featuretools.primitives.NUniqueDaysOfCalendarYear

class featuretools.primitives.NUniqueDaysOfCalendarYear

Determines the number of unique calendar days.

Description:

Given a list of datetimes, return the number of unique calendar days. The same date in two different years is counted as one. So Feb 21, 2017 is not unique from Feb 21, 2019.

Examples

>>> from datetime import datetime
>>> n_unique_days_of_calendar_year = NUniqueDaysOfCalendarYear()
>>> times = [datetime(2019, 2, 1),
...          datetime(2019, 2, 1),
...          datetime(2018, 2, 1),
...          datetime(2019, 1, 1)]
>>> n_unique_days_of_calendar_year(times)
2

__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