python 词云图有重复的怎么办
时间: 2023-06-23 11:45:05 浏览: 362
如果 Python 生成的词云图中出现了重复的词语,可以尝试以下几种方法解决:
1. 使用 `WordCloud` 类的 `generate_from_frequencies` 方法生成词云图时,可以将词频字典中重复的词语合并,例如:
```python
from wordcloud import WordCloud
import matplotlib.pyplot as plt
# 词频字典,包含重复的词语
frequencies = {'apple': 5, 'banana': 3, 'orange': 2, 'apple': 4}
# 将重复的词语合并
merged_freq = {}
for k, v in frequencies.items():
if k in merged_freq:
merged_freq[k] += v
else:
merged_freq[k] = v
# 生成词云图
wc = WordCloud().generate_from_frequencies(merged_freq)
plt.imshow(wc)
plt.axis('off')
plt.show()
```
2. 在生成词云图前,先使用 Python 的 `set` 类型去重,例如:
```python
from wordcloud import WordCloud
import matplotlib.pyplot as plt
# 包含重复词语的文本
text = 'apple apple banana orange apple'
# 将文本中的词语去重
words = set(text.split())
# 生成词云图
wc = WordCloud().generate(' '.join(words))
plt.imshow(wc)
plt.axis('off')
plt.show()
```
3. 在词云图生成后,使用 Python 的 `Pillow` 库进行去重,例如:
```python
from wordcloud import WordCloud
from PIL import Image
import numpy as np
import matplotlib.pyplot as plt
# 生成词云图
wc = WordCloud().generate('apple apple banana orange apple')
# 将词云图转换为数组
arr = np.array(wc)
# 去除重复的像素点
arr[np.sum(arr, axis=2) == 0] = 255
# 将数组转换为图像并显示
img = Image.fromarray(arr)
plt.imshow(img)
plt.axis('off')
plt.show()
```
希望这些方法能帮助你解决词云图中出现重复词语的问题。
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