mirror of
https://github.com/microsoft/qlib.git
synced 2026-07-05 12:00:58 +08:00
Merge remote-tracking branch 'origin/main' into nested_decision_exe
This commit is contained in:
2
.github/workflows/test.yml
vendored
2
.github/workflows/test.yml
vendored
@@ -12,7 +12,7 @@ jobs:
|
||||
runs-on: ${{ matrix.os }}
|
||||
strategy:
|
||||
matrix:
|
||||
os: [windows-latest, ubuntu-16.04, ubuntu-18.04, ubuntu-20.04]
|
||||
os: [windows-latest, ubuntu-18.04, ubuntu-20.04]
|
||||
python-version: [3.6, 3.7, 3.8]
|
||||
|
||||
steps:
|
||||
|
||||
10
.github/workflows/test_macos.yml
vendored
10
.github/workflows/test_macos.yml
vendored
@@ -36,12 +36,15 @@ jobs:
|
||||
run: |
|
||||
python -m pip install numpy==1.19.5
|
||||
python -m pip install pyqlib --ignore-installed ruamel.yaml numpy
|
||||
|
||||
- name: Install Lightgbm for MacOS
|
||||
run: |
|
||||
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Microsoft/qlib/main/.github/brew_install.sh)"
|
||||
HOMEBREW_NO_AUTO_UPDATE=1 brew install lightgbm
|
||||
|
||||
# FIX MacOS error: Segmentation fault
|
||||
# reference: https://github.com/microsoft/LightGBM/issues/4229
|
||||
wget https://raw.githubusercontent.com/Homebrew/homebrew-core/fb8323f2b170bd4ae97e1bac9bf3e2983af3fdb0/Formula/libomp.rb
|
||||
brew unlink libomp
|
||||
brew install libomp.rb
|
||||
- name: Test data downloads
|
||||
run: |
|
||||
python scripts/get_data.py qlib_data --target_dir ~/.qlib/qlib_data/cn_data --interval 1d --region cn
|
||||
@@ -56,7 +59,6 @@ jobs:
|
||||
python -m pip install numpy jupyter jupyter_contrib_nbextensions
|
||||
python -m pip install -U scipy scikit-learn # installing without this line will cause errors on GitHub Actions, while instsalling locally won't
|
||||
python setup.py install
|
||||
|
||||
- name: Install test dependencies
|
||||
run: |
|
||||
python -m pip install --upgrade pip
|
||||
@@ -68,4 +70,4 @@ jobs:
|
||||
python -m pytest . --durations=0
|
||||
- name: Test workflow by config (install from source)
|
||||
run: |
|
||||
python qlib/workflow/cli.py examples/benchmarks/LightGBM/workflow_config_lightgbm_Alpha158.yaml
|
||||
python qlib/workflow/cli.py examples/benchmarks/LightGBM/workflow_config_lightgbm_Alpha158.yaml
|
||||
|
||||
@@ -1 +1 @@
|
||||
0.7.1.99
|
||||
0.7.2.99
|
||||
|
||||
@@ -241,6 +241,7 @@ Online Tool
|
||||
.. automodule:: qlib.workflow.online.utils
|
||||
:members:
|
||||
|
||||
|
||||
RecordUpdater
|
||||
--------------------
|
||||
.. automodule:: qlib.workflow.online.update
|
||||
@@ -257,4 +258,4 @@ Serializable
|
||||
:members:
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
16
examples/benchmarks/LightGBM/features_sample.py
Normal file
16
examples/benchmarks/LightGBM/features_sample.py
Normal file
@@ -0,0 +1,16 @@
|
||||
import datetime
|
||||
import pandas as pd
|
||||
|
||||
from qlib.data.inst_processor import InstProcessor
|
||||
|
||||
|
||||
class Resample1minProcessor(InstProcessor):
|
||||
def __init__(self, hour: int, minute: int, **kwargs):
|
||||
self.hour = hour
|
||||
self.minute = minute
|
||||
|
||||
def __call__(self, df: pd.DataFrame, *args, **kwargs):
|
||||
df.index = pd.to_datetime(df.index)
|
||||
df = df.loc[df.index.time == datetime.time(self.hour, self.minute)]
|
||||
df.index = df.index.normalize()
|
||||
return df
|
||||
@@ -69,4 +69,4 @@ task:
|
||||
- class: PortAnaRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs:
|
||||
config: *port_analysis_config
|
||||
config: *port_analysis_config
|
||||
|
||||
@@ -0,0 +1,83 @@
|
||||
qlib_init:
|
||||
provider_uri:
|
||||
day: "~/.qlib/qlib_data/cn_data"
|
||||
1min: "~/.qlib/qlib_data/cn_data_1min"
