Package mdp :: Package hinet :: Class DoubleRhomb2dSwitchboard
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Class DoubleRhomb2dSwitchboard

Rectangular lattice switchboard covering a rhombic lattice.

All inner points of the rhombic lattice are covered twice. The rectangular
fields are rotated by 45 degree.

We assume that both the first and last row is a long row, e.g.

*   *   *   *
  *   *   *
*   *   *   *
  *   *   *
*   *   *   *

The incoming data is expected to contain the long rows first, then
the short rows.

The alignment of the first field is chosen to minimize cutaway.

public attributes (in addition to init arguments and inherited attributes):

Instance Methods [hide private]
__init__(self, long_in_channels_xy, diag_field_channels, in_channel_dim=1)
Calculate the connections.

Inherited from unreachable.newobject: __long__, __native__, __nonzero__, __unicode__, next

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

    Inherited from ChannelSwitchboard
get_out_channel_input(self, channel)
Return the input connections for the given channel index.
get_out_channel_node(self, channel)
Return a Switchboard that does the routing for a single output channel.
get_out_channels_input_channels(self, channels)
Return array of input channel indices for the given output channels.
    Inherited from Switchboard
_execute(self, x)
Return the list of dtypes supported by this node.
_inverse(self, x)
execute(self, x)
Process the data contained in `x`.
inverse(self, x)
Invert `y`.
Return True if the node can be inverted, False otherwise.
    Inherited from Node
__add__(self, other)
__call__(self, x, *args, **kwargs)
Calling an instance of Node is equivalent to calling its execute method.
_check_input(self, x)
_check_output(self, y)
_check_train_args(self, x, *args, **kwargs)
_pre_execution_checks(self, x)
This method contains all pre-execution checks.
_pre_inversion_checks(self, y)
This method contains all pre-inversion checks.
_refcast(self, x)
Helper function to cast arrays to the internal dtype.
_set_dtype(self, t)
_set_input_dim(self, n)
_set_output_dim(self, n)
_stop_training(self, *args, **kwargs)
_train(self, x)
copy(self, protocol=None)
Return a deep copy of the node.
Return the index of the current training phase.
Return dtype.
Return input dimensions.
Return output dimensions.
Return the number of training phases still to accomplish.
Return dtypes supported by the node as a list of dtype objects.
Return True if the node has multiple training phases.
Return True if the node is in the training phase, False otherwise.
save(self, filename, protocol=-1)
Save a pickled serialization of the node to filename. If filename is None, return a string.
set_dtype(self, t)
Set internal structures' dtype.
set_input_dim(self, n)
Set input dimensions.
set_output_dim(self, n)
Set output dimensions.
stop_training(self, *args, **kwargs)
Stop the training phase.
train(self, x, *args, **kwargs)
Update the internal structures according to the input data x.
Static Methods [hide private]
    Inherited from Switchboard
Return True if the node can be trained, False otherwise.
Properties [hide private]

Inherited from object: __class__

    Inherited from Node
List of tuples:
Input dimensions
Output dimensions
Supported dtypes
Method Details [hide private]

__init__(self, long_in_channels_xy, diag_field_channels, in_channel_dim=1)

Calculate the connections.

Note that the incoming data will be interpreted as a rhombic grid,
as it is produced by DoubleRect2dSwitchboard.

Keyword arguments:
long_in_channels_xy -- 2-Tuple with number of long input channels in
    the x- and y-direction (or a single number for both).
diag_field_channels -- Field edge size (before the rotation).
in_channel_dim -- Number of connections per input channel

Overrides: object.__init__