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Support Point-in-time Data Operation (#343)
* add period ops class * black format * add pit data read * fix bug in period ops * update ops runnable * update PIT test example * black format * update PIT test * update tets_PIT * update code format * add check_feature_exist * black format * optimize the PIT Algorithm * fix bug * update example * update test_PIT name * add pit collector * black format * fix bugs * fix try * fix bug & add dump_pit.py * Successfully run and understand PIT * Add some docs and remove a bug * mv crypto collector * black format * Run succesfully after merging master * Pass test and fix code * remove useless PIT code * fix PYlint * Rename Co-authored-by: Young <afe.young@gmail.com>
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scripts/data_collector/pit/test_pit.py
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scripts/data_collector/pit/test_pit.py
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# Copyright (c) Microsoft Corporation.
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# Licensed under the MIT License.
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import qlib
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from qlib.data import D
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import unittest
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class TestPIT(unittest.TestCase):
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"""
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NOTE!!!!!!
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The assert of this test assumes that users follows the cmd below and only download 2 stock.
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`python collector.py download_data --source_dir ./csv_pit --start 2000-01-01 --end 2020-01-01 --interval quarterly --symbol_flt_regx "^(600519|000725).*"`
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"""
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def setUp(self):
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# qlib.init(kernels=1) # NOTE: set kernel to 1 to make it debug easier
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qlib.init() # NOTE: set kernel to 1 to make it debug easier
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def to_str(self, obj):
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return "".join(str(obj).split())
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def check_same(self, a, b):
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self.assertEqual(self.to_str(a), self.to_str(b))
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def test_query(self):
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instruments = ["sh600519"]
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fields = ["P($$roewa_q)", "P($$yoyni_q)"]
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# Mao Tai published 2019Q2 report at 2019-07-13 & 2019-07-18
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# - http://www.cninfo.com.cn/new/commonUrl/pageOfSearch?url=disclosure/list/search&lastPage=index
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data = D.features(instruments, fields, start_time="2019-01-01", end_time="20190719", freq="day")
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print(data)
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res = """
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P($$roewa_q) P($$yoyni_q)
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count 133.000000 133.000000
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mean 0.196412 0.277930
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std 0.097591 0.030262
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min 0.000000 0.243892
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25% 0.094737 0.243892
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50% 0.255220 0.304181
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75% 0.255220 0.305041
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max 0.344644 0.305041
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"""
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self.check_same(data.describe(), res)
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res = """
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P($$roewa_q) P($$yoyni_q)
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instrument datetime
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sh600519 2019-07-15 0.000000 0.305041
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2019-07-16 0.000000 0.305041
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2019-07-17 0.000000 0.305041
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2019-07-18 0.175322 0.252650
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2019-07-19 0.175322 0.252650
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"""
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self.check_same(data.tail(), res)
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def test_no_exist_data(self):
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fields = ["P($$roewa_q)", "P($$yoyni_q)", "$close"]
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data = D.features(["sh600519", "sh601988"], fields, start_time="2019-01-01", end_time="20190719", freq="day")
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data["$close"] = 1 # in case of different dataset gives different values
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print(data)
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expect = """
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P($$roewa_q) P($$yoyni_q) $close
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instrument datetime
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sh600519 2019-01-02 0.25522 0.243892 1
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2019-01-03 0.25522 0.243892 1
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2019-01-04 0.25522 0.243892 1
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2019-01-07 0.25522 0.243892 1
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2019-01-08 0.25522 0.243892 1
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... ... ... ...
