Getting NameError: name 'countVectorizer' is not defined in Pycharm

Question

需要有关错误的帮助 NameError：名称 'countVectorizer' 未在 PyCharm

中定义

我正在尝试从此源执行特征提取代码 https://github.com/chdoig/pytexas2015-ml

文件名：1-Feature_extraction.ipynb

import numpy as np
import pandas as pd


train_data = pd.read_csv('labeledTrainData.tsv',sep='\t')
print(train_data)
print(train_data.iloc[1].review)

test_data = pd.read_csv('testData.tsv',sep = '\t')
print(test_data)

import matplotlib.pyplot as plt
import seaborn as sns

train_data['review_len'] = train_data.review.apply(len)
len_pl = plt.hist(train_data.review_len.values)
plt.show(len_pl)

#describe negative reviews
print(train_data[train_data.sentiment==0].describe())
print(train_data[train_data.sentiment==1].describe())

#inspecting outliers
print(train_data[train_data.review_len==52].review.all())
print(train_data[train_data.review_len==13708].review.all())

#word exrtaction

from sklearn.feature_extraction.text import CountVectorizer

vocab = ['awesome', 'terrible']
simple_vectorizer = countVectorizer(vocabulary=vocab)
bow = simple_vectorizer.fit_transform(train_data.review).todense()
print(bow)

Error/Warning: C:\Users\hi\PycharmProjects\Practice2\venv\Scripts\python.exe C:/Users/hi/PycharmProjects/Practice2/P1.py C:\Users\hi\PycharmProjects\Practice2\venv\lib\site-packages\sklearn\externals\joblib\externals\cloudpickle\cloudpickle.py:47: DeprecationWarning: imp 模块已弃用，取而代之的是 importlib；请参阅模块的文档以了解其他用途进口进出口追溯（最近一次通话）：文件 "C:/Users/hi/PycharmProjects/Practice2/P1.py"，第 32 行，位于 simple_vectorizer = countVectorizer(词汇=词汇) NameError：名称 'countVectorizer' 未定义

进程已完成，退出代码为 1

Answer 1

您正在导入 CountVectorizer 但引用 countVectorizer.

Getting NameError: name 'countVectorizer' is not defined in Pycharm

Getting NameError: name 'countVectorizer' is not defined in Pycharm

python

countvectorizer