Question

我正在尝试将列添加到已添加元素的列表中。在堆栈上看到过类似的问题，但似乎都没有解决问题。

以下是我要做的事情：有一个单词列表和另一系列文本。我想选择包含“单词”列表中任何单词的所有文本。已经获得包含列表中任何单词的文本，但我还想将相应单词与特定文本相关联。代码到目前为止：

com=[]
for t in text.c:
    for w in words:
        if w in t:
            com.append(t)
            com = com + [w]

目前，它在文本下方的不同列中添加了第w个单词。如何添加列以便将相应的单词添加到不同的列但是同一行？ com是一个列表。

Eg:

text:
     c
0    this is good
1    You can improve more photos
2    development is required
3    keep up the good word
4    add more pics from different angles
5    add more good photos
6    this is not good for you

words=['good','photos']

required output:

0    this is good                 good
1    You can improve more photos  photos
2    keep up the good word        good
3    add more good photos         good
4    add more good photos         photos 
5    this is not good for you     good

Answer 1

您可以定义一个获取文本并返回匹配项的函数：

In [126]:
words=['good','photos']
def func(x):
    found=[]
    for word in words:
        if word in x:
            found.append(word)
    if len(found) > 0:
        return found

df['found'] = df['c'].apply(func)
df

Out[126]:
                                         c           found
index                                                     
0                             this is good          [good]
1              You can improve more photos        [photos]
2                  development is required            None
3                    keep up the good word          [good]
4      add more pics from different angles            None
5                     add more good photos  [good, photos]
6                 this is not good for you          [good]

Answer 2

我通过使用函数：namedtuple（）

来达到上面的输出

该功能可用作：

Lang = namedtuple("Lang", ("word", "c"))
com=[]
for f in c:
    for w in words:
        if w in f:
            com.append(Lang(w,f))

output: 
0    this is good                 good
1    You can improve more photos  photos
2    keep up the good word        good
3    add more good photos         good
4    add more good photos         photos 
5    this is not good for you     good

将列添加到循环中的列表中

2 个答案: