sit2standpy.Transition

class sit2standpy.Transition(times, t_type='SiSt', v_displacement=None, max_v_velocity=None, min_v_velocity=None, max_acceleration=None, min_acceleration=None, sparc=None)

Object for storing information about a postural transition

Parameters:

times : array_like

array_like of start and end timestamps (pandas.Timestamp), [start_time, end_time]. Duration will be calculated as the difference.

t_type : {‘SiSt’, ‘StSi’}, optional

Transition type, either ‘SiSt’ for sit-to-stand, or ‘StSi’ for stand-to-sit. Default is ‘SiSt’.

v_displacement : {float, None}, optional

Vertical displacement during the transition, or None. Default is None.

max_v_velocity : {float, None}, optional

Maximum vertical velocity during the transition, or None. Default is None.

min_v_velocity : {float, None}, optional

Minimum vertical velocity during the transition, or None. Default is None.

max_acceleration : {float, None}, optional

Maximum acceleration during the transition, or None. Default is None.

min_acceleration : {float, None}, optional

Minimum acceleration during the transition, or None. Default is None.

sparc : {float, None}, optional

SPectral ARC length parameter, measuring the smoothness of the transition, or None. Default is None.

Attributes:

times : tuple

Tuple of start and end times.

start_time : pandas.Timestamp

Start timestamp of the transition.

end_time : pandas.Timestamp

End timestamp of the transition.

duration : float

Duration of the transition in seconds.

ttype : str

Short transition type name.

long_type : str

Full transition type name.

v_displacement : {float, None}

Vertical displacement.

max_v_velocity : {float, None}

Maximum vertical velocity.

min_v_velocity : {float, None}

Minimum vertical velocity.

max_acceleration : {float, None}

Maximum acceleration.

min_acceleration : {float, None}

Minimum acceleration.

sparc : {float, None}

SPectral ARC length measure of smoothness.