Dear Dr. Tinevez,
I have just started using TrackMate to analyze time-lapse images of cell migration experiments. TrackMate is a great took! I appreciate very much you and your colleagues to create and maintain the tool.
Now, I face a problem during loading an .xml file into Matlab using a function provided, which seems difficult to sort out on my own. It would be grateful if you could give me some advice.
This is my second set of analyses. My first analysis went well - I could load an output xml file into Matlab and handle the data values of a total of 107 tracks for visualization. This time, I edited and selected a total of 171 tracks and created an output xml file. When I execute the following code in Matlab
tracks = importTrackMateTracks(file_path_tracks);
This gives me error messages;
dot indexing not supported for this type of variable
Error: importTrackMateTracks (line 121)
t = str2double(detectionNode.getAttribute(‘t’));
I found that the error occurred in Parse section in importTrackMateTracks.m when i=101 or larger.
So I removed the 101st track to the 171st track from the xml file and tried to load into Matlab, the error did not occur. I then created and tried to load an xml file consisting of the 101st to the 171st track, the error occurred.
This is where I am stuck at the moment, and could you please let me know if you could notice anything in my procedure.
Another issue I noticed is that the ‘t’ value doesn’t start with the minimum value of the time point of the track. For example, in the 102nd track, it goes as follow;...
This particularly happens after the 100th track. I guess it is just that the last time point comes up at the first, and doesn’t influence subsequent analysis. Also, the number of ‘nSpots’ looks incorrect after the 101st track. Would it cause the trouble??..
My computing environment is
MacBook Pro(2015), MacOS 10.14.5
Fiji Ver 2.0.0-rc-69/1.52n
TrackMate Ver 3.8.0
Analyzing image: a time-lapse consisting of 96 frames
and several files relevant to the issues raised above are attached.
Should you need any further information and files, I would be happy to send you.
Many thanks again.