Skip to main content

Kepler Echo

Python License

向量化回测框架。

安装

pip install kepler-echo

快速开始

import pandas as pd
from kepler.echo import Strategy

# 价格数据 (MultiIndex: date, item)
price_data = []
for date in ['2020-01-01', '2020-01-02']:
    for stock, o, c in [('A', 10, 10.5), ('B', 20, 20.5), ('C', 30, 30.5)]:
        price_data.append({'date': date, 'item': stock, 'open': o, 'close': c})
price = pd.DataFrame(price_data).set_index(['date', 'item'])

# 信号
signal = pd.DataFrame({
    'A': [0.5, 0.6],
    'B': [-0.3, -0.2],
}, index=pd.date_range('2020-01-01', periods=2))

# 回测
result = (
    Strategy(begin="2020-01-01", end="2020-12-31")
    .data(price)
    .signal(signal)
    .commission((0.001, 0.001))
    .run()
)

print(result.nav)

API

Strategy

Strategy(
    begin="2001-01-01",        # 开始日期
    end="今天",                 # 结束日期
    matching="next_bar",       # 撮合: next_bar / current_bar
    benchmark="",              # 基准 (数据中的某列)
    commission=(0, 0),         # 手续费 (做多, 做空)
)

方法

方法 说明
.data(df, exec_price='open') 添加价格数据
.signal(df) 添加信号
.commission((long, short)) 设置手续费
.benchmark(symbol) 设置基准
.run() 运行,返回结果
.plot(log=True) 绘图

数据格式

支持两种格式:

1. pandas DataFrame (MultiIndex)

index 为 ['date', 'item'],columns 必须包含 closeexec_price 指定的列:

                      close  open
date       item
2020-01-01 A        10.5    10
           B        20.5    20
2020-01-02 A        11.0    10.5
           B        21.0    20.5

2. xarray DataArray

三维数组,维度为 (date, item, feature)

import xarray as xr
import numpy as np

# 创建 xarray DataArray
dates = pd.date_range('2020-01-01', periods=2)
items = ['A', 'B']
features = ['open', 'close']

data = xr.DataArray(
    np.random.randn(2, 2, 2),
    dims=['date', 'item', 'feature'],
    coords={'date': dates, 'item': items, 'feature': features}
)

# 使用
result = Strategy().data(data, exec_price='open').signal(signal).run()

信号格式

宽格式:

signal = pd.DataFrame({
    '000001.SZ': [0.5, 0.6],
    '000002.SZ': [-0.3, -0.2],
}, index=pd.date_range('2020-01-01', periods=2))

长格式:

signal = pd.DataFrame({
    'date': ['2020-01-01', '2020-01-01'],
    'stockid': ['000001.SZ', '000002.SZ'],
    'weight': [0.5, -0.3]
})

结果

result.nav      # 净值 DataFrame
result.hold     # 最终持仓
result.signal   # 原始信号
result.stats    # 统计 (turnover)

nav 列说明:

列名 说明
strategy 策略净值
{benchmark} 基准净值(如果设置了 benchmark)
relative 相对净值 = strategy / benchmark(如果设置了 benchmark)
drawdown 动态回撤(相对收益的回撤,或绝对收益的回撤)

撮合方式

  • next_bar: 下一根 K 线的 exec_price 价格(默认)
  • current_bar: 当前 K 线收盘价

执行价格

exec_price 参数指定 next_bar 模式下的执行价格列:

.data(price)                       # 使用开盘价(默认)
.data(price, exec_price='vwap')    # 使用 VWAP
.data(price, exec_price='close')   # 使用收盘价

许可证

GPL-3.0-or-later

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

kepler_echo-0.3.1.tar.gz (36.7 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

kepler_echo-0.3.1-py3-none-any.whl (31.3 kB view details)

Uploaded Python 3

File details

Details for the file kepler_echo-0.3.1.tar.gz.

File metadata

  • Download URL: kepler_echo-0.3.1.tar.gz
  • Upload date:
  • Size: 36.7 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.11.15

File hashes

Hashes for kepler_echo-0.3.1.tar.gz
Algorithm Hash digest
SHA256 d5bfc4fff68a8b18970b94360823c281ef80c65226797cef236e636192a2112b
MD5 0cf148bc2a64401a88aad2c3d4098efb
BLAKE2b-256 93cfd1df014854a0ed9f3345becb579b98abbe305c96b49c442eaf0e6dc8081c

See more details on using hashes here.

File details

Details for the file kepler_echo-0.3.1-py3-none-any.whl.

File metadata

  • Download URL: kepler_echo-0.3.1-py3-none-any.whl
  • Upload date:
  • Size: 31.3 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.11.15

File hashes

Hashes for kepler_echo-0.3.1-py3-none-any.whl
Algorithm Hash digest
SHA256 e43f80960e41e530da99bccd9b1f2121767dea1fd16400ee8e4289358a5bc205
MD5 d8a6251ceeb43884bf7dcae35fd9c333
BLAKE2b-256 27bbfcd8f258b2f3b4c51195b1c2e15788c203221a2f6075e9e38145c90f12d6

See more details on using hashes here.

Release history Release notifications | RSS feed

This release

0.3.1 This release

2 files

0.3.0

2 files

0.2.9

2 files

0.2.8

2 files

0.2.7

2 files

0.2.6

2 files

0.2.5

2 files

0.2.4

2 files

0.2.3

2 files

0.2.1

2 files

0.2.0

2 files

0.1.9

2 files

0.1.8

2 files

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page