featuretools.primitives.First

class featuretools.primitives.First[source]

Determines the first value in a list.

Examples

>>> first = First()
>>> first([1, 2, 3, 4, 5, None])
1.0
__init__()

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

Methods

__init__()

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

return_type

stack_on

stack_on_exclude

stack_on_self

uses_calc_time