featuretools.primitives.CumulativeTimeSinceLastFalse

class featuretools.primitives.CumulativeTimeSinceLastFalse

Determines the time since last False value.

Description:

Given a list of booleans and a list of corresponding datetimes, determine the time at each point since the last False value. Returns time difference in seconds. NaN values are ignored.

Examples

>>> from datetime import datetime
>>> cumulative_time_since_last_false = CumulativeTimeSinceLastFalse()
>>> booleans = [False, True, False, True]
>>> datetimes = [
...     datetime(2011, 4, 9, 10, 30, 0),
...     datetime(2011, 4, 9, 10, 30, 10),
...     datetime(2011, 4, 9, 10, 30, 15),
...     datetime(2011, 4, 9, 10, 30, 29)
... ]
>>> cumulative_time_since_last_false(datetimes, booleans).tolist()
[0.0, 10.0, 0.0, 14.0]

__init__()

Methods

__init__()
flatten_nested_input_types(input_types)	Flattens nested column schema inputs into a single list.
generate_name(base_feature_names)
generate_names(base_feature_names)
get_args_string()
get_arguments()
get_description(input_column_descriptions[, ...])
get_filepath(filename)
get_function()

Attributes

base_of
base_of_exclude
commutative
default_value	Default value this feature returns if no data found.
description_template
input_types	woodwork.ColumnSchema types of inputs
max_stack_depth
name	Name of the primitive
number_output_features	Number of columns in feature matrix associated with this feature
return_type	ColumnSchema type of return
stack_on
stack_on_exclude
stack_on_self
uses_calc_time
uses_full_dataframe