featuretools.primitives.AvgTimeBetween

class featuretools.primitives.AvgTimeBetween(unit='seconds')

Computes the average number of seconds between consecutive events.

Description:

Given a list of datetimes, return the average time (default in seconds) elapsed between consecutive events. If there are fewer than 2 non-null values, return NaN.

Parameters

unit (str) – Defines the unit of time. Defaults to seconds. Acceptable values: years, months, days, hours, minutes, seconds, milliseconds, nanoseconds

Examples

>>> from datetime import datetime
>>> avg_time_between = AvgTimeBetween()
>>> times = [datetime(2010, 1, 1, 11, 45, 0),
...          datetime(2010, 1, 1, 11, 55, 15),
...          datetime(2010, 1, 1, 11, 57, 30)]
>>> avg_time_between(times)
375.0
>>> avg_time_between = AvgTimeBetween(unit="minutes")
>>> avg_time_between(times)
6.25

__init__(unit='seconds')

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__([unit])	Initialize self.
generate_name(base_feature_names, …)
generate_names(base_feature_names, …)
get_args_string()
get_arguments()
get_filepath(filename)
get_function()

Attributes

base_of
base_of_exclude
commutative
default_value
input_types
max_stack_depth
name
number_output_features
stack_on
stack_on_exclude
stack_on_self
uses_calc_time