Is there a method within KNIME to import MATLAB MAT files? I've previously imported *.csv data with great success but don't really want to write a conversion script in python/MATLAB unless I have to...
There is a matlab extension, did you check if this is possible with it?
We don't have a native node which can read the files
The MATLAB scripting extension is broken for me, and has been for some time.
There's an R package R.matlab which says it can read .mat files. Perhaps you could use that in an R script node.
Hello 
i have a nice code that solves my matlab.mat file reading problem
myFile= h5py.File(‘matfile.mat’,‘r’)
myData = myFile.get(‘DATA’).value
output_table = pd.DataFrame(np.array(myData))
As a quick fix i executed that code in the “DL Python Network Executor”.
Can anyone tell me what would be the proper node for that?
Thx!!
How about a Python Script 1:1 node?
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Hey @ScottF ,
thanks for your reply!
I tried “python object reader”, but this one has a “blue square” output and does not fit to e.g. “column splitter”.
The “python Script (1=>1)” is better, but still requires an input. So i can use “Table Creator” to produce an dummy input. Which is still not very elegant.
If there was “python Script (0=>1)” that would be ideal
Cheers
Niko
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Hey @julian.bunzel,
now we got it. THX!!
Since i spend (too much 
) time on that… here the summary:
Load matlab -v7.3 .mat files with KNIME using python 3.6
Take the “python source” node with
myFile = h5py.File(‘matfile.mat’,‘r’)
myData = myFile.get(‘DATA’).value
output_table = pd.DataFrame(np.array(myData))
Have fun
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