featuretools.primitives.NumWords#

class featuretools.primitives.NumWords[source]#

Determines the number of words in a string. Words are sequences of characters delimited by whitespace.

Examples

>>> num_words = NumWords()
>>> num_words(['This is a string',
...            'Two words',
...            'no-spaces',
...            'Also works with sentences. Second sentence!']).tolist()
[4, 2, 1, 6]
__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

series_library

stack_on

stack_on_exclude

stack_on_self

uses_calc_time

uses_full_dataframe