featuretools.primitives.PunctuationCount#

class featuretools.primitives.PunctuationCount[source]#

确定字符串中的标点符号数量.

Description:

给定字符串列表,确定每个字符串中标点符号的数量.查找以下任意字符:

!”#$%&’()*+,-./:;<=>?@[]^_`{|}~

如果字符串缺失,返回 NaN.

Examples

>>> x = ['This is a test file.', 'This is second line', 'third line: $1,000']
>>> punctuation_count = PunctuationCount()
>>> punctuation_count(x).tolist()
[1.0, 0.0, 3.0]
__init__()[source]#

Methods

__init__()

flatten_nested_input_types(input_types)

将嵌套的列模式输入展平成一个列表.

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()

process_text(text)

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