Python 使用nltk绘制50个最不频繁的单词

我如何绘制50个最不常用的单词

也许我的想法太复杂了。我是这样理解的：

distr = nltk.FreqDist(word for word in items)
words = distr .keys()
seldomwords = words [:50]

我现在该怎么画呢

通过

FreqDist

的

plot

功能，我获得了所有或仅x个最频繁的单词

我试过这样的方法：

distr .plot(:50)

---

但这在语法上是不正确的。

这有点奇怪，但最简单的方法是

• 首先，您必须从

  FreqDist

• 然后重新创建最不常见的项，并将其反馈到新的FreqDist对象中
• 使用新的FreqDist命令使用

  FreqDist.plot（）

[代码]：

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()
>>> last_three = FreqDist(dict(fd.most_common()[-3:]))
>>> last_three.plot()

[out]：

[代码]：

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()
>>> last_three = FreqDist(dict(fd.most_common()[-3:]))
>>> last_three.plot()

[out]：

---

这有点奇怪，但最简单的方法是

• 首先，您必须从

  FreqDist

• 然后重新创建最不常见的项，并将其反馈到新的FreqDist对象中
• 使用新的FreqDist命令使用

  FreqDist.plot（）

[代码]：

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()
>>> last_three = FreqDist(dict(fd.most_common()[-3:]))
>>> last_three.plot()

[out]：

[代码]：

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()
>>> last_three = FreqDist(dict(fd.most_common()[-3:]))
>>> last_three.plot()

[out]：

---

看一看，看一看，这就是我要找的。谢谢这就是我要找的。谢谢