Hi,
Based on the error you are receiving, it appears that the sourceName input argument in “lidarLabeler(sourceName, @FunctionHandle, timestamps)” must be a string scalar or character vector. This means that you must pass a file name as a string or character vector, rather than a variable containing a file name.
In the code snippet you provided, you are correctly using “uigetfile” to open a file and obtain its name as a string. However, it looks like you are combining the directory and file name using square brackets (fileName = [Directory File_name];) which results in a character array, not a string scalar. Instead, you should use “fullfile” to concatenate directory and file name as a string:
[fileName, directory] = uigetfile(fileFilter, 'Open a .pcap file');
sourceName = fullfile(directory, fileName);
This will create a string scalar with the full path to the file, which you can then pass to the “lidarLabeler” function.
Note that the “fullfile” function takes care of the appropriate separator character for the platform you are working on (e.g., '' on Windows, '/' on Linux/Mac), so you don't need to manually add it or worry about platform-specific issues.
You can refer to these resources
