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sensormotion's Issues

Question about step regularity

Hey,
I'm using your package right now to generate features for a dataset.
I have looked at the paper by Moe Nilssen et al. and tried to follow the steps for calculating step and stride regularity. However, I wonder why you still do the following calculation at the end:

step_reg = ac_d1 / ac_lag0
stride_reg = ac_d2 / ac_lag0

Can you help me with this?

I need help using this library!

Hi

I'm very interested in using this library in my project. I have a test of 2min walking at 100Hz and I collect the data from accelerometer, gyro and magnetometer of an Iphone 6.

I'm trying to use the library with my data but I could understand some things. For example this function sm.peak.find_peaks(ac_lags, ac, peak_type='peak', min_val= 0.6, min_dist=32, plot=True). What are the suitable values of min_val and min_dist parameters? Are they problem dependent? I have tried with many values and the step estimation is not correct.

Please, could you help me?

Best regards

sm.gait.step_regularity IndexError

step_reg, stride_reg = sm.gait.step_regularity(ac_peak_values)
File ".../python3.6/site-packages/sensormotion-1.1.0-py3.6.egg/sensormotion/gait.py", line 128, in step_regularity
ac_d2 = peaks_half[2] # second dominant period i.e. a stride (left-left)
sm.gait.step_regularity IndexError: index 2 is out of bounds for axis 0 with size 2

RTD PDF

Fix PDF rendering on readthedocs:

  • Package name
  • Version number
  • Blank pages
  • Missing module docs

Question

I am using sensormotion.py package for finding peaks for one of my applications. I want to know how normalized min_value (0-1) in peak.find_peaks is related to minimum detectable peak value.

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