How would you read a specific channel in a tdms file in matlab?

How would you call a specific channel in a struct that has been generated from a TDMS file.

In the attached picture I use convertTDMS to create a struct file. How do I go about this:-

Finding the index to match a name so that I can plot the data associated with that name?

for example how would you find the index of the string 'Synchronous/Air Manifold Pressure' in the Name and plot the coinciding data fo that Name?

Answer 1

[Voss]

If you might have any number of elements of the struct array data.Data.MeasuredData whose 'Name' field is 'Synchronous/Air Manifold Pressure', one way to plot their Data is:

idx = find(strcmp({data.Data.MeasuredData.Name},'Synchronous/Air Manifold Pressure'));
for ii = idx(:).'
    plot(data.Data.MeasuredData(ii).Data);
    hold on
end

If instead you know there will always be exactly one element of the struct array data.Data.MeasuredData whose 'Name' field is 'Synchronous/Air Manifold Pressure', you can make it simpler:

plot(data.Data.MeasuredData(strcmp({data.Data.MeasuredData.Name},'Synchronous/Air Manifold Pressure')).Data);

[Nandith Chandy]

Thank you very much. That is exactly what I wanted.

[Voss]

You're welcome!