load .mat file in simulink from python hdf5storage library

Asked Dec 01 '15 at 12:21

Active Dec 01 '15 at 13:23

Viewed 333 times

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?

edited Dec 01 '15 at 13:23

albert

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asked Dec 01 '15 at 12:21

Chandy Alex

I think your array has size `[10, 50, 20]`. Would it work to reshape it to e.g. `[10, 1000]` before saving, and then reshaping back to desired size in Simulink? – mikkola Dec 01 '15 at 12:53
2

*"[...] or two-dimensional arrays consisting of one-dimensional, double, non-complex samples."* Does it work with, say, `matcontent[u'some_numbers'] = np.array([[10.0, 50.0, 20.0]])`? – Warren Weckesser Dec 01 '15 at 13:01
@mikkola same result ,no change – Chandy Alex Dec 02 '15 at 05:26
@WarrenWeckesser ...nothing happen – Chandy Alex Dec 02 '15 at 05:29

load .mat file in simulink from python hdf5storage library

0 Answers0