load .mat file in simulink from python hdf5storage library?

Question

I am trying to load/read some random data in simulink I created using the Python module `hdf5storage`. I created `.mat` file in Python (simulink supports version 7.3 only) using this code: # get code on https://pypi.python.org/pypi/hdf5storage/0.1.3 import hdf5storage import numpy as np matcontent = {} matcontent[u'some_numbers'] = np.array([10, 50, 20]) # each key must be a unicode string hdf5storage.write(matcontent, '.', 'data.mat', matlab_compatible=True) I can load the written file in matlab but not in simulink giving the error: > Caused by: > > Simulink does not support loading the input data in the variable 'bar' > in file 'C:\\......\\6D\\data.mat'. The From File block can only load > MATLAB timeseries objects, structures of MATLAB timeseries objects, > or two-dimensional arrays consisting of one-dimensional, double, > non-complex samples. It says I have to create timeseries objects but how to create it in python?

Answer 1

Hi,

Since you can open the file in matlab, you should be able to convert the data to a time series object using matlab following

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

for use in Simulink.

I'm not sure how you'd do this directly in python, but since you're trying to process the data in matlab anyway, I think this should just be a couple lines of matlab code.

Good luck,

Jason