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Make input signal meanfree and unit variance
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_train_seq List of tuples:: |
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dtype dtype |
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input_dim Input dimensions |
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output_dim Output dimensions |
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supported_dtypes Supported dtypes |
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If the input dimension and the output dimension are unspecified, they will be set when the `train` or `execute` method is called for the first time. If dtype is unspecified, it will be inherited from the data it receives at the first call of `train` or `execute`. Every subclass must take care of up- or down-casting the internal structures to match this argument (use `_refcast` private method when possible).
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Process the data contained in `x`. If the object is still in the training phase, the function `stop_training` will be called. `x` is a matrix having different variables on different columns and observations on the rows. By default, subclasses should overwrite `_execute` to implement their execution phase. The docstring of the `_execute` method overwrites this docstring.
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Invert `y`. If the node is invertible, compute the input ``x`` such that ``y = execute(x)``. By default, subclasses should overwrite `_inverse` to implement their `inverse` function. The docstring of the `inverse` method overwrites this docstring.
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Return True if the node can be trained, False otherwise.
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Stop the training phase. By default, subclasses should overwrite `_stop_training` to implement this functionality. The docstring of the `_stop_training` method overwrites this docstring.
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Update the internal structures according to the input data `x`. `x` is a matrix having different variables on different columns and observations on the rows. By default, subclasses should overwrite `_train` to implement their training phase. The docstring of the `_train` method overwrites this docstring. Note: a subclass supporting multiple training phases should implement the *same* signature for all the training phases and document the meaning of the arguments in the `_train` method doc-string. Having consistent signatures is a requirement to use the node in a flow.
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