我希望创建一个简单的条形图，其中“源”的分组定性值是 x 轴，“retweet_count”的定量值是 y 轴。
我想要按来源的转发总数。
_id created_at geo id retweet_count source text
0 52c2388a0b434a166c94a648 2013-12-31 03:22:30 None 417858271957893121 0 web @sirenasmaster I'm one of 4 people that I foll...
1 52c2388a0b434a166c94a649 2013-12-31 03:22:29 None 417858271350120449 0 Twitter for iPhone Thanks Mack brown always looked up to you and ...
2 52c2388a0b434a166c94a64a 2013-12-31 03:22:26 None 417858255121948672 0 Twitter for iPhone @CottonGent I never said case was awesome, but...
3 52c2388a0b434a166c94a64b 2013-12-31 03:22:20 None 417858229625163776 0 buzztap Longhorn Digest (Scout) >> UA Game: DB C...
4 52c2388a0b434a166c94a64c 2013-12-31 03:22:15 None 417858211186626560 1 web RT @rudyp_: Marvin is on it tonight. He's a tr...
5 52c2388a0b434a166c94a64d 2013-12-31 03:22:12 None 417858197550931970 2 Twitter for iPhone RT @marvintran76: If you're a Longhorn and you...
6 52c2388a0b434a166c94a64e 2013-12-31 03:21:49 None 417858102042443776 1 Twitter for iPhone Always will be a Longhorn Fan 👌🐂
7 52c2388a0b434a166c94a64f 2013-12-31 03:21:38 None 417858055955423232 0 Twitter for Android Longhorn and duke basketball, and lakers are o...
8 52c2388a0b434a166c94a650 2013-12-31 03:21:34 None 417858036716142592 1 Twitter for iPhone Marvin is on it tonight. He's a true longhorn ...
9 52c2388a0b434a166c94a651 2013-12-31 03:21:32 None 417858031880134657 0 web @ChipBrownOB but twice as many as there are Lo..
如果我使用以下简单代码，它会为每个单独的源条目提供一个栏:
df.plot(x='source', y='retweet_count', kind='bar')
这是我一直在努力的事情，但它可能就在我面前。
最佳答案
您可以分组并绘制然后:
>>> df.groupby('source')['retweet_count'].sum().plot(kind='bar')
<matplotlib.axes.AxesSubplot object at 0x039C8070>
关于python - Pandas 数据框条形图 - 定性变量？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20852460/