featuretools.primitives.NumWords

class featuretools.primitives.NumWords

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
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