AttributeError:输入对象'MinimalFeatureExtractionSettings‘没有属性'n_processes’

Question

我正在尝试使用to包和extract_features()函数来提取特性。

新版本: 0.4.0.post0.dev1+ng19fa136

但是，我得到以下错误：

AttributeError:输入对象'MinimalFeatureExtractionSettings‘没有属性'n_processes’

代码：

import numpy as np
import pandas as pd

column_names = ['time_series1', 'time_series2','time_series3']
ts = np.random.rand(6,3)


df_to_extract = pd.DataFrame(data=ts, columns = column_names)

df_to_extract['id'] = 1
df_to_extract['time'] = np.arange(1,7)

#print(df_to_extract)

import tsfresh
from tsfresh import extract_features
from tsfresh import select_features
from tsfresh.utilities.dataframe_functions import impute
from tsfresh import extract_relevant_features
from tsfresh.feature_extraction import extract_features, MinimalFeatureExtractionSettings
from tsfresh.feature_extraction.settings import *
from tsfresh.feature_extraction.settings import FeatureExtractionSettings
import tsfresh.feature_extraction.settings
from tsfresh import utilities
from tsfresh import feature_extraction


extracted_features = extract_features(df_to_extract, 
                                      column_id="id", 
                                      column_sort="time", 
                                      parallelization= 'per_kind', 
                                      feature_extraction_settings= MinimalFeatureExtractionSettings)

软件包源代码：萃取/抽提

我在Win10上使用Python3.5 (Anaconda)。

我想这可能是某种进口错误。如何解决这个问题？

问题解决

要使它发挥作用，增加：

settings= MinimalFeatureExtractionSettings()

extracted_features = extract_features(df_to_extract, 
                                      column_id="id", 
                                      column_sort="time", 
                                      parallelization= 'per_kind', 
                                      feature_extraction_settings= settings)

Answer 1

再也没有MinimalFeatureExtractionSettings对象了。现在叫MinimalFCParameters。因此，您必须编写以下代码：

from tsfresh.feature_extraction import extract_features, MinimalFCParameters
...
minimalFCParametersForTsFresh = MinimalFCParameters()
extracted_features = extract_features(df_to_extract,column_id="id",default_fc_parameters = minimalFCParametersForTsFresh)