolder);
end
% Extract the file.
if (~exist(fullfile(outputFolder,'Lidar'),'dir'))...
&&(~exist(fullfile(outputFolder,'Cuboids'),'dir'))
untar(lidarDataTarFile,outputFolder);
end
end
For Additional Information please refer to the following documentation:
https://www.mathworks.com/help/deeplearning/ug/lidar-object-detection-using-complex-yolov4.html

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