featuretools.primitives.NaturalLogarithm

class featuretools.primitives.NaturalLogarithm[source]

Computes the natural logarithm of a number.

Examples

>>> log = NaturalLogarithm()
>>> results = log([1.0, np.e]).tolist()
>>> results = [round(x, 2) for x in results]
>>> results
[0.0, 1.0]
__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

compatibility

Additional compatible libraries

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

uses_calc_time

uses_full_dataframe