I have read Mf4 file using "vehicle network Toolbox", Now i want to convert this to other formats such as CSV/PCD

i have used this function of tool box to read data,

dataChanTable = mdfRead("VehicleData.mf4", Channel=chanInfo)

>> writetable(data, 'output.csv');

Error using writetable (line 21)

Type 'timetable' is not supported. Use writetimetable instead.

Answer 1

[Sumukh]

Hi Rajendra,

The “mdfRead” command reads the .MF4 file and outputs a cell array of timetables. To convert the output “dataChanTable” into .CSV file format, please follow the following steps:

• The command “writetimetable” can be used to convert one timetable at a time in the cell array “dataChanTable” into .CSV format. You can use the following command:

writetimetable(dataChanTable{1},”output.csv”) % 1 can be replaced by required index of timetable. 

• To convert multiple timetables into multiple .CSV files, you can use the following for-loop to loop through the timetables and create distinct .CSV files:

for i = 1:length(dataChanTable) 
    filename = sprintf('output_%d.csv', i); 
    writetimetable(dataChanTable{i}, filename); 
end 

You can refer to the following documentation to know more about the “writetimetable” command:

https://www.mathworks.com/help/matlab/ref/writetimetable.html

.PCD files are point cloud files representing the coordinates of data-points in 3-D space. It is irrelevant to convert the given data into point cloud files.

I hope this answers the query.