Ngram со счетом в желаемом выходе ниже - PullRequest
1 голос
/ 22 марта 2019

следующее привело меня к выводу ниже:

        words   freq
0        hello   5
1        yes     10


I would like the above output to be same for ngrams(4). The results is only showing freq with "1". Can someone help me tune the codes for ngrams and as per the above output. The requirement is Ngrams with freqencies and output in excel(xlsx).

Примеры, показанные ниже:

 (('benito', 'kanchan'), 1),
 (('kanchan', 'tata'), 1),
 (('tata', 'arora'), 1),

So far the code:

df = pd.read_excel(r"Filename")

#Converting to lovercase
df['Body'] = df['Body'].apply(lambda x: " ".join(x.lower() for x in x.split()))
df['Body'].head()

#Count of Words
df['word_count'] = df['Body'].apply(lambda x: len(str(x).split(" ")))
df[['Body','word_count']].head()

#Removing Punctuation
df['Body'] = df['Body'].str.replace('[^\w\s]','')
df['Body'].head()

#Removing Stop Words
from nltk.corpus import stopwords
stop = stopwords.words('english')

df['Body'] = df['Body'].apply(lambda x: " ".join(x for x in x.split() if x not in stop))
df['Body'].head()

#df['Body'] = df['Body'].astype('|S')

# Word Count
tf1 = (df['Body']).apply(lambda x: pd.value_counts(x.split(" "))).sum(axis = 0).reset_index()
print (tf1)
tf1.columns = ['words','tf']
tf1

Ngrams из коллекции импорта Counter из textblob импортировать TextBlob a = TextBlob (tf1 ['words'] [0]). ngrams (4) a = [','. join (map (str, l)) для l в a] печать (а) counter = (Счетчик (а)) counter.most_common (150) counter.columns = ['ngram', 'tf'] Счетчик

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