|
||||
region: cn
|
||||
dataset_cache: null
|
||||
maxtasksperchild: 1
|
||||
market: &market csi300
|
||||
benchmark: &benchmark SH000300
|
||||
data_handler_config: &data_handler_config
|
||||
start_time: 2008-01-01
|
||||
# 1min closing time is 15:00:00
|
||||
end_time: "2020-08-01 15:00:00"
|
||||
fit_start_time: 2008-01-01
|
||||
fit_end_time: 2014-12-31
|
||||
instruments: *market
|
||||
freq:
|
||||
label: day
|
||||
feature: 1min
|
||||
# with label as reference
|
||||
inst_processor:
|
||||
feature:
|
||||
- class: Resample1minProcessor
|
||||
module_path: features_sample.py
|
||||
kwargs:
|
||||
hour: 14
|
||||
minute: 56
|
||||
|
||||
port_analysis_config: &port_analysis_config
|
||||
strategy:
|
||||
class: TopkDropoutStrategy
|
||||
module_path: qlib.contrib.strategy.strategy
|
||||
kwargs:
|
||||
topk: 50
|
||||
n_drop: 5
|
||||
backtest:
|
||||
verbose: False
|
||||
limit_threshold: 0.095
|
||||
account: 100000000
|
||||
benchmark: *benchmark
|
||||
deal_price: close
|
||||
open_cost: 0.0005
|
||||
close_cost: 0.0015
|
||||
min_cost: 5
|
||||
task:
|
||||
model:
|
||||
class: LGBModel
|
||||
module_path: qlib.contrib.model.gbdt
|
||||
kwargs:
|
||||
loss: mse
|
||||
colsample_bytree: 0.8879
|
||||
learning_rate: 0.2
|
||||
subsample: 0.8789
|
||||
lambda_l1: 205.6999
|
||||
lambda_l2: 580.9768
|
||||
max_depth: 8
|
||||
num_leaves: 210
|
||||
num_threads: 20
|
||||
dataset:
|
||||
class: DatasetH
|
||||
module_path: qlib.data.dataset
|
||||
kwargs:
|
||||
handler:
|
||||
class: Alpha158
|
||||
module_path: qlib.contrib.data.handler
|
||||
kwargs: *data_handler_config
|
||||
segments:
|
||||
train: [2008-01-01, 2014-12-31]
|
||||
valid: [2015-01-01, 2016-12-31]
|
||||
test: [2017-01-01, 2020-08-01]
|
||||
record:
|
||||
- class: SignalRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs: {}
|
||||
- class: SigAnaRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs:
|
||||
ana_long_short: False
|
||||
ann_scaler: 252
|
||||
- class: PortAnaRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs:
|
||||
config: *port_analysis_config
|
||||
@@ -122,5 +122,5 @@ task:
|
||||
ann_scaler: 252
|
||||
- class: PortAnaRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs:
|
||||
kwargs:
|
||||
config: *port_analysis_config
|
||||
|
||||
@@ -122,5 +122,5 @@ task:
|
||||
ann_scaler: 252
|
||||
- class: PortAnaRecord
|
||||
module_path: qlib.workflow.record_temp
|
||||
kwargs:
|
||||
kwargs:
|
||||
config: *port_analysis_config
|
||||
|
||||
@@ -10,16 +10,12 @@ import abc
|
||||
import copy
|
||||
import queue
|
||||
import bisect
|
||||
from typing import List
|
||||
import numpy as np
|
||||
import pandas as pd
|
||||
from multiprocessing import Pool
|
||||
from typing import Iterable, Union
|
||||
from typing import List, Union
|
||||
|
||||
import numpy as np
|
||||
import pandas as pd
|
||||
|
||||
# For supporting multiprocessing in outter code, joblib is used
|
||||
from joblib import delayed
|
||||
|
||||
@@ -30,9 +26,9 @@ from .ops import Operators
|
||||
from .inst_processor import InstProcessor
|
||||
|
||||
from ..log import get_module_logger
|
||||
from .cache import DiskDatasetCache
|
||||
from ..utils.time import Freq
|
||||
from ..utils.resam import resam_calendar
|
||||
from .cache import DiskDatasetCache, DiskExpressionCache
|
||||
from ..utils import (
|
||||
Wrapper,
|
||||
init_instance_by_config,
|
||||
@@ -278,7 +274,6 @@ class InstrumentProvider(abc.ABC, ProviderBackendMixin):
|
||||
"""
|
||||
if isinstance(market, list):
|
||||
return market
|
||||
|
||||
from .filter import SeriesDFilter
|
||||
|
||||
if filter_pipe is None:
