请问数据下载下来之后数据如何在已下载的基础上增量更新？

[caijynb]

python scripts/get_data.py qlib_data --target_dir ~/.qlib/qlib_data/cn_data --region cn 直接运行该命令获取到的数据到2020-09-25为止，存放的目录是~/.qlib/qlib_data/cn_data

如何在之前的数据基础上更新至2022-07-20 https://qlib.readthedocs.io/en/latest/component/data.html#data-preparation 该章节给出的命令是： python scripts/data_collector/yahoo/collector.py update_data_to_bin --qlib_data_1d_dir --trading_date --end_date 替换掉参数后命令为： python scripts/data_collector/yahoo/collector.py update_data_to_bin --qlib_data_1d_dir ~/.qlib/qlib_data/cn_data --trading_date 2020-09-25 --end_date 2022-07-20

运行报错： get_simple: 1 :name 'start' is not defined

[caijynb]

如果更换命令的保存路径：python scripts/data_collector/yahoo/collector.py update_data_to_bin --qlib_data_1d_dir ~/test/cn_data --trading_date 2020-09-25 --end_date 2022-07-20

会下载数据再报错get_simple: 1 :name 'start' is not defined

且下载下来的数据依然是到2020-09-25为止

[Lay-du]

Hello，I'm having the same problem you had before，have you solved it？

[SunsetWolf]

Can this PR help you?

[Alsac]

Maybe your qlib_data_1d_dir should be ~/.qlib/qlib_data/cn_data/, you lost the symbol "/" at the last.

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[jeremy-feng]

Thanks to Alsac. This works for me:

python scripts/data_collector/yahoo/collector.py update_data_to_bin --qlib_data_1d_dir ~/.qlib/qlib_data/cn_data/ --trading_date 2020-09-26 --end_date 2023-04-08