SingleAsset 函數介紹

指定單一特定資產為 True，其餘為 False。

Parameters: - asset (zipline.assets.Asset)
指定的單一資產。

```python from zipline.pipeline.filters import SingleAsset from zipline.pipeline import Pipeline from zipline.api import symbol, attach_pipeline, pipeline_output import pandas as pd

def make_pipeline(): return Pipeline( columns = { "SingleAsset": SingleAsset( asset = assets[4] # 假設 assets[4] 為指定資產 ) } )

def initialize(context): attach_pipeline(make_pipeline(), 'my_pipe')

def handle_data(context, data): pipe = pipeline_output('my_pipe') print("=" * 100) print(pipe)

def analyze(context, perf): pass

run_pipeline(make_pipeline(), pd.Timestamp("2019-01-02", tz='utc'), pd.Timestamp("2019-01-02", tz='utc'))