|
||||
|
||||
@@ -1,6 +1,5 @@
|
||||
# Copyright (c) Microsoft Corporation.
|
||||
# Licensed under the MIT License.
|
||||
|
||||
"""
|
||||
Updater is a module to update artifacts such as predictions when the stock data is updating.
|
||||
"""
|
||||
@@ -10,11 +9,12 @@ from abc import ABCMeta, abstractmethod
|
||||
import pandas as pd
|
||||
from qlib import get_module_logger
|
||||
from qlib.data import D
|
||||
from qlib.data.dataset import DatasetH
|
||||
from qlib.data.dataset import Dataset, DatasetH
|
||||
from qlib.data.dataset.handler import DataHandlerLP
|
||||
from qlib.model import Model
|
||||
from qlib.utils import get_date_by_shift
|
||||
from qlib.workflow.recorder import Recorder
|
||||
from qlib.workflow.record_temp import SignalRecord
|
||||
|
||||
|
||||
class RMDLoader:
|
||||
@@ -72,12 +72,25 @@ class RecordUpdater(metaclass=ABCMeta):
|
||||
...
|
||||
|
||||
|
||||
class PredUpdater(RecordUpdater):
|
||||
class DSBasedUpdater(RecordUpdater, metaclass=ABCMeta):
|
||||
"""
|
||||
Update the prediction in the Recorder
|
||||
Dataset-Based Updater
|
||||
- Provding updating feature for Updating data based on Qlib Dataset
|
||||
|
||||
Assumption
|
||||
- Based on Qlib dataset
|
||||
- The data to be updated is a multi-level index pd.DataFrame. For example label , prediction.
|
||||
|
||||
LABEL0
|
||||
datetime instrument
|
||||
2021-05-10 SH600000 0.006965
|
||||
SH600004 0.003407
|
||||
... ...
|
||||
2021-05-28 SZ300498 0.015748
|
||||
SZ300676 -0.001321
|
||||
"""
|
||||
|
||||
def __init__(self, record: Recorder, to_date=None, hist_ref: int = 0, freq="day"):
|
||||
def __init__(self, record: Recorder, to_date=None, hist_ref: int = 0, freq="day", fname="pred.pkl"):
|
||||
"""
|
||||
Init PredUpdater.
|
||||
|
||||
@@ -100,15 +113,27 @@ class PredUpdater(RecordUpdater):
|
||||
self.to_date = to_date
|
||||
self.hist_ref = hist_ref
|
||||
self.freq = freq
|
||||
self.fname = fname
|
||||
self.rmdl = RMDLoader(rec=record)
|
||||
|
||||
latest_date = D.calendar(freq=freq)[-1]
|
||||
if to_date == None:
|
||||
to_date = D.calendar(freq=freq)[-1]
|
||||
self.to_date = pd.Timestamp(to_date)
|
||||
to_date = latest_date
|
||||
to_date = pd.Timestamp(to_date)
|
||||
|
||||
if to_date >= latest_date:
|
||||
self.logger.warning(
|
||||
f"The given `to_date`({to_date}) is later than `latest_date`({latest_date}). So `to_date` is clipped to `latest_date`."
