{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "from vnpy.trader.optimize import OptimizationSetting\n",
    "from vnpy_spreadtrading.backtesting import BacktestingEngine\n",
    "from vnpy_spreadtrading.strategies.statistical_arbitrage_strategy import (\n",
    "    StatisticalArbitrageStrategy\n",
    ")\n",
    "from vnpy_spreadtrading.base import LegData, SpreadData\n",
    "from datetime import datetime"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "spread = SpreadData(\n",
    "    name=\"IF-Spread\",\n",
    "    legs=[LegData(\"IF1911.CFFEX\"), LegData(\"IF1912.CFFEX\")],\n",
    "    variable_symbols={\"A\": \"IF1911.CFFEX\", \"B\": \"IF1912.CFFEX\"},\n",
    "    variable_directions={\"A\": 1, \"B\": -1},\n",
    "    price_formula=\"A-B\",\n",
    "    trading_multipliers={\"IF1911.CFFEX\": 1, \"IF1912.CFFEX\": 1},\n",
    "    active_symbol=\"IF1911.CFFEX\",\n",
    "    min_volume=1,\n",
    "    compile_formula=False                          # 回测时不编译公式，compile_formula传False，从而支持多进程优化\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "engine = BacktestingEngine()\n",
    "engine.set_parameters(\n",
    "    spread=spread,\n",
    "    interval=\"1m\",\n",
    "    start=datetime(2019, 6, 10),\n",
    "    end=datetime(2019, 11, 10),\n",
    "    rate=0,\n",
    "    slippage=0,\n",
    "    size=300,\n",
    "    pricetick=0.2,\n",
    "    capital=1_000_000,\n",
    ")\n",
    "engine.add_strategy(StatisticalArbitrageStrategy, {})"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": false
   },
   "outputs": [],
   "source": [
    "engine.load_data()\n",
    "engine.run_backtesting()\n",
    "df = engine.calculate_result()\n",
    "engine.calculate_statistics()\n",
    "engine.show_chart()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "scrolled": false
   },
   "outputs": [],
   "source": [
    "for trade in engine.trades.values():\n",
    "    print(trade)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "setting = OptimizationSetting()\n",
    "setting.set_target(\"sharpe_ratio\")\n",
    "setting.add_parameter(\"boll_window\", 10, 30, 1)\n",
    "setting.add_parameter(\"boll_dev\", 1, 3, 1)\n",
    "\n",
    "engine.run_ga_optimization(setting)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "engine.run_bf_optimization(setting)"
   ]
  }
 ],
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