Zipline 3.0 中文文档（一）（3）

%%zipline --start 2014-1-1 --end 2018-1-1 -o dma.pickle
from zipline.api import order_target, record, symbol
import matplotlib.pyplot as plt
def initialize(context):
    context.i = 0
    context.asset = symbol('AAPL')
def handle_data(context, data):
    # Skip first 300 days to get full windows
    context.i += 1
    if context.i < 300:
        return
    # Compute averages
    # data.history() has to be called with the same params
    # from above and returns a pandas dataframe.
    short_mavg = data.history(context.asset, 'price', bar_count=100, frequency="1d").mean()
    long_mavg = data.history(context.asset, 'price', bar_count=300, frequency="1d").mean()
    # Trading logic
    if short_mavg > long_mavg:
        # order_target orders as many shares as needed to
        # achieve the desired number of shares.
        order_target(context.asset, 100)
    elif short_mavg < long_mavg:
        order_target(context.asset, 0)
    # Save values for later inspection
    record(AAPL=data.current(context.asset, 'price'),
           short_mavg=short_mavg,
           long_mavg=long_mavg)
def analyze(context, perf):
    fig = plt.figure()
    ax1 = fig.add_subplot(211)
    perf.portfolio_value.plot(ax=ax1)
    ax1.set_ylabel('portfolio value in $')
    ax2 = fig.add_subplot(212)
    perf['AAPL'].plot(ax=ax2)
    perf[['short_mavg', 'long_mavg']].plot(ax=ax2)
    perf_trans = perf.loc[[t != [] for t in perf.transactions]]
    buys = perf_trans.loc[[t[0]['amount'] > 0 for t in perf_trans.transactions]]
    sells = perf_trans.loc[
        [t[0]['amount'] < 0 for t in perf_trans.transactions]]
    ax2.plot(buys.index, perf.short_mavg.loc[buys.index],
             '^', markersize=10, color='m')
    ax2.plot(sells.index, perf.short_mavg.loc[sells.index],
             'v', markersize=10, color='k')
    ax2.set_ylabel('price in $')
    plt.legend(loc=0)
    plt.show() 

from zipline.examples import buyapple 

from zipline.api import order, record, symbol
def initialize(context):
    pass
def handle_data(context, data):
    order(symbol('AAPL'), 10)
    record(AAPL=data.current(symbol('AAPL'), 'price')) 

from zipline.examples import buyapple 

from zipline.api import order, record, symbol
def initialize(context):
    pass
def handle_data(context, data):
    order(symbol('AAPL'), 10)
    record(AAPL=data.current(symbol('AAPL'), 'price')) 

$  zipline  ingest  -b  <bundle> 

$  zipline  run  --help 

Usage: zipline run [OPTIONS]
Run a backtest for the given algorithm.
Options:
 -f, --algofile FILENAME         The file that contains the algorithm to run.
 -t, --algotext TEXT             The algorithm script to run.
 -D, --define TEXT               Define a name to be bound in the namespace
                                 before executing the algotext. For example
                                 '-Dname=value'. The value may be any python
                                 expression. These are evaluated in order so
                                 they may refer to previously defined names.
 --data-frequency [daily|minute]
                                 The data frequency of the simulation.
                                 [default: daily]
 --capital-base FLOAT            The starting capital for the simulation.
                                 [default: 10000000.0]
 -b, --bundle BUNDLE-NAME        The data bundle to use for the simulation.
                                 [default: quandl]
 --bundle-timestamp TIMESTAMP    The date to lookup data on or before.
                                 [default: <current-time>]
 -s, --start DATE                The start date of the simulation.
 -e, --end DATE                  The end date of the simulation.
 -o, --output FILENAME           The location to write the perf data. If this
                                 is '-' the perf will be written to stdout.
                                 [default: -]
 --trading-calendar TRADING-CALENDAR
                                 The calendar you want to use e.g. LSE. NYSE
                                 is the default.
 --print-algo / --no-print-algo  Print the algorithm to stdout.
 --benchmark-file                The csv file that contains the benchmark
                                 returns (date, returns columns)
 --benchmark-symbol              The instrument's symbol to be used as
                                 a benchmark.
                                 (should exist in the ingested bundle)
 --benchmark-sid                 The sid of the instrument to be used as a
                                 benchmark.
                                 (should exist in the ingested bundle)
 --no-benchmark                  This flag is used to set the benchmark to
                                 zero. Alpha, beta and benchmark metrics
                                 are not calculated
 --help                          Show this message and exit. 

zipline  run  -f  ../zipline/examples/buyapple.py  --start  2016-1-1  --end  2018-1-1  -o  buyapple_out.pickle  --no-benchmark 

AAPL
[2018-01-03 04:30:51.843465] INFO: Performance: Simulated 503 trading days out of 503.
[2018-01-03 04:30:51.843598] INFO: Performance: first open: 2016-01-04 14:31:00+00:00
[2018-01-03 04:30:51.843672] INFO: Performance: last close: 2017-12-29 21:00:00+00:00 

import pandas as pd
perf = pd.read_pickle('buyapple_out.pickle') # read in perf DataFrame
perf.head() 

%pylab inline
figsize(12, 12)
import matplotlib.pyplot as plt
ax1 = plt.subplot(211)
perf.portfolio_value.plot(ax=ax1)
ax1.set_ylabel('Portfolio Value')
ax2 = plt.subplot(212, sharex=ax1)
perf.AAPL.plot(ax=ax2)
ax2.set_ylabel('AAPL Stock Price') 

Populating the interactive namespace from numpy and matplotlib 

<matplotlib.text.Text at 0x10c48c198> 

%load_ext zipline 

%%zipline --start 2016-1-1 --end 2018-1-1
from zipline.api import symbol, order, record
def initialize(context):
    pass
def handle_data(context, data):
    order(symbol('AAPL'), 10)
    record(AAPL=data.current(symbol('AAPL'), "price") 

_.head()