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sh601988 2019-07-15 NaN NaN 1
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2019-07-16 NaN NaN 1
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2019-07-17 NaN NaN 1
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2019-07-18 NaN NaN 1
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2019-07-19 NaN NaN 1
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[266 rows x 3 columns]
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"""
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self.check_same(data, expect)
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def test_expr(self):
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fields = [
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"P(Mean($$roewa_q, 1))",
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"P($$roewa_q)",
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"P(Mean($$roewa_q, 2))",
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"P(Ref($$roewa_q, 1))",
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"P((Ref($$roewa_q, 1) +$$roewa_q) / 2)",
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]
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instruments = ["sh600519"]
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data = D.features(instruments, fields, start_time="2019-01-01", end_time="20190719", freq="day")
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expect = """
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P(Mean($$roewa_q, 1)) P($$roewa_q) P(Mean($$roewa_q, 2)) P(Ref($$roewa_q, 1)) P((Ref($$roewa_q, 1) +$$roewa_q) / 2)
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instrument datetime
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sh600519 2019-07-01 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-02 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-03 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-04 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-05 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-08 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-09 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-10 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-11 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-12 0.094737 0.094737 0.219691 0.344644 0.219691
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2019-07-15 0.000000 0.000000 0.047369 0.094737 0.047369
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2019-07-16 0.000000 0.000000 0.047369 0.094737 0.047369
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2019-07-17 0.000000 0.000000 0.047369 0.094737 0.047369
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2019-07-18 0.175322 0.175322 0.135029 0.094737 0.135029
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2019-07-19 0.175322 0.175322 0.135029 0.094737 0.135029
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"""
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self.check_same(data.tail(15), expect)
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def test_unlimit(self):
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# fields = ["P(Mean($$roewa_q, 1))", "P($$roewa_q)", "P(Mean($$roewa_q, 2))", "P(Ref($$roewa_q, 1))", "P((Ref($$roewa_q, 1) +$$roewa_q) / 2)"]
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fields = ["P($$roewa_q)"]
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instruments = ["sh600519"]
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_ = D.features(instruments, fields, freq="day") # this should not raise error
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data = D.features(instruments, fields, end_time="20200101", freq="day") # this should not raise error
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s = data.iloc[:, 0]
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# You can check the expected value based on the content in `docs/advanced/PIT.rst`
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expect = """
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instrument datetime
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sh600519 1999-11-10 NaN
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2007-04-30 0.090219
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2007-08-17 0.139330
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2007-10-23 0.245863
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2008-03-03 0.347900
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2008-03-13 0.395989
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2008-04-22 0.100724
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2008-08-28 0.249968
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2008-10-27 0.334120
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2009-03-25 0.390117
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2009-04-21 0.102675
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2009-08-07 0.230712
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2009-10-26 0.300730
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2010-04-02 0.335461
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2010-04-26 0.083825
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2010-08-12 0.200545
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2010-10-29 0.260986
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2011-03-21 0.307393
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2011-04-25 0.097411
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2011-08-31 0.248251
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2011-10-18 0.318919
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2012-03-23 0.403900
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2012-04-11 0.403925
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2012-04-26 0.112148
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2012-08-10 0.264847
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2012-10-26 0.370487
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2013-03-29 0.450047
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2013-04-18 0.099958
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2013-09-02 0.210442
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2013-10-16 0.304543
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2014-03-25 0.394328
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2014-04-25 0.083217
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2014-08-29 0.164503
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2014-10-30 0.234085
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2015-04-21 0.078494
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2015-08-28 0.137504
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2015-10-26 0.201709
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2016-03-24 0.264205
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2016-04-21 0.073664
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2016-08-29 0.136576
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2016-10-31 0.188062
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2017-04-17 0.244385
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2017-04-25 0.080614
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2017-07-28 0.151510
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2017-10-26 0.254166
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2018-03-28 0.329542
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2018-05-02 0.088887
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2018-08-02 0.170563
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2018-10-29 0.255220
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2019-03-29 0.344644
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2019-04-25 0.094737
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2019-07-15 0.000000
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2019-07-18 0.175322
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2019-10-16 0.255819
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Name: P($$roewa_q), dtype: float32
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"""
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self.check_same(s[~s.duplicated().values], expect)
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def test_expr2(self):
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instruments = ["sh600519"]
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fields = ["P($$roewa_q)", "P($$yoyni_q)"]
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fields += ["P(($$roewa_q / $$yoyni_q) / Ref($$roewa_q / $$yoyni_q, 1) - 1)"]
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fields += ["P(Sum($$yoyni_q, 4))"]
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fields += ["$close", "P($$roewa_q) * $close"]
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data = D.features(instruments, fields, start_time="2019-01-01", end_time="2020-01-01", freq="day")
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print(data)
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print(data.describe())
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if __name__ == "__main__":
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unittest.main()
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