Skip to main content

A high-performance vector backtesting framework for quantitative strategies

Project description

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

Project details


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-0.2.5.tar.gz (28.1 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-0.2.5-py3-none-any.whl (27.3 kB view details)

Uploaded Python 3

File details

Details for the file kepler_echo-0.2.5.tar.gz.

File metadata

  • Download URL: kepler_echo-0.2.5.tar.gz
  • Upload date:
  • Size: 28.1 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.11.14

File hashes

Hashes for kepler_echo-0.2.5.tar.gz
Algorithm Hash digest
SHA256 36e80eb1517b8e53b4ad0cb5a19526b4c0b0607eb11d84c557f80f5449702a9d
MD5 01dbcd96fed9a8b8e480413e8829f4ae
BLAKE2b-256 c576cd919c3cd26089d2b2c0f5be3b61456158a7ca943dc3ee73bc8e28feebec

See more details on using hashes here.

File details

Details for the file kepler_echo-0.2.5-py3-none-any.whl.

File metadata

  • Download URL: kepler_echo-0.2.5-py3-none-any.whl
  • Upload date:
  • Size: 27.3 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.11.14

File hashes

Hashes for kepler_echo-0.2.5-py3-none-any.whl
Algorithm Hash digest
SHA256 f0bcafdc3bda9e240470a643e4e965f3987eb84509cd6ac0fd828c239762df56
MD5 d4ae6960a38dfe0d3594760d6aaa7a91
BLAKE2b-256 2c1a830c1ec885509157176c070d4355b6641ef5ee23332298cb206e76377f49

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page