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Python NLTK nltk.tokenize.ConditionalFreqDist()用法及代碼示例


借助nltk.tokenize.ConditionalFreqDist()方法,我們可以使用以下方法計算句子中單詞的出現頻率tokenize.ConditionalFreqDist()方法。

用法: tokenize.ConditionalFreqDist()
返回: Return the frequency distribution of words in a dictionary.

範例1:
在這個例子中,我們可以通過使用tokenize.ConditionalFreqDist()方法,我們能夠計算句子中單詞的出現次數。


# import ConditionalFreqDist() method from nltk 
from nltk.probability import ConditionalFreqDist 
from nltk.tokenize import word_tokenize 
     
# Create a reference variable for Class SExprTokenizer 
tk = ConditionalFreqDist() 
     
# Create a string input 
gfg = "Geeks for Geeks"
     
for word in word_tokenize(gfg):
   condition = len(word) 
   tk[condition][word] += 1
     
print(tk)

輸出:

FreqDist({‘Geeks’:2, ‘for’:1})

範例2:

# import ConditionalFreqDist() method from nltk 
from nltk.probability import ConditionalFreqDist 
from nltk.tokenize import word_tokenize 
     
# Create a reference variable for Class SExprTokenizer 
tk = ConditionalFreqDist() 
     
# Create a string input 
gfg = "G F G"
     
for word in word_tokenize(gfg):
   condition = len(word) 
   tk[condition][word] += 1
     
print(tk)

輸出:

FreqDist({‘G’:2, ‘F’:1})



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注:本文由純淨天空篩選整理自Jitender_1998大神的英文原創作品 Python | NLTK nltk.tokenize.ConditionalFreqDist()。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。