|
||||
)
|
||||
to_date = latest_date
|
||||
self.to_date = to_date
|
||||
# FIXME: it will raise error when running routine with delay trainer
|
||||
# should we use another predicition updater for delay trainer?
|
||||
self.old_pred = record.load_object("pred.pkl")
|
||||
self.last_end = self.old_pred.index.get_level_values("datetime").max()
|
||||
# should we use another prediction updater for delay trainer?
|
||||
self.old_data: pd.DataFrame = record.load_object(fname)
|
||||
|
||||
# dropna is for being compatible to some data with future information(e.g. label)
|
||||
# The recent label data should be updated together
|
||||
self.last_end = self.old_data.dropna().index.get_level_values("datetime").max()
|
||||
|
||||
def prepare_data(self) -> DatasetH:
|
||||
"""
|
||||
@@ -127,7 +152,7 @@ class PredUpdater(RecordUpdater):
|
||||
|
||||
def update(self, dataset: DatasetH = None):
|
||||
"""
|
||||
Update the prediction in a recorder.
|
||||
Update the data in a recorder.
|
||||
|
||||
Args:
|
||||
DatasetH: the instance of DatasetH. None for reprepare.
|
||||
@@ -139,7 +164,7 @@ class PredUpdater(RecordUpdater):
|
||||
|
||||
if self.last_end >= self.to_date:
|
||||
self.logger.info(
|
||||
f"The prediction in {self.record.info['id']} are latest ({self.last_end}). No need to update to {self.to_date}."
|
||||
f"The data in {self.record.info['id']} are latest ({self.last_end}). No need to update to {self.to_date}."
|
||||
)
|
||||
return
|
||||
|
||||
@@ -148,14 +173,49 @@ class PredUpdater(RecordUpdater):
|
||||
# For reusing the dataset
|
||||
dataset = self.prepare_data()
|
||||
|
||||
self.record.save_objects(**{self.fname: self.get_update_data(dataset)})
|
||||
|
||||
@abstractmethod
|
||||
def get_update_data(self, dataset: Dataset) -> pd.DataFrame:
|
||||
"""
|
||||
return the updated data based on the given dataset
|
||||
|
||||
The difference between `get_update_data` and `update`
|
||||
- `update_date` only include some data specific feature
|
||||
- `update` include some general routine steps(e.g. prepare dataset, checking)
|
||||
"""
|
||||
...
|
||||
|
||||
|
||||
class PredUpdater(DSBasedUpdater):
|
||||
"""
|
||||
Update the prediction in the Recorder
|
||||
"""
|
||||
|
||||
def get_update_data(self, dataset: Dataset) -> pd.DataFrame:
|
||||
# Load model
|
||||
model = self.rmdl.get_model()
|
||||
|
||||
new_pred: pd.Series = model.predict(dataset)
|
||||
|
||||
cb_pred = pd.concat([self.old_pred, new_pred.to_frame("score")], axis=0)
|
||||
cb_pred = pd.concat([self.old_data, new_pred.to_frame("score")], axis=0)
|
||||
cb_pred = cb_pred.sort_index()
|
||||
|
||||
self.record.save_objects(**{"pred.pkl": cb_pred})
|
||||
|
||||
self.logger.info(f"Finish updating new {new_pred.shape[0]} predictions in {self.record.info['id']}.")
|
||||
return cb_pred
|
||||
|
||||
|
||||
class LabelUpdater(DSBasedUpdater):
|
||||
"""
|
||||
Update the label in the recorder
|
||||
|
||||
Assumption
|
||||
- The label is generated from record_temp.SignalRecord.
|
||||
"""
|
||||
|
||||
def __init__(self, record: Recorder, to_date=None, **kwargs):
|
||||
super().__init__(record, to_date=to_date, fname="label.pkl", **kwargs)
|
||||
|
||||
def get_update_data(self, dataset: Dataset) -> pd.DataFrame:
|
||||
new_label = SignalRecord.generate_label(dataset)
|
||||
cb_data = pd.concat([self.old_data, new_label], axis=0)
|
||||
cb_data = cb_data[~cb_data.index.duplicated(keep="last")].sort_index()
|
||||
return cb_data
|
||||
|
||||
@@ -125,6 +125,30 @@ class SignalRecord(RecordTemp):
|
||||
self.model = model
|
||||
self.dataset = dataset
|
||||
|
||||
@staticmethod
|
||||
def generate_label(dataset):
