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32 lines
895 B
Python
32 lines
895 B
Python
# Copyright (c) 2015, James Hensman
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from ..core.mapping import Mapping
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from ..core import Param
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class Identity(Mapping):
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"""
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A mapping that does nothing!
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"""
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def __init__(self, input_dim, output_dim, name='identity'):
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Mapping.__init__(self, input_dim, output_dim, name)
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def f(self, X):
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return X
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def update_gradients(self, dL_dF, X):
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pass
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def gradients_X(self, dL_dF, X):
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return dL_dF
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def to_dict(self):
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"""
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Convert the object into a json serializable dictionary.
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Note: It uses the private method _save_to_input_dict of the parent.
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:return dict: json serializable dictionary containing the needed information to instantiate the object
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"""
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input_dict = super(Identity, self)._save_to_input_dict()
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input_dict["class"] = "GPy.mappings.Identity"
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return input_dict
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