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fix doc

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bxdd
2021-03-22 18:37:13 +08:00
parent 2b74b4dfa4
commit c6b67cb8fe
1 changed files with 3 additions and 3 deletions
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docs/component/data.rst
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@@ -298,9 +298,9 @@ Here are some important interfaces that ``DataHandlerLP`` provides:
.. autoclass:: qlib.data.dataset.handler.DataHandlerLP .. autoclass:: qlib.data.dataset.handler.DataHandlerLP
:members: __init__, fetch, get_cols :members: __init__, fetch, get_cols
If users want to load features and labels by config, users can inherit ``qlib.data.dataset.handler.ConfigDataHandler``, ``Qlib`` also provides some preprocess method in this subclass. If users want to load features and labels by config, users can define a new handler and call the static method `parse_config_to_fields` of ``qlib.contrib.data.handler.Alpha158``.
If users want to use qlib data, `QLibDataHandler` is recommended. Users can inherit their custom class from `QLibDataHandler`, which is also a subclass of `ConfigDataHandler`. Also, users can pass ``qlib.contrib.data.processor.ConfigSectionProcessor`` that provides some preprocess method for features defined by config into the new handler.
Processor Processor
@@ -337,7 +337,6 @@ Qlib provides implemented data handler `Alpha158`. The following example shows h
.. note:: Users need to initialize ``Qlib`` with `qlib.init` first, please refer to `initialization <../start/initialization.html>`_. .. note:: Users need to initialize ``Qlib`` with `qlib.init` first, please refer to `initialization <../start/initialization.html>`_.
.. code-block:: Python .. code-block:: Python
import qlib import qlib
@@ -364,6 +363,7 @@ Qlib provides implemented data handler `Alpha158`. The following example shows h
# fetch all the features # fetch all the features
print(h.fetch(col_set="feature")) print(h.fetch(col_set="feature"))
API API
--------- ---------