|
||||
# NOTE:
|
||||
# Python doesn't provide the downcasting mechanism.
|
||||
# We use the trick here to downcast the class
|
||||
orig_cls = dataset.__class__
|
||||
dataset.__class__ = DatasetH
|
||||
|
||||
params = dict(segments="test", col_set="label", data_key=DataHandlerLP.DK_R)
|
||||
try:
|
||||
# Assume the backend handler is DataHandlerLP
|
||||
raw_label = dataset.prepare(**params)
|
||||
except TypeError:
|
||||
# The argument number is not right
|
||||
del params["data_key"]
|
||||
# The backend handler should be DataHandler
|
||||
raw_label = dataset.prepare(**params)
|
||||
except AttributeError:
|
||||
# The data handler is initialize with `drop_raw=True`...
|
||||
# So raw_label is not available
|
||||
raw_label = None
|
||||
dataset.__class__ = orig_cls
|
||||
return raw_label
|
||||
|
||||
def generate(self, **kwargs):
|
||||
# generate prediciton
|
||||
pred = self.model.predict(self.dataset)
|
||||
@@ -140,28 +164,8 @@ class SignalRecord(RecordTemp):
|
||||
pprint(pred.head(5))
|
||||
|
||||
if isinstance(self.dataset, DatasetH):
|
||||
# NOTE:
|
||||
# Python doesn't provide the downcasting mechanism.
|
||||
# We use the trick here to downcast the class
|
||||
orig_cls = self.dataset.__class__
|
||||
self.dataset.__class__ = DatasetH
|
||||
|
||||
params = dict(segments="test", col_set="label", data_key=DataHandlerLP.DK_R)
|
||||
try:
|
||||
# Assume the backend handler is DataHandlerLP
|
||||
raw_label = self.dataset.prepare(**params)
|
||||
except TypeError:
|
||||
# The argument number is not right
|
||||
del params["data_key"]
|
||||
# The backend handler should be DataHandler
|
||||
raw_label = self.dataset.prepare(**params)
|
||||
except AttributeError:
|
||||
# The data handler is initialize with `drop_raw=True`...
|
||||
# So raw_label is not available
|
||||
raw_label = None
|
||||
|
||||
raw_label = self.generate_label(self.dataset)
|
||||
self.recorder.save_objects(**{"label.pkl": raw_label})
|
||||
self.dataset.__class__ = orig_cls
|
||||
|
||||
@staticmethod
|
||||
def list():
|
||||
|
||||
117
tests/rolling_tests/test_update_pred.py
Normal file
117
tests/rolling_tests/test_update_pred.py
Normal file
@@ -0,0 +1,117 @@
|
||||
import copy
|
||||
import unittest
|
||||
|
||||
import fire
|
||||
import pandas as pd
|
||||
|
||||
import qlib
|
||||
from qlib.config import REG_CN
|
||||
from qlib.data import D
|
||||
from qlib.model.trainer import task_train
|
||||
from qlib.tests import TestAutoData
|
||||
from qlib.tests.config import CSI300_GBDT_TASK
|
||||
from qlib.workflow.online.utils import OnlineToolR
|
||||
from qlib.workflow.online.update import LabelUpdater
|
||||
|
||||
|
||||
class TestRolling(TestAutoData):
|
||||
_setup_kwargs = dict(expression_cache=None, dataset_cache=None)
|
||||
|
||||
def test_update_pred(self):
|
||||
"""
|
||||
This test is for testing if it will raise error if the `to_date` is out of the boundary.
