Improbable value for average speed

[MihaMi27]

Description

During parsing of a specific TCX file (3065.tcx, attached below, taken from Sport5, folder 1 I got a weird value for average speed. I've attached screenshots and code for my comparison between average speeds from TCXReader library and sport-activities-features library.

As you can see the marked values for total distance and average speed are different between both approaches. Other values seem fine.

However, if it is relevant here, both differ from the average and maximum speeds in the file.

File

3065.tcx.zip

Code

Code I've used for testing:

from sport_activities_features import TCXFile
import numpy as np
from tcxreader.tcxreader import TCXReader,TCXExercise

tcx_exercise: TCXExercise = TCXReader().read('3065.tcx')

tcx_file = TCXFile()
activity = tcx_file.read_one_file('3065.tcx',True)


print("SportActivitiesFeatures:")
print("Average speed: ",np.mean(activity['speeds']))
print("Max speed:",np.max(activity['speeds']))
print("Total distance:",np.sum(activity['distances']))
print("Delta Time:",activity['timestamps'][-1]-activity['timestamps'][0])
print("Average altitude:",np.mean(activity['altitudes']))
print("Max altitude:",np.max(activity['altitudes']))
print("Min altitude:",np.min(activity['altitudes']))
print("Average altitude:",np.mean(activity['heartrates']))
print("Max altitude:",np.max(activity['heartrates']))
print("Min altitude:",np.min(activity['heartrates']))
print()
print("TCXReader:")
print("Average speed: ",tcx_exercise.avg_speed)
print("Max speed:",tcx_exercise.max_speed)
print("Total distance:",tcx_exercise.distance)
print("Delta Time:",tcx_exercise.duration)
print("Average altitude:",tcx_exercise.altitude_avg)
print("Max altitude:",tcx_exercise.altitude_max)
print("Min altitude:",tcx_exercise.altitude_min)
print("Average Heart Rate:",tcx_exercise.hr_avg)
print("Max Heart Rate:",tcx_exercise.hr_max)
print("Min Heart Rate:",tcx_exercise.hr_min)