python bokeh k线图
时间: 2023-08-27 16:19:36 浏览: 264
要在Bokeh中绘制K线图,您可以按照以下步骤进行操作:
1. 首先,确保您已经安装了Bokeh库。可以通过运行以下命令来安装它:
```
pip install bokeh
```
2. 导入必要的库:
```python
import pandas as pd
from bokeh.plotting import figure, show
from bokeh.io import output_notebook
from bokeh.sampledata.stocks import AAPL # 示例数据中包含了一个股票数据集,这里使用AAPL(苹果公司)作为示例
```
3. 将示例数据加载到Pandas的DataFrame中:
```python
# 将示例数据加载到DataFrame中
df = pd.DataFrame(AAPL)
# 将时间列设置为索引列,并按照升序排序
df['date'] = pd.to_datetime(df['date'])
df = df.set_index('date').sort_index()
```
4. 创建一个Bokeh图表,并将K线图数据添加到图表中:
```python
# 设置输出为Notebook
output_notebook()
# 创建一个新的Bokeh图表
p = figure(title='AAPL Candlestick Chart', x_axis_type='datetime', plot_width=800, plot_height=400)
# 绘制K线图
p.segment(df.index, df['high'], df.index, df['low'], color='black')
p.vbar(df.index[df['close'] > df['open']], width=0.5, bottom=df['open'][df['close'] > df['open']], top=df['close'][df['close'] > df['open']], fill_color='green', line_color='black')
p.vbar(df.index[df['close'] < df['open']], width=0.5, bottom=df['close'][df['close'] < df['open']], top=df['open'][df['close'] < df['open']], fill_color='red', line_color='black')
# 显示图表
show(p)
```
这样,您就可以在Bokeh中绘制K线图了。请注意,上述示例使用了示例数据,您可以根据需要替换为自己的股票数据。希望对您有所帮助!如有任何问题,请随时向我提问。
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