|
||||
"""
|
||||
task = copy.deepcopy(CSI300_GBDT_TASK)
|
||||
|
||||
task["record"] = {
|
||||
"class": "SignalRecord",
|
||||
"module_path": "qlib.workflow.record_temp",
|
||||
}
|
||||
|
||||
exp_name = "online_srv_test"
|
||||
|
||||
cal = D.calendar()
|
||||
latest_date = cal[-1]
|
||||
|
||||
train_start = latest_date - pd.Timedelta(days=61)
|
||||
train_end = latest_date - pd.Timedelta(days=41)
|
||||
task["dataset"]["kwargs"]["segments"] = {
|
||||
"train": (train_start, train_end),
|
||||
"valid": (latest_date - pd.Timedelta(days=40), latest_date - pd.Timedelta(days=21)),
|
||||
"test": (latest_date - pd.Timedelta(days=20), latest_date),
|
||||
}
|
||||
|
||||
task["dataset"]["kwargs"]["handler"]["kwargs"] = {
|
||||
"start_time": train_start,
|
||||
"end_time": latest_date,
|
||||
"fit_start_time": train_start,
|
||||
"fit_end_time": train_end,
|
||||
"instruments": "csi300",
|
||||
}
|
||||
|
||||
rec = task_train(task, exp_name)
|
||||
|
||||
pred = rec.load_object("pred.pkl")
|
||||
|
||||
online_tool = OnlineToolR(exp_name)
|
||||
online_tool.reset_online_tag(rec) # set to online model
|
||||
|
||||
online_tool.update_online_pred(to_date=latest_date + pd.Timedelta(days=10))
|
||||
|
||||
def test_update_label(self):
|
||||
|
||||
task = copy.deepcopy(CSI300_GBDT_TASK)
|
||||
|
||||
task["record"] = {
|
||||
"class": "SignalRecord",
|
||||
"module_path": "qlib.workflow.record_temp",
|
||||
}
|
||||
|
||||
exp_name = "online_srv_test"
|
||||
|
||||
cal = D.calendar()
|
||||
shift = 10
|
||||
latest_date = cal[-1 - shift]
|
||||
|
||||
train_start = latest_date - pd.Timedelta(days=61)
|
||||
train_end = latest_date - pd.Timedelta(days=41)
|
||||
task["dataset"]["kwargs"]["segments"] = {
|
||||
"train": (train_start, train_end),
|
||||
"valid": (latest_date - pd.Timedelta(days=40), latest_date - pd.Timedelta(days=21)),
|
||||
"test": (latest_date - pd.Timedelta(days=20), latest_date),
|
||||
}
|
||||
|
||||
task["dataset"]["kwargs"]["handler"]["kwargs"] = {
|
||||
"start_time": train_start,
|
||||
"end_time": latest_date,
|
||||
"fit_start_time": train_start,
|
||||
"fit_end_time": train_end,
|
||||
"instruments": "csi300",
|
||||
}
|
||||
|
||||
rec = task_train(task, exp_name)
|
||||
|
||||
pred = rec.load_object("pred.pkl")
|
||||
|
||||
online_tool = OnlineToolR(exp_name)
|
||||
online_tool.reset_online_tag(rec) # set to online model
|
||||
online_tool.update_online_pred()
|
||||
|
||||
new_pred = rec.load_object("pred.pkl")
|
||||
label = rec.load_object("label.pkl")
|
||||
label_date = label.dropna().index.get_level_values("datetime").max()
|
||||
pred_date = new_pred.dropna().index.get_level_values("datetime").max()
|
||||
|
||||
# The prediction is updated, but the label is not updated.
|
||||
self.assertTrue(label_date < pred_date)
|
||||
|
||||
# Update label now
|
||||
lu = LabelUpdater(rec)
|
||||
lu.update()
|
||||
new_label = rec.load_object("label.pkl")
|
||||
new_label_date = new_label.index.get_level_values("datetime").max()
|
||||
self.assertTrue(new_label_date == pred_date) # make sure the label is updated now
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
@@ -149,15 +149,15 @@ class TestStorage(TestAutoData):
|
||||
|
||||
"""
|
||||
|
||||
feature = FeatureStorage(instrument="SH600004", field="close", freq="day", provider_uri=self.provider_uri)
|
||||
feature = FeatureStorage(instrument="SZ300677", field="close", freq="day", provider_uri=self.provider_uri)
|
||||
|
||||
with self.assertRaises(IndexError):
|
||||
print(feature[0])
|
||||
assert isinstance(
|
||||
feature[815][1], (float, np.float32)
|
||||
feature[3049][1], (float, np.float32)
|
||||
), f"{feature.__class__.__name__}.__getitem__(i: int) error"
|
||||
assert len(feature[815:818]) == 3, f"{feature.__class__.__name__}.__getitem__(s: slice) error"
|
||||
print(f"feature[815: 818]: \n{feature[815: 818]}")
|
||||
assert len(feature[3049:3052]) == 3, f"{feature.__class__.__name__}.__getitem__(s: slice) error"
|
||||
print(f"feature[3049: 3052]: \n{feature[3049: 3052]}")
|
||||
|
||||
print(f"feature[:].tail(): \n{feature[:].tail()}")
|
||||
|
||||
|
||||
Reference in New Issue
Block a user